Ubuntu
linux package

  1. Bug #1292234
  2. Comment #25

Comment 25 for bug 1292234

Revision history for this message
Chris J Arges (arges) wrote : Re: qcow2 image corruption in trusty (qemu 1.7 and 2.0 candidate)

$ od -x -N 72 forhallyn-trusty-amd64.img.corrupted | grep '[1-9]*'
refcount_table_cluster 0000 0100
0000000 4651 fb49 0000 0200 0000 0000 0000 0000
0000020 0000 0000 0000 1000 0000 0200 0000 0000
0000040 0000 0000 0000 1000 0000 0000 0300 0000
0000060 0000 0000 0100 0000 0000 0100 0000 0100
0000100 0000 0000 0500 0000

nb_snapshots = 0000 0100
snapshots_offset = 0000 0000 0500 0000

$ od -x -N 72 forhallyn-trusty-amd64.img | grep '[1-9]*'
0000000 4651 fb49 0000 0200 0000 0000 0000 0000
0000020 0000 0000 0000 1000 0000 0200 0000 0000
0000040 0000 0000 0000 1000 0000 0000 0300 0000
0000060 0000 0000 0100 0000 0000 0100 0000 0000
0000100 0000 0000 0000 0000

nb_snapshots = 0000 0000
snapshots_offset = 0000 0000 0000 0000

Looking at just the QCowHeader (and not de-scrambling BE format), I see the following differences; however I think this looks 'ok', I'll need to examine the rest of the file.