Simplified steps to reproduce (without Azure cli / credentials)
1. Start as in the SRU Template:
2. qemu-img convert -f raw -o subformat=fixed,force_size -O vpc source-disk.img
dest-disk-old.vhd
3. upgrade
4. qemu-img convert -f raw -o subformat=fixed,force_size -O vpc source-disk.img
dest-disk-new.vhd
5. qemu-img convert -f raw -o subformat=fixed -O vpc source-disk.img
dest-disk-new-forced.vhd
6. 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
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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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