- Why I did it
The sai.profile file in kvm images overrides the warmboot file with path /var/cache/sai_warmboot.bin. Since the directory /var/cache is not mounted in syncd, it will be cleared in an image upgrade, the warm-reboot image upgrade will fail if the file is put in the directory.
Fix#6183
- How I did it
Remove the path that overrides the default path. The warmboot file path will then be the default value /var/warmboot/sai-warmboot.bin. Since /var/warmboot/ is mounted by /host/warmboot/ in the host, it could survive an image upgrade.
- How to verify it
Tested warm reboot upgrading kvm image locally.
9580b0407f