492 lines
12 KiB
Plaintext
492 lines
12 KiB
Plaintext
.\" $NetBSD: prep,v 1.15 2015/05/09 08:13:34 snj Exp $
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.
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First and foremost, before beginning the installation process,
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.Em make sure you have a reliable backup
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of any data on your hard disk that you
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wish to keep.
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Repartitioning your hard disk is an excellent way to destroy important data.
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.Ss2 Software requirements
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You will need the following RISC OS software:
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.Bl -bullet
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.It
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A program that will unpack sparchives.
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We recommend that you get David Pilling's !SparkPlug.
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A self-extracting version of this
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can be found in the distribution directory at
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.Pa installation/misc/splug.bas
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or at David Pilling's website:
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.Lk http://www.davidpilling.net/free.html
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.It
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A program to report your disk's geometry:
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.Bl -bullet
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.It
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Not really needed, as you can simply boot the installation
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kernel and look for the geometry in the boot messages.
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.It
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Sergio Monesi's fsck suite (a good thing to have around
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anyway).
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Available from:
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.Lk http://www.monesi.com/sergio/fsck.html
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.It
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!Zap (The read disk facility).
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Available from:
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.Lk http://zap.tartarus.org/
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.It
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The partition software/formatter for your desired installation
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target:
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.Bl -bullet
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.It
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IDE disks on motherboard interface: !HForm
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.It
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IDE disks on Simtec interface: UNKNOWN
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.It
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IDE disks on ICS interface: UNKNOWN
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.It
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IDE disks on RapIDE interface: UNKNOWN
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.It
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Acorn SCSI cards: ScsiDM
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.It
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Power-tec SCSI cards: !PowerMgr
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.It
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Cumana SCSI-2: !SCSIMgr
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.It
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oak SCSI-1 card: UNKNOWN
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.It
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MCS Connect32 SCSI: UNKNOWN
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.It
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Morley SCSI: UNKNOWN
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.El
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.El
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.It
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An installation kernel for your platform:
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.Pp
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RiscPC/A7000(+)/NC's : INSTALL kernel
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.It
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The Bootloader and RISC OS tools:
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.Pa BtNetBSD.spk
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as found in the
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.Pa installation/misc
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directory.
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(This should be pre-extracted if you're installing from CD-ROM).
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.It
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The
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.Nx*M
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distribution sets (Will be on the CD-ROM, or
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available from your nearest
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.Nx
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ftp site).
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.It
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A hardcopy of this document
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.El
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.Ss2 Preliminary steps
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Unpack your BtNetBSD archive in whatever way.
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.Ss2 Preparing your hard disk
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Terms:
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.Bl -tag -width "File system"
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.It Device
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The actual physical hard disk
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.It Partition
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A section of a device.
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.It File system
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A structured partition that is able to hold files.
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.It Disc
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A RISC OS file system in a partition.
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There can be more than one Disc per Device.
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.El
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.Pp
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You will have to decide which device you wish to install
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.Nx
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on.
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You will also have to decide whether you want to split the device
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between one or more RiscOS Discs and
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.Nx
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or dedicate a whole
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Device for
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.Nx .
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.Pp
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In making this decision you should consider the possibility that if
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.Nx
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is incorrectly configured on a shared device then your shared
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data is at risk.
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.Pp
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It is still recommended that if you decide to dedicate a device to
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.Nx
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that you set aside a small RISC OS partition at the beginning
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of the device.
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This is a useful place to store the RISC OS side of
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.Nx ,
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and will make the use of UnixFS easier to configure.
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If you do decide to create a minimal RISC OS partition at the beginning of
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the device, a size of 10-20 MB is recommended (some partitioning
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software has problems with partitions smaller than this).
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.Pp
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The point is that you will have to repartition your device to make
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room for a separate partition after the RISC OS one for
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.Nx .
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This
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means backing up your device, re-partitioning it and then copying all
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the data back afterwards.
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We recommend that you only copy the needed
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data back and put off installing the rest until you have
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.Nx
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up
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and running.
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This way you will save yourself a lot of work if
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something goes wrong and you have to start all over again.
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.Ss2 Sharing your device
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2.1.1 Acorn IDE
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.Pp
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Use !HForm for this interface.
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This is a program that is delivered with your computer and is located in the
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.Pa Utilities
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directory on your
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hard disk.
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.Pp
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With this software you only have the possibility of using one
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partition for RISC OS, so you have to set the rest aside for
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.Nx .
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.Pp
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Use this procedure to set up your device:
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.Bl -bullet
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.It
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Start !HForm by double-clicking on its icon.
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.It
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Choose the "custom" or "other" option when prompted (usually
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the last).
