** Also affects: apt (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Description changed:

- 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.
+ Test case:
+ - generate a cachedb with apt-ftparchive from lucid via
+    apt-ftparchive --db old-db 2vcard_0.5-3_all.deb
+ - use apt-ftparchive from precise and run
+    apt-ftparchive --db old-db 2vcard_0.5-3_all.deb
+   and verify that the hashsums are no longer correct
+ - use apt-ftparchive from precise-proposed and run:
+     apt-ftparchive --db old-db 2vcard_0.5-3_all.deb
+   and verify that the hashes are correct now
+ 
+ 
+ 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.

** Changed in: apt (Ubuntu Precise)
       Status: New => In Progress

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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

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