Date: Thu, 15 Dec 2005 15:42:24 +0100 From: Roberto Nunnari <roberto.nunnari@supsi.ch> To: "Harley D. Eades III" <hde@foobar-qux.org> Cc: Micah <micahjon@ywave.com>, "roberto .nunnari"@supsi.ch, "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: Re: grub doesn't know ufs filesystem Message-ID: <43A180D0.4070105@supsi.ch> In-Reply-To: <1134584001.34653.8.camel@devilBSD.freeBSD> References: <43A031B1.2030105@supsi.ch> <43A04A05.3060504@ywave.com> <1134584001.34653.8.camel@devilBSD.freeBSD>
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One more note.. let's call 'bad' the pc that grub doesn't
like and ok the others.. and note that the two pc have
identical disk drives.. so..
bad# fdisk
******* Working on device /dev/ad0 *******
parameters extracted from in-core disklabel are:
cylinders=29777 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=29777 heads=16 sectors/track=63 (1008 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 30009357 (14653 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 254/ sector 63
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
ok# fdisk
******* Working on device /dev/ad0 *******
parameters extracted from in-core disklabel are:
cylinders=29777 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=29777 heads=16 sectors/track=63 (1008 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 30009357 (14653 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 3/ sector 63
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
as you can see, there's a difference in the end head..
bad says end head is 254, while ok says end head is 3
Could that be a source of trouble?
bad# disklabel ad0s1
# /dev/ad0s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 524288 0 4.2BSD 2048 16384 32776
b: 1048576 524288 swap
c: 30009357 0 unused 0 0 # "raw" part,
don't edit
d: 524288 1572864 4.2BSD 2048 16384 32776
e: 524288 2097152 4.2BSD 2048 16384 32776
f: 27387917 2621440 4.2BSD 2048 16384 28552
ok# disklabel ad0s1
# /dev/ad0s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 524288 0 4.2BSD 2048 16384 32776
b: 996992 524288 swap
c: 30009357 0 unused 0 0 # "raw" part,
don't edit
d: 524288 1521280 4.2BSD 2048 16384 32776
e: 524288 2045568 4.2BSD 2048 16384 32776
f: 27387917 2569856 4.2BSD 2048 16384 28552
the disklabel is essentialy the same.. apart from the
size of the swap and consequently the offset of the
rest of the internal partitions..
Again.. any ideas?
--
Robi
Harley D. Eades III wrote:
> On Wed, 2005-12-14 at 08:36 -0800, Micah wrote:
>
>>Roberto Nunnari wrote:
>>
>>>Hello list.
>>>
>>>Please also reply to my mailbox, as I'm not on the list.
>>>Thank you.
>>>
>>>I have a old grub floppy that I use time to time to
>>>boot/recover pc with different OS.. Today I wanted to
>>>boot a freebsd 5.3-RELEASE-p23 box, but to my surprise
>>>grub reported:
>>>
>>>Filesystem type unknown, partition type 0xa5
>>>
>>>and thus cannot mount /boot/loader
>>>
>>>So I thought I'd make a grub floppy with a recent version,
>>>but even with version 0.97 things won't change..
>>>
>>># cd /usr/ports/sysutils/grub
>>># make install
>>># grub
>>> [ Minimal BASH-like line editing is supported. For the first word, TAB
>>> lists possible command completions. Anywhere else TAB lists the
>>>possible
>>> completions of a device/filename. ]
>>>
>>>grub> root (hd0,0,a)
>>> Filesystem type unknown, partition type 0xa5
>>>
>>>grub> kernel /boot/loader
>>>
>>>Error 17: Cannot mount selected partition
>>>
>>>grub> root (hd0, <TAB>
>>> Possible partitions are:
>>> Partition num: 0, [BSD sub-partitions immediately follow]
>>> BSD Partition num: 'a', Filesystem type unknown, partition type 0xa5
>>> BSD Partition num: 'b', Filesystem type unknown, partition type 0xa5
>>> BSD Partition num: 'd', Filesystem type unknown, partition type 0xa5
>>> BSD Partition num: 'e', Filesystem type unknown, partition type 0xa5
>>> BSD Partition num: 'f', Filesystem type unknown, partition type 0xa5
>>>
>>>grub> quit
>>>
>>># mount
>>>/dev/ad0s1a on / (ufs, local, soft-updates)
>>>devfs on /dev (devfs, local)
>>>/dev/ad0s1e on /tmp (ufs, local, soft-updates)
>>>/dev/ad0s1f on /usr (ufs, local, soft-updates)
>>>/dev/ad0s1d on /var (ufs, local, soft-updates)
>>>linprocfs on /usr/compat/linux/proc (linprocfs, local)
>>>devfs on /var/named/dev (devfs, local)
>>>
>>>Any hint/thought/advice?
>>>
>>>Best regards.
>>
>>I just installed grub from ports and duplicated your test and it works
>>fine. I'd start by checking your installation and making sure you don't
>>have any other grubs in your path. Some of the grubs that ship with
>>Linux distros do not support ufs. Do a find/locate on grub to see what
>>turns up. Do a which grub, you should get /usr/local/sbin/grub. If
>>not, issue /usr/local/sbin/grub from a command prompt and duplicate your
>>test. If that's broken, make sure your ports tree is up to date, make
>>sure /usr/ports/devel/autoconf259 /usr/ports/devel/automake19
>>/usr/ports/devel/gmake are up to date (grub's build dependancies) then
>>deinstall, clean, and reintsall the grub port.
>>
>>
>>HTH,
>>Micah
>>_______________________________________________
>>freebsd-questions@freebsd.org mailing list
>>http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>>To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
>
>
> I can second this, I use grub all the time, as well as test grub2 on
> FreeBSD and both work great for me.
>
> --Harley
> -----BEGIN GEEK CODE BLOCK-----
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