On 5/6/06, Tony Abernethy <[EMAIL PROTECTED]> wrote:
Me, I'd take a closer look at that j OpenBSD partition.
It does NOT look like it corresponds to anything in the DOS partitions.
Whether or not you redo the disklabel from scratch,
the critical operation is writing the disklabel back.
This is a place where any slipup, any typo, can do incredible damage.
(This is from somebody who LIKES to play with overlapping partitions;)
$ sudo fdisk wd0
Password:
Disk: wd0 geometry: 4864/255/63 [78140160 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
------------------------------------------------------------------------
0: 12 0 1 1 - 382 254 63 [ 63: 6152832 ] Compaq Diag.
1: 0C 383 0 1 - 2597 254 63 [ 6152895: 35583975 ] Win95 FAT32L
*2: A6 2598 0 1 - 3930 254 63 [ 41736870: 21414645 ] OpenBSD
3: 0C 3931 0 1 - 4862 254 63 [ 63151515: 14972580 ] Win95 FAT32L
16 partitions:
# size offset fstype [fsize bsize cpg]
a: 20761146 41736870 4.2BSD 2048 16384 328 # Cyl 41405*- 62001
b: 653499 62498016 swap # Cyl 62002 - 62650*
c: 78140160 0 unused 0 0 # Cyl 0 - 77519
i: 6152832 63 unknown # Cyl 0*- 6104*
j: 35583975 6152895 MSDOS # Cyl 6104*- 41405*
j is the same as partition 1, the windows install.
>
> Then create the mount point directory that you want this
> filesystem on,
> if you haven't already done so, then edit your fstab with your favorite
> editor. Copy and put the mount line from the existing FAT filesystem,
> then edit the copy's mount directory and slice entries to match the
> slice you defined (in this example, "wd0k").
>
> Then reboot to test your changes. Yeah, you could do a "mount
> /mount_point", but it's better to reboot to make sure you get your
> changes on the next reboot now than when it's really inconvenient
> to do so.
>
> > So long as you are only messing with the disklabel you shouldn't be
> > able to destroy your data (well, data on the windows drives at least)
> >
> This is misleading. The OpenBSD disklabel is EVERYTHING to
> that OS,
> you screw it up, game over. It is very possible to toast a FAT32 if
> you don't get the disklabel set up right. Anytime you mod the i386
> partition table or the disklabel assume you might toast EVERYTHING on
> the drive. That is, have backups, especially if you're learning
> this stuff.
True, misleading. I was thinking "you shouldn't be able to actually
destroy any data [so long as you realize your mistake in time]"
> Then again, if the OP only adds one line, rather than rekey the WHOLE
> DISKLABEL as you are suggesting, this shouldn't be a problem to OpenBSD.
>
Right, that was stupid of me.
