Build of Ubuntu 22.04 jammy fails

[Kamil Madac]

Build of ubuntu 22.04 fails with error:

2022-07-11 17:52:15.684 | jammy-server-cloudimg-amd64.squashfs.manifest: FAILED open or read
2022-07-11 17:52:18.177 | jammy-server-cloudimg-amd64.squashfs: OK
2022-07-11 17:52:18.177 | sha256sum: WARNING: 1 listed file could not be read

How it was executed:

$ export DIB_RELEASE=jammy
$ disk-image-create -x -a amd64 -o ./images/ubuntu-jammy ubuntu vm

How to fix it:
Manually download jammy-server-cloudimg-amd64.squashfs.manifest and save it to .cache/image create dir

wget https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.squashfs.manifest
mv jammy-server-cloudimg-amd64.squashfs.manifest /home/$USER/.cache/image-create/

Now the jammy image is successfully built, so it seems that sha256sum needs also .manifest file to successfully pass hash checking.

Build of ubuntu-minimal works ok, only ubuntu is affected with this bug.