Verified Proposed:
dd if=/dev/zero of=source-disk.img bs=1M count=4096
qemu-img convert -f raw -o subformat=fixed -O vpc source-disk.img
dest-disk-old.vhd
#upgrade
$qemu-img convert -f raw -o subformat=fixed -O vpc source-disk.img
dest-disk-new.vhd
$qemu-img convert -f raw -o subformat=fixed,force_size -O vpc source-disk.img
dest-disk-new-forced.vhd
#check alignment:
$ stat dest-disk-old.vhd dest-disk-new.vhd dest-disk-new-forced.vhd | awk '/^
*Size:/ {print ($2-512)/1024/1024}'
4096.48
4096.48
4096
That means:
1. without adding the new parm no behaviour change (good since it is SRU)
2. with the force_size parm the size is aligned
That is enough for verification, but it would be even greater if that
could also be tested on real azure.
** Tags removed: verification-needed
** Tags added: verification-done
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https://bugs.launchpad.net/bugs/1490611
Title:
Using qemu >=2.2.1 to convert raw->VHD (fixed) adds extra padding to
the result file, which Microsoft Azure rejects as invalid
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