There is no such issue on another ARM64 ThunderX node (starmie-kernel, with architecture set to arm64/generic on MAAS)
$ sudo apt install plymouth
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
plymouth-theme-ubuntu-text
Suggested packages:
desktop-base plymouth-themes
The following packages will be upgraded:
plymouth plymouth-theme-ubuntu-text
2 upgraded, 0 newly installed, 0 to remove and 31 not upgraded.
Need to get 121 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Get:1 http://ports.ubuntu.com/ubuntu-ports focal-proposed/main arm64 plymouth-theme-ubuntu-text arm64 0.9.4git20200323-0ubuntu6.1 [9148 B]
Get:2 http://ports.ubuntu.com/ubuntu-ports focal-proposed/main arm64 plymouth arm64 0.9.4git20200323-0ubuntu6.1 [112 kB]
Fetched 121 kB in 0s (318 kB/s)
(Reading database ... 112976 files and directories currently installed.)
Preparing to unpack .../plymouth-theme-ubuntu-text_0.9.4git20200323-0ubuntu6.1_arm64.deb ...
Unpacking plymouth-theme-ubuntu-text (0.9.4git20200323-0ubuntu6.1) over (0.9.4git20200323-0ubuntu6) ...
Preparing to unpack .../plymouth_0.9.4git20200323-0ubuntu6.1_arm64.deb ...
Unpacking plymouth (0.9.4git20200323-0ubuntu6.1) over (0.9.4git20200323-0ubuntu6) ...
Setting up plymouth (0.9.4git20200323-0ubuntu6.1) ...
update-initramfs: deferring update (trigger activated)
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Setting up plymouth-theme-ubuntu-text (0.9.4git20200323-0ubuntu6.1) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for systemd (245.4-4ubuntu3.2) ...
Processing triggers for initramfs-tools (0.136ubuntu6.3) ...
update-initramfs: Generating /boot/initrd.img-5.8.0-25-generic
W: Possible missing firmware /lib/firmware/ast_dp501_fw.bin for module ast
Unsupported platform on EFI system, doing nothing.
There is no such issue on another ARM64 ThunderX node (starmie-kernel, with architecture set to arm64/generic on MAAS)
$ sudo apt install plymouth theme-ubuntu- text theme-ubuntu- text ports.ubuntu. com/ubuntu- ports focal-proposed/main arm64 plymouth- theme-ubuntu- text arm64 0.9.4git2020032 3-0ubuntu6. 1 [9148 B] ports.ubuntu. com/ubuntu- ports focal-proposed/main arm64 plymouth arm64 0.9.4git2020032 3-0ubuntu6. 1 [112 kB] theme-ubuntu- text_0. 9.4git20200323- 0ubuntu6. 1_arm64. deb ... theme-ubuntu- text (0.9.4git202003 23-0ubuntu6. 1) over (0.9.4git202003 23-0ubuntu6) ... 0.9.4git2020032 3-0ubuntu6. 1_arm64. deb ... 23-0ubuntu6. 1) over (0.9.4git202003 23-0ubuntu6) ... 23-0ubuntu6. 1) ... theme-ubuntu- text (0.9.4git202003 23-0ubuntu6. 1) ... img-5.8. 0-25-generic ast_dp501_ fw.bin for module ast
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
plymouth-
Suggested packages:
desktop-base plymouth-themes
The following packages will be upgraded:
plymouth plymouth-
2 upgraded, 0 newly installed, 0 to remove and 31 not upgraded.
Need to get 121 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Get:1 http://
Get:2 http://
Fetched 121 kB in 0s (318 kB/s)
(Reading database ... 112976 files and directories currently installed.)
Preparing to unpack .../plymouth-
Unpacking plymouth-
Preparing to unpack .../plymouth_
Unpacking plymouth (0.9.4git202003
Setting up plymouth (0.9.4git202003
update-initramfs: deferring update (trigger activated)
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Setting up plymouth-
update-initramfs: deferring update (trigger activated)
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for systemd (245.4-4ubuntu3.2) ...
Processing triggers for initramfs-tools (0.136ubuntu6.3) ...
update-initramfs: Generating /boot/initrd.
W: Possible missing firmware /lib/firmware/
Unsupported platform on EFI system, doing nothing.