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Unbreak booting from the true dedicated disks.

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When we open the disk, check the type of partition table, that has
been detected. If this is BSD label, then we assume this is DD mode.

Reported by:	dim@
This commit is contained in:
Andrey V. Elsukov 2012-08-13 13:08:30 +00:00
parent 347c7fd7bf
commit 42b577fe76
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=239230
2 changed files with 14 additions and 3 deletions
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12
sys/boot/common/disk.c
View File

@ -173,7 +173,13 @@ disk_open(struct disk_devdesc *dev, off_t mediasize, u_int sectorsize)
rc = ENXIO;
goto out;
}
if (dev->d_slice > 0) {
if (ptable_gettype(od->table) == PTABLE_BSD &&
dev->d_partition >= 0) {
/* It doesn't matter what value has d_slice */
rc = ptable_getpart(od->table, &part, dev->d_partition);
if (rc == 0)
dev->d_offset = part.start;
} else if (dev->d_slice > 0) {
/* Try to get information about partition */
rc = ptable_getpart(od->table, &part, dev->d_slice);
if (rc != 0) /* Partition doesn't exist */
@ -247,9 +253,9 @@ disk_fmtdev(struct disk_devdesc *dev)
#ifdef LOADER_MBR_SUPPORT
cp += sprintf(cp, "s%d", dev->d_slice);
#endif
if (dev->d_partition >= 0)
cp += sprintf(cp, "%c", dev->d_partition + 'a');
}
if (dev->d_partition >= 0)
cp += sprintf(cp, "%c", dev->d_partition + 'a');
strcat(cp, ":");
return (buf);
}

5
sys/boot/common/disk.h
View File

@ -45,6 +45,11 @@
* d_slice = MBR slice number (typically 1..4)
* d_partition = disklabel partition (typically 0..7)
*
* BSD disklabel partition on the true dedicated disk:
*
* d_slice = -1
* d_partition = disklabel partition (typically 0..7)
*
* GPT partition:
*
* d_slice = GPT partition number (typically 1..N)