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NetBSD/distrib/utils/sysinst/bsddisklabel.c

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/* $NetBSD: bsddisklabel.c,v 1.2 2000/03/14 22:42:48 fvdl Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
* All rights reserved.
*
* Based on code written by Philip A. Nelson for Piermont Information
* Systems Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Piermont Information Systems Inc.
* 4. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/* bsddisklabel.c -- generate standard BSD disklabel */
/* Included by appropriate arch/XXXX/md.c */
/* For the current state of this file blame abs@netbsd.org */
int make_bsd_partitions __P((void));
/*
* md back-end code for menu-driven BSD disklabel editor.
*/
int
make_bsd_partitions(void)
{
int i, part;
int remain;
char isize[20];
int maxpart = getmaxpartitions();
/*
* Initialize global variables that track space used on this disk.
* Standard 4.3BSD 8-partition labels always cover whole disk.
*/
ptsize = dlsize - ptstart;
fsdsize = dlsize; /* actually means `whole disk' */
fsptsize = dlsize - ptstart; /* netbsd partition -- same as above */
fsdmb = fsdsize / MEG;
/* Ask for layout type -- standard or special */
msg_display(MSG_layout,
(1.0*fsptsize*sectorsize)/MEG,
(1.0*minfsdmb*sectorsize)/MEG,
(1.0*minfsdmb*sectorsize)/MEG+rammb+XNEEDMB);
process_menu(MENU_layout);
if (layoutkind == 3) {
ask_sizemult(dlcylsize);
} else {
sizemult = MEG / sectorsize;
multname = msg_string(MSG_megname);
}
/* Build standard partitions */
emptylabel(bsdlabel);
/* Set initial partition types to unused */
for (part = 0 ; part < maxpart ; ++part)
bsdlabel[part].pi_fstype = FS_UNUSED;
/* We _always_ have a root partition */
bsdlabel[PART_ROOT].pi_fstype = FS_BSDFFS;
/* Whole disk partition */
bsdlabel[PART_RAW].pi_offset = 0;
bsdlabel[PART_RAW].pi_size = dlsize;
#ifdef PART_BSDRAW /* BSD area of the disk - only on some (i386) ports */
bsdlabel[PART_BSDRAW].pi_offset = ptstart;
bsdlabel[PART_BSDRAW].pi_size = fsptsize;
#endif
switch (layoutkind) {
case 1: /* standard: a root, b swap, c "unused", PART_USR /usr */
case 2: /* standard X: as above, but with larger swap */
partstart = ptstart;
/* Root */
partsize = NUMSEC(DEFROOTSIZE, MEG/sectorsize, dlcylsize);
bsdlabel[PART_ROOT].pi_offset = partstart;
bsdlabel[PART_ROOT].pi_size = partsize;
bsdlabel[PART_ROOT].pi_bsize = 8192;
bsdlabel[PART_ROOT].pi_fsize = 1024;
strcpy(fsmount[PART_ROOT], "/");
partstart += partsize;
/* swap */
i = NUMSEC(layoutkind * 2 *
(rammb < DEFSWAPRAM ? DEFSWAPRAM : rammb),
MEG/sectorsize, dlcylsize) + partstart;
partsize = NUMSEC(i/(MEG/sectorsize)+1, MEG/sectorsize,
dlcylsize) - partstart;
bsdlabel[PART_SWAP].pi_fstype = FS_SWAP;
bsdlabel[PART_SWAP].pi_offset = partstart;
bsdlabel[PART_SWAP].pi_size = partsize;
partstart += partsize;
/* /usr */
partsize = fsdsize - partstart;
bsdlabel[PART_USR].pi_fstype = FS_BSDFFS;
bsdlabel[PART_USR].pi_offset = partstart;
bsdlabel[PART_USR].pi_size = partsize;
bsdlabel[PART_USR].pi_bsize = 8192;
bsdlabel[PART_USR].pi_fsize = 1024;
strcpy(fsmount[PART_USR], "/usr");
break;
case 3: /* custom: ask user for all sizes */
ask_sizemult(dlcylsize);
/* root */
partstart = ptstart;
remain = fsdsize - partstart;
