Help recovering damaged .tar file

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3 total messages Started by veenu.r.rashid Sat, 26 Dec 1992 19:38

#2010

Author: veenu.r.rashid
Date: Sat, 26 Dec 1992 19:38

27 lines
1016 bytes

Is there any way to do this?  My .tar.Z file comes up with an
error halfway through:

Directory checksum:  1089 != 27893

or something like this (made up the numbers).  Can I uncompress
the tar file and fix it somehow?  (I just want to skip the bad
block or the bad file and read the rest of the files).

This came up while reading from a bad floppy... the file copies
but the data is corrupted.  Is there a way to fix the floppy?
I tried running:

root% fsck /dev/fd0a


but this didn't seem to do anything.


Please email me with tips, suggestions or a step by step method


Thanks,
Veenu

vrr@cbnewsj.att.com

Re: Help recovering damaged .tar file

#2012

Author: Christopher Rath
Date: Sat, 26 Dec 1992 23:12

11 lines
1076 bytes

I have used tar-mode.el for emacs to fix tar files.  I forced a change to
each filename in the file, in dired mode, in order to cause emacs to 
recalculate the checksums.

best of luck,
Christopher
--
 Christopher Rath   | crath@bnr.ca
 BNR Lab 5          |
 Ottawa, ON, Canada | "Hydrogen is a colourless, odourless gas which, given 
 (613) 765-3141     | enough time, turns into people." -- Henry Hiebert

Re: Help recovering damaged .tar file

#2015

Author: veenu.r.rashid
Date: Sun, 27 Dec 1992 03:30

39 lines
1347 bytes

>
>Is there any way to do this?  My .tar.Z file comes up with an
>error halfway through:
>
>Directory checksum:  1089 != 27893
>
>or something like this (made up the numbers).  Can I uncompress
>the tar file and fix it somehow?  (I just want to skip the bad
>block or the bad file and read the rest of the files).
>

Actually the problem is while uncompressing the file.  Raw
'uncompress' on the file gives the following messages:

uncompress: corrupt input
memory allocation error: attempt to free or realloc space not in heap
bad zone

-----
Is there anything anyone can do with this?

>This came up while reading from a bad floppy... the file copies
>but the data is corrupted.  Is there a way to fix the floppy?
>I tried running:
>
>root% fsck /dev/fd0a
>
>
>but this didn't seem to do anything.
>
>
>Please email me with tips, suggestions or a step by step method
>
>
>Thanks,
>Veenu
>
>vrr@cbnewsj.att.com
>

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