126 lines
4.6 KiB
Plaintext
126 lines
4.6 KiB
Plaintext
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NOTE: These instructions are explicitly for installing NetBSD
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from an HP-UX system, version 7 or later. It has not been
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tested with HP-UX versions earlier than 7, and has also not
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been tested with HP-UX 8, although it is presumed to work.
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For the creative, similar steps may be taken from a system such
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as Utah's 4.3BSD release for the hp300, although bootstrapping
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from such a system has not been tested.
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Bootstrapping the hp300 is a complicated process, but it's a lot
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easier than it used to be. For this process you need the
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following items from the install/ directory:
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boot NetBSD/hp300 boot block for
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HP-IB and SCSI disks
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rootimage.gz bootstrap root filesystem
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image
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label prototype disk label
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makedisk a program for HP-UX that will
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write a NetBSD disk label,
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boot block, and root filesystem
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image to the target disk
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(NOTE: This is an HP-UX 7.x binary.
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while it will work under HP-UX 9.x,
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you may want to compile this yourself.
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The source may be found in makedisk.tar.gz)
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VERY IMPORTANT NOTE: This procedure will destroy all data on the
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target disk. Because NetBSD uses a different filesystem format than
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HP-UX, your old data will be useless. If you wish to save anything,
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use tar(1) instead of dump(1M), again because of filesystem differences.
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First of all, you must have a second disk on which to install NetBSD.
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If possible, this disk should first be prepared with mediainit(1M).
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Once this disk is spotless, you should generate a disk label for it.
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Using the prototype label provided, fill in all of the necessary
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information. Remember, if you derive geometry information from an
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HP-UX disktab, your partition size will be off. This is because HP-UX
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uses a 1024-byte sector size, while NetBSD uses a 512-byte sector size.
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To avoid the problem, you may simply double the number of cylinders.
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(That's what I do...works great. -- JRT)
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IMPORTANT: Partition 'a' must be offset one cylinder. Since
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partition information is expressed in sectors, the offset of
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partition 'a' must be the value of `sectors/cylinder'. This is
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to leave room for the boot block.
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When you create your disklabel, be sure to specify whether or not
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the disk is HP-IB or SCSI in the `type:' field.
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Below is an example of what a disk label should look like. This
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is an example only! Do not attempt this at home!
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# Sample disklabel for example only. This is a comment.
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type: HP-IB
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disk:
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label: INSTALL-1_0
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flags:
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bytes/sector: 512
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sectors/track: 36
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tracks/cylinder: 7
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sectors/cylinder: 252
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cylinders: 1013
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rpm: 3600
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interleave: 1
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trackskew: 0
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cylinderskew: 0
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headswitch: 0 # milliseconds
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track-to-track seek: 0 # milliseconds
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drivedata: 0
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7 partitions:
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# size offset fstype [fsize bsize cpg]
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a: 30744 252 4.2BSD 1024 8192 16 # (Cyl. 1 - 122)
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b: 32760 30996 swap # (Cyl. 123 - 252)
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c: 255276 0 boot # (Cyl. 0 - 1012)
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e: 20412 63756 4.2BSD 1024 4096 16 # (Cyl. 253 - 333)
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f: 40824 84168 4.2BSD 1024 8192 16 # (Cyl. 334 - 495)
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g: 130284 124992 4.2BSD 1024 8192 16 # (Cyl. 496 - 1012)
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NOTE: Due to the nature of the bootstrapping procedure, your 'a'
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partition must be at least 30744 sectors long. Increase the size of
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your 'a' partition just enough to make it end on a cylinder boundary.
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If you make it any larger, you will just be wasting space, as the
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filesystem ends after 30744 sectors.
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Remember to write down the names of the partitions and what you
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will be using them for (i.e. 'a - root, b - swap, e - /usr, etc.')
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as you will need this information later on in the installation
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process.
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Once you are satisfied with your disklabel, you can write the
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root filesystem image to the target disk. Use the `makedisk'
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program for this. So, under HP-UX, do:
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./makedisk /dev/rdsk/c7d0s0 mylabel boot rootimage.gz
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where:
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/dev/rdsk/c7d0s0 raw flavor of target disk device
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mylabel disk label you just wrote
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boot supplied boot block
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rootimage.gz gzipped root filesystem image
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NOTE: This requires that gzip be
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installed on your HP-UX system.
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If it is not, a gzip binary is
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provided in the install/ directory.
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Source for gzip may be found in the
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gsrc10 distribution set. Again, this
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gzip is an HP-UX 7.x binary.
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If you wish to label any additional disks, you will have to do this
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from NetBSD, although you will not have an editor at your disposal.
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To do this, simply generate the labels now, and then grab them at
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the same time and by the same method you use to grab the distrubtion
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sets.
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Once this is done, you should be ready to boot NetBSD from the target
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disk.
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