-* long mail*- U have been warned :-)
I know i started this thread... but i got my answers, and I guess it may
help someone .....
this is a really strange error. I finally got down to the bottom of this
>From all the searching i got this in brief.
for those who want more details... do a search from google/linux for
"ext2_check_descriptors group descriptors corrupted"
-
the problem seems to have surfaced sometime after the release of the 2.2
series kernel . Not specific to any distro . Various explainations...
basically random error usually related to new / development drivers (
motherboard chipset, udma...)
> On Wed, 12 Dec 2001, Mayuresh Bakshi wrote:
> > second time without luck... Now I am using another hard disk on primary
to
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From: "Vinay Pai" <[EMAIL PROTECTED]>
>1. What error does it give if you try to boot from the partition?
ref. to my earlier mail...
>2. Does fsck pass? Even if you force a check with -f?
no it fails... doesn't even start actually .. its no good.
>3. What about badblocks?
doesn't do much..
it can't
reason being. this : "Block Bitmap for group 0 not in group" & "group
descriptors corrupted" errors.
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the filesystem reports as being unformatted ( cannot mount "/") ( from
rescue disk)
now when you format a disk.. as usual superblock backups are stored at
veriuos locations inside the Hdd. mke2fs usually spits out a series of
numbers related to where it has stored these backups.. _ SAVE THIS _
most ignore.
i recovered my data in this fashion (e2fsck promts for this) " e2fsck -b
327680 /dev/hda5"
where the number is the stored location & -b forces it to look@ this block.
( then run fsck... a few till you get it clean !)
my filestystem was stored with 4096 block size. that number (327680 ) is
basically a multiple of 80.
so you will have to try starting from block 1 ( useless now b/c if it was
working .. u wouldn't be trying this.) in multiples of your filesystem. from
what I gather its not stored at each multiple... but at a few of them.
long & tediuos perhaps.. but serves you . .... me ? :-) right for not
storing those superblock backups.
( for those of you giggling away... no I did not do this 80 times... )
if that doesn't work... my guess is... Format
:-)
C'ya
Erle.
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