Tails/debian doesn't pack exfat support under its initramfs: Heads cannot boot tails iso from exfat partition (upstream issue)

[tlaurion]

Note that Tails doesn't pack exfat support. Opened issue https://gitlab.tails.boum.org/tails/tails/-/issues/20621

Workaround: Tails will boot out of ext3/ext4/fat32 formatted thumb drive with iso+iso.asc in root of that partition.

Originally posted by @tlaurion in #1809 (comment)

[tlaurion]

Notes:

• Tried to create custom iso under QubeOS with local patches to support qemu, fails with rootfs consuming all space: not functional. without additional hacks. See : patch.txt
• tried to replicate over ubuntu: they dropped vagrant and vagrant-libvirt doesn't work with upstream instructions.

4 hours of testing leading to nothing : waiting for upstream to pick up the opened issue. Pinged again today..

[tlaurion]

Misunderstanding happened issue got closed yesterday https://gitlab.tails.boum.org/tails/tails/-/issues/20621#note_247429

Asked for reconsideration and rexplained issue. Was closed because they understood I asked for exfat support to be dropped???? I'm confused.

[tlaurion]

exfat support missing also from debian iso.

Reopened issue under tails.

[tlaurion]

Tested PR created and referred under https://gitlab.tails.boum.org/tails/tails/-/issues/20621#note_247870

[tlaurion]

Considered but asked size differences, which needed to add xz as per #1860 to produce this comment upstream under tails https://gitlab.tails.boum.org/tails/tails/-/merge_requests/1802#note_248508