[aclug-L] Re: File too short

[bbales <bbales@xxxxxxx>]

On Wednesday 04 February 2004 08:22, you wrote:

> > knoppix can't get to it.
>
> That is really strange, and I suspect that it's not actually the case;
> Knoppix may not mount it for you automatically, but I'd be quite
> surprised if it couldn't see it.  The only reason I could think of for
> that is if you're using an exotic filesystem of some sort -- but even
> then, I think Knoppix supports most filesystems.

Thanks very much for the help.
Well, I thought I had it.  Loaded knoppix, click on big K, then knoppix, then 
root-shell.  Got a terminal, 

mount /mnt/hda2  
cd /mnt/hda2
rm libc.so.6 
ls libc*           got nothing.  So libc.so.6 is gone.

Rebooted and got a new message: "cannot open shared file: libc.so.6: no such 
file or directory."  Here, I don't understand why it cares????

Back to knoppix.  Found RH-7.2 (on the sick box) contained libc-2.2.4.so.  As 
root:  ln libc-2.2.4.so libc.so.6

reboot and now message is libc.so.6: file too short.

Back on Knoppix - libc-2.2.4.so is an empty file.  So I copied it from another 
system to a floppy and tried to overwrite the one on the sick box. Message is 
"read-only file system."  Couldn't even copy it to my /home/bruce/ and got 
same answer - "read-only file system."

It appears that knoppix won't let me write or mkdir anywhere on the disk. 
Since permissions on the link were '777' , it did let me remove it and then 
create another link.  However /tmp has permissions of drwxrwxrwt, but I 
cannot copy to it or mkdir in it.

I tried copying the floppy file directly to /mnt/hda2/lib/libc.so.6, (since I 
was able to remove it, I thought I could replace it) but again got 'read-only 
filesystem.'

I'll try some of the other suggestions.  Thanks again for the help.
bruce

> You mentioned you had a working chroot... use it to cat the file
> /etc/fstab on your system, and note where "/" is mounted from.  Then, in
> Knoppix, try some commands like this:
>
> mkdir /foo
> mount /dev/hda4 /foo
>
> (Replace /dev/hda4 with the path to your root partition from fstab).
> Now:
>
> cp /lib/libc* /foo/lib
>
> Then, go into /foo/lib and make sure the link is correct like I
> mentioned above.  Finally:
>
> cd /
> umount /foo
>
> > Tried to upgrade with same cd (RH7.2) - it did the upgrade in about 10
> > minutes, but didn't change anything.  Still kernel panic
>
> It probably looked at the RPM database and concluded that the version of
> libc it was going to install is the same as the one on its CD.  You
> might want to try an actual newer version of RedHat... Or, if you can
> find the RPMs on the CD, try a command like this:
>
> rpm --root /sys/image -i libc.rpm
>
> > Everything but swap is on one partition and I'd sure like to save her
> > /home directory.
>
> If all else fails, I can give you instructions on copying that out from
> the rescue environment.
>
> > Any ideas how to remove the offending piece of a file?
>
> A couple :-)
>
> -- John
>
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