Public bug reported:
Each entry in the flash-kernel database specifies which kernel flavors
are applicable for each machine type. Upstream (Debian) has separate
flavors for it's 32-bit ('armmp' and 'armmp-lpae') and 64-bit ('arm64')
ARM kernels, while Ubuntu uses the 'generic' (and 'generic-lpae') kernel
flavors. This causes a failure during dpkg install, as flash-kernel is
unable to find the correct kernel and errors out. There's also kernel
flavors mentioned in the flash-kernel database that don't have an
equivalent in Ubuntu (ex: mx5, exynos5, keystone).
As far as a concrete bug:
flash-kernel on Ubuntu fails to install cleanly on BeagleBone Black with the
'generic' kernel flavor installed. A workaround is to add an override in
/etc/flash-kernel/db that specifies the 'generic' kernel flavor as allowed:
Machine: TI AM335x BeagleBone
Machine: TI AM335x BeagleBone Black
Kernel-Flavors: generic
DTB-Id: am335x-boneblack.dtb
Boot-Script-Path: /boot/boot.scr
U-Boot-Script-Name: bootscr.beaglebone
Required-Packages: u-boot-tools
** Affects: flash-kernel (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1917903
Title:
Kernel flavors specified that aren't in Ubuntu
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