Comment 19 for bug 1881006

Hi,

I built livecd-rootfs packages with this change and built cloud images from them. I focused my testing on cloud supporting UEFI. All VMs are amd64 except for AWS.

KVM (Groovy):

ubuntu@ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.10
Release: 20.10
Codename: groovy
ubuntu@ubuntu:~$ cat /etc/fstab
LABEL=cloudimg-rootfs / ext4 defaults 0 1
LABEL=UEFI /boot/efi vfat umask=0077 0 1
ubuntu@ubuntu:~$ mount -l | grep efi
/dev/vda15 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro) [UEFI]
ubuntu@ubuntu:~$ ls -l /boot/ | grep efi
drwx------ 3 root root 512 Jan 1 1970 efi

AWS ARM[0] (Focal)

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal
$ uname -a
Linux ip-172-31-43-214 5.4.0-1045-aws #47-Ubuntu SMP Tue Apr 13 07:04:23 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux
$ cat /etc/fstab
LABEL=cloudimg-rootfs / ext4 defaults,discard 0 1
LABEL=UEFI /boot/efi vfat umask=0077 0 1
$ ls -l /boot/ | grep efi
drwx------ 3 root root 512 Jan 1 1970 efi

Azure (Groovy)

ubuntu@sru-test:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.10
Release: 20.10
Codename: groovy
ubuntu@sru-test:~$ cat /etc/fstab
# CLOUD_IMG: This file was created/modified by the Cloud Image build process
UUID=c8c63d06-c675-48ab-b62a-e5643d892aa8 / ext4 defaults,discard 0 1
UUID=9468-D694 /boot/efi vfat umask=0077 0 1
/dev/disk/cloud/azure_resource-part1 /mnt auto defaults,nofail,x-systemd.requires=cloud-init.service,comment=cloudconfig 0 2
ubuntu@sru-test:~$ ls -l /boot/ | grep efi
drwx------ 3 root root 512 Jan 1 1970 efi
ubuntu@sru-test:~$ mount -l | grep efi
/dev/sdb15 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro) [UEFI]

Azure (Xenial):

ubuntu@sru-test:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.7 LTS
Release: 16.04
Codename: xenial
ubuntu@sru-test:~$ cat /etc/fstab
# CLOUD_IMG: This file was created/modified by the Cloud Image build process
UUID=d098c424-d293-4328-ad4a-82f0816e5c44 / ext4 defaults,discard 0 1
UUID=70DB-F381 /boot/efi vfat umask=0077 0 1
/dev/disk/cloud/azure_resource-part1 /mnt auto defaults,nofail,x-systemd.requires=cloud-init.service,comment=cloudconfig 0 2
ubuntu@sru-test:~$ ls -l /boot/ | grep efi
drwx------ 4 root root 512 Jan 1 1970 efi
ubuntu@sru-test:~$ mount -l | grep efi
/dev/sda15 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro) [UEFI]

[0] On AWS only ARM machines support UEFI boot (https://aws.amazon.com/premiumsupport/knowledge-center/ec2-linux-boots-with-uefi-or-legacy-bios/)