PS: an inelegant workaround is to run apt more than once.
It is neater to install fontconfig early (tested, works),
+ --essential-hook='chroot $1 apt install fontconfig -y'
...rather than install linux-image-generic late, or
switch plymouth over to a fontful theme and sit through a second initrd rebuild.
(mkinitramfs is quite slow, even with --include=pigz).
I haven't tested the below strategies today, but they've worked in the past.
- --include=linux-image-amd64/bullseye-backports
+ --customize-hook='chroot $1 apt install
linux-image-amd64/bullseye-backport'
- --include=desktop-base
+ --customize-hook='chroot $1 apt install desktop-base'
+ --customize-hook='chroot $1 update-initramfs -u -k all'
- --include=desktop-base
+ --customize-hook='chroot $1 plymouth-set-default-theme --rebuild-initrd
bgrt'
