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LVM Filesystem Size Problem

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psicard

Post subject: LVM Filesystem Size Problem

Posted: Sun May 21, 2006 10:48 am

Joined: Mon Nov 28, 2005 10:44 am

Posts: 137

Location: Austin, TX

I had a hard drive that was part of an LVM volume group start having problems (probably due to excessive heat). So, I bought a replacement and tried to follow instructions on the Wiki to add a new drive, move everything off the bad drivel, and then remove the bad drive. I say tried because apparently I did something wrong.

Now when I boot, I get:

Code:

...
/dev/sdh15: open failed: no such device or address
Found volume group "vg" using metadata lvm2
/dev/vg: opendir failed: no such file or directory
1 logical volume(s) in volume group "vg" now active
Checking all file systems
fsck 1.36 (05-Feb-2005)
The filesystem size (according to the superblock) is 95942680 blocks.  The physical size of the device is 66639872 blocks.  Either the superblock or the partition table is likely to be corrupt.
myth: Unexpected inconsistency; Run fsck manually (i.e. without -a or -p options).
fsck failed.  Please repair manually.

If I try to run fsck, I get:

Code:

The filesystem size (according to the superblock) is 95942680 blocks.  The physical size of the device is 66639872 blocks.  Either the superblock or the partition table is likely to be corrupt. Abort<y>?n
Pass 1 Checking indoes blocks and sizes
Error reading block 66650114(invalid argument) while doing inode scan.  Ignore error<y>?

At this point, I I try no, fsck aborts after 2 no's.
If I try yes, I get:

Code:

Force rewrite<y>?

And then I get (literally) hundreds of similar questions as it goes through the "missing" blocks.

Then after Pass 5, I get hundreds of questions again:

Code:

Error reading block 66650114(Invald argument) while reading inode and block bitmaps.  Ignore error<y>? yes

Force rewrite<y>?

Then lots of number pairs fill the screen:

Code:

... +(95879168--95879170)  +(95911936--95911938)
Fix<y>? yes

myth: ***** FILE SYSTEM WAS MODIFIED ******
myth 26172/93696 files (23.1% non-contiguous), 24811618/95943680 blocks

Error writing block 95911937(Invalid argument) while writing block bitmaps.  Ignore error <y>?

If I "yes" everything, I eventually get to the shell prompt and there doesn't seem to be any change.

So then I tried:

Code:

resizefs -f /dev/vg/myth 66639872

and got:

Code:

Please run 'e2fsck -f /dev/vg/myth' first.

I've looked through the LVM HOWTO pages (http://www.tldp.org/HOWTO/LVM-HOWTO/) and googled trying to find what else I can try (except reformatting and losing everything on the volume group) with no luck.

That may be too much info, but better too much than not enough...

Anyone have any suggestions?

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cesman

Post subject:

Posted: Sun May 21, 2006 10:13 pm

Joined: Fri Sep 19, 2003 7:05 pm

Posts: 5088

Location: Fontana, Ca

Which fs (etx3, xfs, etc) did you use to format /dev/vg/myth? Depending on the fs, you cann resize it...

_________________
cesman

When the source is open, the possibilities are endless!

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psicard

Post subject:

Posted: Tue May 23, 2006 12:03 pm

Joined: Mon Nov 28, 2005 10:44 am

Posts: 137

Location: Austin, TX

It's ext3.

Sorry- I wasn't clear about this in my original post...
I tried

Code:

resize2fs -f /dev/vg/myth 66639872

and got

Code:

Please run 'e2fsck -f /dev/vg/myth' first.

After getting through e2fsck (as described in my original post), I tried resize2fs again and got the same response.

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