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Date: Fri, 7 Nov 2003 08:28:23 +0200
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Hi,
The quick story: after a change of the MB from a GA-7VT600 1393
to a GA-7VT600-L, both with VIA Apollo KT600 / 8237 cipset, my
system's preen fsck can't find the superblock on partitions other that
/ As far as I can say the fs where clean (note however that / was
mounted read-only AFAIR).
I've googled around half a day and the hole night with no luck. The
system was first on a KT400/8235 mobo and i've moved it with no
real problem. What is different now ? It has been installed with the
defaults newfs options.
Questions:
1. in-core disklabel means what is read from the disk ?
2. The sizes are OK, the root slice is OK and I can use it, the first
FAT32 XP partition is OK and I can boot XP, what makes the diference
between / and the others ?
3. If the slightly different BIOS is to blame, how to make the newfs
when installing so that I will not have this problem again in the
future ?
4. Besides McKusick's paper from 44doc what other sources of
information on ufs are there ?
5. And, of course :-/ , how to get my data back ?
I can provide a dumpfs and/or ffsinfo, if someone cares to see them
(btw, they still are in 5.1 ? as in the on-line man pages thy are not)
#fsck -p
/dev/ad0s2a: FILESYSTEM CLEAN; SKIPPING CHECKS
/dev/ad0s2a: clean, 89827 free (715 frags, 11139 blocks, 0.6%
fragmentation)
Cannot find file system superblock
/dev/ad0s2e: CAN'T CHECK FILE SYSTEM.
/dev/ad0s2e: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
/dev/ad0s2e: CANNOT SEEK BLK: -1
/dev/ad0s2e: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
Cannot find file system superblock
/dev/ad0s2f: CAN'T CHECK FILE SYSTEM.
/dev/ad0s2f: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
/dev/ad0s2f: CANNOT SEEK BLK: -1
/dev/ad0s2f: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
Cannot find file system superblock
/dev/ad0s2d: CAN'T CHECK FILE SYSTEM.
/dev/ad0s2d: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
Cannot find file system superblock
/dev/ad0s2g: CAN'T CHECK FILE SYSTEM.
/dev/ad0s2g: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
/dev/ad0s2g: CANNOT SEEK BLK: -1
/dev/ad0s2g: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
A fsck -t ufs ad0s2d gives:
** /dev/ad0s2d
Cannot find file system superblock
/dev/ad0s2d: INCOMPLETE LABEL: type 4.2BSD fsize 0, frag 0, cpg 0,
size 1048576
and fsck_ffs -b 32 isn't of much help either.
*** Working on device /dev/ad0 ***
parameters extracted from in-core disklabel are:
cylinders=232578 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=232578 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 12 (0x0c),(DOS or Windows 95 with 32 bit FAT (LBA))
start 63, size 61432497 (29996 Meg), flag 0
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 254/ sector 63
The data for partition 2 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 61432560, size 173003985 (84474 Meg), flag 80 (active)
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 254/ sector 63
The data for partition 3 is:
UNUSED
The data for partition 4 is:
UNUSED
# /dev/ad0s2:
8 partitions:
#size offsetfstype [fsize bsize bps/cpg]
a: 52428804.2BSD0 0 0
b: 4194304 524288 swap
c: 1730039850unused0 0 # raw part,
don't edit
d: 1048576 47185924.2BSD0 0 0
e: 1048576 57671684.2BSD0 0 0
f: 104857600 68157444.2BSD0 0 0
g: 61330641 1116733444.2BSD0 0 0
The BIOS - LBA reads 14593/255/63 and in dmesg, next to ad0 it is
232578/16/63.
If I'm booting with the live CD I get:
Offset Size(ST) End
0.63...1
63...6143249761432559 ad0s1
61462560..173003985.23443644ad0s2
234436545..2990234439543unused
and the geometry 14593/255/63
Bellow is the tail of boot -v.
ata0: pre reset mask=03 ostat0=50 ostat2=00
ata0-master: ATAPI 00 00
ata0-slave: ATAPI 00 00
ata0: after reset mask=03 stat0=50 stat1=00
ata0-master: ATA 01 a5
ata0: devices=01
ata0 at port 0x3f6,0x1f0-0x1f7 irq 14 on isa0
ata1: pre reset mask=03 ostat0=50 ostat2=50
ata1-master: ATAPI 14 eb
ata1-slave: ATAPI 00 00
ata1: after reset mask=03 stat0=00 stat1=50
ata1-slave: ATA 01 a5
ata1: devices=06
ata1 at port 0x376,0x170-0x177 irq 15 on isa0
bt0: not probed (disabled)
cs0: not probed (disabled)
ed0: not probed (disabled)
fe0: not
