We recently upgraded our BackupPC servers to Ubuntu 10.04 Lucid Lynx. It’s working almost perfectly. However, the “Download ZIP archive” restore option no longer works. This is due to a bug in recent version of the Archive::Zip Perl module which generates corrupt ZIP archives.
Note to developers: when releasing new versions of your library, try to avoid breaking its core functionality.
If you try decompressing a corrupted file, you’ll see a message like this:
tyler@laptop:~$ unzip restore.zip
Archive: restore.zip
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.
unzip: cannot find zipfile directory in one of restore.zip or
restore.zip.zip, and cannot find restore.zip.ZIP, period.
I posted a solution on the mailing list. I’ve since uploaded an older version (1.18-1) of this package to my repository, so the process is even more streamlined.
If you are using my repo:
apt-get install libarchive-zip-perl=1.18-1
echo "libarchive-zip-perl hold" | dpkg --set-selections
If you aren’t using my repo but want a quick fix:
wget http://www.tolaris.com/apt/pool/main/liba/libarchive-zip-perl/libarchive-zip-perl_1.18-1_all.deb
dpkg -i libarchive-zip-perl_1.18-1_all.deb
echo "libarchive-zip-perl hold" | dpkg --set-selections
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I had exactly the same problem using Ubuntu 10.10 – and your solution worked fine. Thank you dave
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David,
You might want to use BackupPC 3.2.0. The package for Ubuntu 10.04 is in my repo. If you feel like testing it on 10.10, let me know and I’ll add it to the 10.10 repo. It’s just the package from Debian with some changed dependencies in the .deb file (no code changes from the source package).
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Thank you so much for posting this fix. I’m running Ubuntu 10.04.3 LTS and this has resolved the issue for me.
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Hi Mark,
I’ve also got a package for BackupPC 3.2.0 in my repo, which fixes this problem as well as others. I’ve been using it for over a year; it’s stable and works well. I advise you to upgrade.
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