The Precise Pangolin has reached end of life, so this bug will not be
fixed for that release
** Changed in: apt (Ubuntu Precise)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/1274466
Title:
apt-ftparchive on-disk cache format changed between lucid and precise,
results in Packages files with silently corrupted checksums fields
Status in apt package in Ubuntu:
Fix Released
Status in apt source package in Precise:
Won't Fix
Status in apt source package in Trusty:
Triaged
Bug description:
[Impact]
The archive.ubuntu.com master server has just been upgraded from lucid
to precise. As a result, the apt version went from 0.7.25.3 to
0.8.16~exp12, and apparently some time in that interval the on-disk
format of apt-ftparchive's cache changed.
This wouldn't be a problem, except apt-ftparchive itself doesn't
*notice* that the cache format has changed, and instead happily reads
the existing files and parses them incorrectly, resulting in corrupted
checksums output in the Packages file for each of the .debs.
apt-ftparchive should version its file formats so that it correctly
notices incompatible cache files.
[Test Case]
* generate a cachedb with apt-ftparchive from lucid via
apt-ftparchive --db old-db packages 2vcard_0.5-3_all.deb > Packages.1
* use apt-ftparchive from precise and run
apt-ftparchive --db old-db packages 2vcard_0.5-3_all.deb > Packages.2
and verify that it generates different hashes than Packages.1
(diff -u Packages.1 Packages.2)
* use apt-ftparchive from precise-proposed and run:
apt-ftparchive --db old-db packages 2vcard_0.5-3_all.deb > Packages.3
and verify that the hashes are identical to the ones in Packages.1
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