partsize = NUMSEC(DEFROOTSIZE, MEG/sectorsize, dlcylsize);
snprintf(isize, 20, "%d", partsize/sizemult);
msg_prompt(MSG_askfsroot, isize, isize, 20,
remain/sizemult, multname);
partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
/* If less than a 'unit' left, also use it */
if (remain - partsize < sizemult)
partsize = remain;
bsdlabel[PART_ROOT].pi_offset = partstart;
bsdlabel[PART_ROOT].pi_size = partsize;
bsdlabel[PART_ROOT].pi_bsize = 8192;
bsdlabel[PART_ROOT].pi_fsize = 1024;
strcpy(fsmount[PART_ROOT], "/");
partstart += partsize;
/* swap */
remain = fsdsize - partstart;
if (remain > 0) {
i = NUMSEC(2 *
(rammb < DEFSWAPRAM ? DEFSWAPRAM : rammb),
MEG/sectorsize, dlcylsize) + partstart;
partsize = NUMSEC(i/(MEG/sectorsize)+1, MEG/sectorsize,
dlcylsize) - partstart;
if (partsize > remain)
partsize = remain;
snprintf(isize, 20, "%d", partsize/sizemult);
msg_prompt_add(MSG_askfsswap, isize, isize, 20,
remain/sizemult, multname);
partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
if (partsize) {
/* If less than a 'unit' left, also use it */
if (remain - partsize < sizemult)
partsize = remain;
bsdlabel[PART_SWAP].pi_fstype = FS_SWAP;
bsdlabel[PART_SWAP].pi_offset = partstart;
bsdlabel[PART_SWAP].pi_size = partsize;
partstart += partsize;
}
}
/* /usr */
remain = fsdsize - partstart;
if (remain > 0) {
partsize = remain;
snprintf(isize, 20, "%d", partsize/sizemult);
msg_prompt_add(MSG_askfsusr, isize, isize, 20,
remain/sizemult, multname);
partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
if (partsize) {
/* If less than a 'unit' left, also use it */
if (remain - partsize < sizemult)
partsize = remain;
bsdlabel[PART_USR].pi_fstype = FS_BSDFFS;
bsdlabel[PART_USR].pi_offset = partstart;
bsdlabel[PART_USR].pi_size = partsize;
bsdlabel[PART_USR].pi_bsize = 8192;
bsdlabel[PART_USR].pi_fsize = 1024;
strcpy(fsmount[PART_USR], "/usr");
partstart += partsize;
}
}
/* Others ... */
remain = fsdsize - partstart;
if (remain > 0)
msg_display(MSG_otherparts);
part = PART_FIRST_FREE;
for (; remain > 0 && part < maxpart; ++part ) {
if (bsdlabel[part].pi_fstype != FS_UNUSED)
continue;
partsize = fsdsize - partstart;
snprintf(isize, 20, "%d", partsize/sizemult);
msg_prompt_add(MSG_askfspart, isize, isize, 20,
diskdev, partition_name(part),
remain/sizemult, multname);
partsize = NUMSEC(atoi(isize),sizemult, dlcylsize);
/* If less than a 'unit' left, also use it */
if (remain - partsize < sizemult)
partsize = remain;
bsdlabel[part].pi_fstype = FS_BSDFFS;
bsdlabel[part].pi_offset = partstart;
bsdlabel[part].pi_size = partsize;
bsdlabel[part].pi_bsize = 8192;
bsdlabel[part].pi_fsize = 1024;
msg_prompt_add(MSG_mountpoint, NULL, fsmount[part],
20);
partstart += partsize;
remain = fsdsize - partstart;
}
break;
}
/*
* OK, we have a partition table. Give the user the chance to
* edit it and verify it's OK, or abort altogether.
*/
edit_check:
if (edit_and_check_label(bsdlabel, maxpart, RAW_PART, RAW_PART) == 0) {
msg_display(MSG_abort);
return 0;
}
if (md_check_partitions() == 0)
goto edit_check;
/* Disk name */
msg_prompt(MSG_packname, "mydisk", bsddiskname, DISKNAME_SIZE);
/* save label to disk for MI code to update. */
(void) savenewlabel(bsdlabel, maxpart);
/* Everything looks OK. */
return (1);
}
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