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.It
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Use the default values for the geometry but do not enter the
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full number of cylinders.
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Just enter the number you want to use for RISC OS.
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Make a note of this number.
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.It
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Continue to accept the default answers until you're asked
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whether you want to format or initialize, choose initialize.
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.It
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Go to the section about running
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.Ic bb_riscbsd .
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.El
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.Pp
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2.1.2 Cumana SCSI-2 card
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.Pp
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It is recommended that you use a newer version of !SCSIMgr (newer
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than v1.55) since this will be easier to use when you want to leave
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part of the device unused by RISC OS.
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You should check for the latest version of this software at the following URL:
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.Lk http://www.cumana.demon.co.uk
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.Pp
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You need to create one or more RISC OS partitions, and you do it in
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in the following way:
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.Bl -bullet
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.It
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Run !SCSIMgr by double-clicking on it.
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.It
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Select the device you wish to repartition.
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.It
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Click on the clear icon in the partitions subwindow.
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.It
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This will give you a dialogue box where you can specify the
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size of the RISC OS partitions.
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Do not select all since you want to use part of it for
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.Nx .
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.It
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Enter the amount of the device you wish to reserve for RiscOS.
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This will be the whole device size less the amount you want to reserve for
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.Nx .
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Make a note of this number.
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.It
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If you like, split the RISC OS portion of the device into
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several partition (you should only "see" the RiscOS portion).
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.It
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Click on Execute when you are happy with the partitions.
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This will create your partitions, and wipe your device.
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.It
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Go to the section about running
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.Ic bb_riscbsd .
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.El
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.Pp
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2.1.3 Alsystems Power-tec SCSI-2 card
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.Pp
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You must use the !PowerMgr program to partition the device.
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.Pp
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The RISC OS partitions should be called
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.Ql RiscOs: ,
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and the
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.Nx
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one should be called
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.Ql Empty: .
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.Pp
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Here is the procedure you should use:
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.Bl -bullet
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.It
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Start !PowerMgr by double-clicking on its icon.
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.It
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Click on advanced in the main window
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.It
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Click on Define/create partitions
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.Bl -bullet
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.It
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Click on the device you want to set up for NetBSD.
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.It
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Set up the RISC OS partitions as
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.Ql RiscOs:
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and the remaining one as
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.Ql Empty: .
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.It
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Click on each figure and press RETURN.
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.It
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Click on partition drive.
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.It
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Click on yes to warning as you really want to wipe
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the device.
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.It
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Click on yes to proceed, this will lead you to the
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partition init.
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.El
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.It
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Partition init
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.Bl -bullet
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.It
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Set a tick on all
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.Ql RiscOs:
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partitions, give them a name and set LFAU to auto.
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.It
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Unset the tick on your
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.Ql Empty:
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partition.
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.It
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Click on Initialize selected partitions.
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.It
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Click on yes to proceed init as you want to wipe the
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selected partitions.
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.It
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Click on yes to proceed to configure.
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.El
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.It
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Configure
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.Bl -bullet
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.It
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Here you should set up the RISC OS partitions as you like them.
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Normally the default will be ok.
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.It
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Click on configure.
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This will configure your computer and give you access to the Discs.
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.El
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.It
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You
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.Em must not
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run
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.Ic bb_riscbsd .
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.El
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.Pp
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2.1.4 Acorn SCSI card
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.Pp
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You can only have one RISC OS partition with this card.
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The rest has to be set aside for
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.Nx .
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This card does not have a friendly WIMP-based interface on the SCSI
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management program, but the command line version is very good.
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You should run this in a task window (press
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.Key CTRL-F12 ) :
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.Bd -ragged
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.Li *dir Ar location_of_scsidm
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.br
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.Li *scsidm
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.Ed
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You will get the following prompt:
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.Dl scsidm\*[Gt]
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Now you should enter the following commands:
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.Bl -tag -width Ic
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.It Ic probe
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(to see which devices are available)
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.It Ic device Ar no
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(replace
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.Ar no
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with the no of your device)
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.It Ic section
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(to divide the device between RISC OS and
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.Nx )
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.Bl -bullet
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.It
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Answer yes to the question:
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.Dl Include RISCiX partitions?
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.It
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Enter the size of the RISC OS area in blocks
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(sectors)
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.It
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SCSIDM will round this up to the nearest cylinder
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boundary.
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.It
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Answer yes to the question:
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.Bd -ragged -offset indent
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.Li "Do you really want to section device" Ar no Ns Li "?"
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.Ed
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.It
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This will section the device into two partitions.
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.El
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.It Ic quit
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.El
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.Pp
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Go to the section on running
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.Ic bb_riscbsd .
