NetBSD/distrib/utils/sysinst/bsddisklabel.c

385 lines
11 KiB
C

/* $NetBSD: bsddisklabel.c,v 1.6 2002/08/02 05:11:29 grant 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 (void);
/*
* md back-end code for menu-driven BSD disklabel editor.
*/
int
make_bsd_partitions(void)
{
int i, part;
int freepart;
int remain;
char isize[20];
int maxpart = getmaxpartitions();
struct disklabel l;
int varsz = 0, swapsz = 0;
/*
* Initialize global variables that track space used on this disk.
* Standard 4.4BSD 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
md_set_sizemultname();
/* 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;
bsdlabel[PART_ROOT].pi_bsize = 8192;
bsdlabel[PART_ROOT].pi_fsize = 1024;
/* 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, and more
* space in /usr */
partstart = ptstart;
/*
* Defaults:
* root - always (PART_ROOT)
* swap - ask, default (PART_SWAP)
* /usr - ask, default (PART_USR)
* /var - ask (PART_FIRST_FREE != PART_USR)
* /home - ask (PART_FIRST_FREE+1 != PART_USR)
* /tmp - ask mfs
*/
layout_swap = layout_usr = 1;
layout_var = layout_home = layout_tmp = 0;
freepart = PART_FIRST_FREE;
process_menu(MENU_layoutparts);
/* Root */
if (layout_usr == 0 && layout_home == 0) {
if (layout_swap) {
i = NUMSEC(layoutkind * 2 *
(rammb < DEFSWAPRAM ? DEFSWAPRAM : rammb),
MEG/sectorsize, dlcylsize);
swapsz = NUMSEC(i/(MEG/sectorsize)+1,
MEG/sectorsize, dlcylsize);
}
if (layout_var)
varsz = NUMSEC(DEFVARSIZE, MEG/sectorsize,
dlcylsize);
partsize = ptsize - swapsz - varsz;
} else if (layout_usr)
partsize = NUMSEC(DEFROOTSIZE, MEG/sectorsize,
dlcylsize);
else if (layoutkind == 2)
partsize = NUMSEC(STDNEEDMB + XNEEDMB, MEG/sectorsize,
dlcylsize);
else
partsize = NUMSEC(STDNEEDMB, 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;
#if notyet
if (partstart > ptsize)
error ...
#endif
/* swap */
if (layout_swap) {
if (swapsz)
partsize = swapsz;
else {
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;
#if notyet
if (partstart > ptsize)
error ...
#endif
}
/* var */
if (layout_var) {
if (varsz)
partsize = varsz;
else
partsize = NUMSEC(DEFVARSIZE, MEG/sectorsize,
dlcylsize);
bsdlabel[freepart].pi_fstype = FS_BSDFFS;
bsdlabel[freepart].pi_offset = partstart;
bsdlabel[freepart].pi_size = partsize;
bsdlabel[freepart].pi_bsize = 8192;
bsdlabel[freepart].pi_fsize = 1024;
strcpy(fsmount[freepart++], "/var");
if (freepart == PART_USR)
freepart++;
partstart += partsize;
#if notyet
if (partstart > ptsize)
error ...
#endif
}
/* /usr */
if (layout_usr) {
if (layout_home) {
if (layoutkind == 2)
partsize = NUMSEC(DEFUSRSIZE + XNEEDMB,
MEG/sectorsize, dlcylsize);
else
partsize = NUMSEC(DEFUSRSIZE,
MEG/sectorsize, dlcylsize);
} else
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");
partstart += partsize;
#if notyet
if (partstart > ptsize)
error ...
#endif
}
/* home */
if (layout_home) {
partsize = fsdsize - partstart;
bsdlabel[freepart].pi_fstype = FS_BSDFFS;
bsdlabel[freepart].pi_offset = partstart;
bsdlabel[freepart].pi_size = partsize;
bsdlabel[freepart].pi_bsize = 8192;
bsdlabel[freepart].pi_fsize = 1024;
strcpy(fsmount[freepart++], "/home");
if (freepart == PART_USR)
freepart++;
partstart += partsize;
#if notyet
if (partstart > ptsize)
error ...
#endif
}
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;
case 4: /* use existing disklabel */
if (get_real_geom(diskdev, &l) == 0) {
msg_display(MSG_abort); /* XXX more informative */
return 0;
}
for (i = 0; i < maxpart; i++) {
#define p l.d_partitions[i]
bsdlabel[i].pi_size = p.p_size;
bsdlabel[i].pi_offset = p.p_offset;
if (i != RAW_PART) {
bsdlabel[i].pi_fstype = p.p_fstype;
bsdlabel[i].pi_bsize = p.p_fsize * p.p_frag;
bsdlabel[i].pi_fsize = p.p_fsize;
/* menu to get fsmount[] entry */
#undef p
} else
bsdlabel[i].pi_fstype = FS_UNUSED;
}
msg_display(MSG_postuseexisting);
getchar();
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);
}