1 |
-----BEGIN PGP SIGNED MESSAGE----- |
2 |
Hash: SHA1 |
3 |
|
4 |
Doug ONeal wrote: |
5 |
> I have had a problem dumped on me that I cannot resolve. A user |
6 |
> archived some very large |
7 |
> datasets using Info-zip (app-arch/zip-2.32-r1) and the original data has |
8 |
> been deleted. The zip |
9 |
> executable is a 64-bit binary and the user assumed that large archives |
10 |
> were possible. A typical |
11 |
> archive is on the order of 70GB and the largest is over 200GB |
12 |
> (compressed sizes). /usr/bin/zip did |
13 |
> not complain about creating the archive and /usr/bin/unzip -l lists the |
14 |
> contents correctly so the user |
15 |
> did not think there were any problems until it came time to extract a |
16 |
> file. Extracting any file that |
17 |
> is past the 4GB mark in the archive results in a 'bad zipfile offset' |
18 |
> error. This is consistent with the |
19 |
> FAQ on Info-zip's web site. |
20 |
> |
21 |
> I am guessing that all of the data is actually present in the zip |
22 |
> archives but I cannot get to it. Trying |
23 |
> version 3.0 of info-zip or any of the other linux & windows unzip |
24 |
> programs has not been successful |
25 |
> in extracting any of the later files in the archives. I'm at a loss; |
26 |
> does anybody have suggestions on |
27 |
> how to retrieve this data? Thanks. |
28 |
|
29 |
The second thought that springs to would be be having a look at the |
30 |
source code for unzip and seeing if you can tweak the "zipfile offset" |
31 |
to allow for larger values than normal. |
32 |
|
33 |
Assuming the data is there and correctly compressed, it should just be a |
34 |
matter of getting the program to read it. |
35 |
|
36 |
RobbieAB |
37 |
-----BEGIN PGP SIGNATURE----- |
38 |
Version: GnuPG v2.0.11 (GNU/Linux) |
39 |
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org |
40 |
|
41 |
iEYEARECAAYFAkpDgAYACgkQZr0UhZgPVmya5QCePiJfsPo60LXuSh2d4RUj5CHv |
42 |
BZcAn2Y9UUm42oAfd2IXj8RiqQcrXDc0 |
43 |
=Yeml |
44 |
-----END PGP SIGNATURE----- |