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.Pp
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2.1.5 Other interfaces
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.Pp
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It may not be possible to partition devices on other interface.
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If you are using a different interface you have 2 options:
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.Bl -bullet
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.It
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Try to work out how to partition devices on it
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.It
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Use the entire device for
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.Nx
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.El
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.Ss2 Using a whole device for NetBSD
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.Pp
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As a safety precaution
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.Nx*M
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looks for a filecore bootblock
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at the beginning of any device it labels.
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If it finds one and it looks as though it is in use then
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.Nx*M
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will not touch it.
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.Pp
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Because of this, if you've ever used your device for RiscOS, you will
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need to invalidate this bootblock.
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.Pp
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To do this you need to:
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.Bl -bullet
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.It
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Be absolutely sure you want to do this.
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.It
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Run
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.Ic bb_trash
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and follow the instructions.
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.El
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.Pp
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Ensure that this device is now not configured for RiscOS.
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.Pp
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You are now ready to boot
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.Nx
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and continue the installation.
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.Ss2 Running bb_riscbsd
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.Pp
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When you run this program, you will first be asked whether you are
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installing to an ADFS drive or a SCSI drive.
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You can just press
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.Ql A
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or
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.Ql S
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respectively.
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(The
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.Ic bb_riscbsd
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program assumes that you are using a
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non-Acorn SCSI card, so if you are using an Acorn card, then you may
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have to edit this program and replace
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.Ql SCSI_DiscOp
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with
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.Ql SCSIFS_DiscOp . )
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.Pp
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Then you will be asked which Disc you want to install
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.Nx
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on.
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This
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.Em must
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be the first Disc on the device.
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.Ic bb_riscbsd
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will now scrutinize the device and see how it has been laid out.
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.Pp
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It will then tell you how much of the device is occupied by RiscOS in
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cylinders, and you will then be asked for the
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.Nx
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starting cylinder.
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Normally you should just enter the number given to you
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since the RISC OS starting cylinder is 0 and therefore the last
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cylinder in use is one less than the figure given.
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If no figure is displayed, then your partitioning software failed to
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fill in the bootblock completely
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(it doesn't have to do this for you but most do)
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or you selected the wrong device.
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If you are convinced that this is the correct device then you must
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calculate a cylinder offset using the numbers noted down during
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partitioning (if it is not a whole number
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.Em always
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round up, you might waste a little of the device but
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it'll be safer).
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.Pp
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Make a note of this number.
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.Pp
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.Ic bb_riscbsd
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will make a backup of the original bootblock, but it
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can be non-trivial to put it back.
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.Ss2 Booting
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.Pp
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Now that your device is ready for the installation you need to
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unpack the bootloader archive,
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.Pa BtNetBSD.spk ,
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(If you're installing from CD-ROM then this should be unpacked already) and
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copy the directory to your hard disk.
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In the archive you'll find the tools
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mentioned in this document as well as the bootloader
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.Pa !BtNetBSD
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itself.
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.Ss2 Configuring the !BtNetBSD bootloader before installation
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Open the
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.Pa !BtNetBSD
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application and edit the
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.Pa fastboot
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file.
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.Pp
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You can set details like tweaking with the amount of memory in
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the WimpSlot of the bootloader when this is too much.
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Remember however that this shouldn't be set too low for it can crash
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the bootloader.
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.Pp
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When you think you've filled in the proper details save the file again
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and proceed.
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.Ss2 Booting the installation kernel
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.Pp
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Double click on the InstKern icon to start it
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up.
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.Pp
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.Nx
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should now start to boot, install
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.Nx
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as per the
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.Nx
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installation notes.
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.Pp
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When you finish the installation you can restarted the computer as
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instructed.
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.Ss2 Configuring !BtNetBSD after installation
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.Pp
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Open the
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.Pa !BtNetBSD
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application again and edit the
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.Pa fastboot
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file to fill in the normal kernel name.
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.Pp
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Specify the device
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.Nx
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should be looking for its kernel in.
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This is the
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.Ql "Run \*[Lt]BtNetBSD$Dir\*[Gt].native.mountufs ADFS 4"
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line that is there by default.
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See this document for other names.
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.Pp
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Set the kernel as
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.Pa UnixFS:$.netbsd .
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.Pp
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Save the file and run !BtNetBSD again (see above).
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.Pp
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Finally, when you are happy with your
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.Nx
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installation, do whatever
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is necessary to restore order to the partition you took space away from.
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This will most likely involve restoring files, but might involve some
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other
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.Dq house-work .
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.Pp
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Your hard disk is now prepared to have
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.Nx
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installed on it, and you should proceed with the installation instructions.
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