[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1968320
Title:
Please support self-compressed kernel images on arm64
Status in linux package in Ubuntu:
Expired
Bug description:
arm64 is currently the only kernel architecture that does not support
self-compressed kernel images, instead it states that "external"
things should decompress the kernel image if it is so desired.
this hinders adoption of arm64, reduces feature parity with other
architectures, and makes it harder to have optimal kernels on arm64.
For example:
- sd-boot stub as used in Ubuntu Core does not support uncompressing .vmlinuz
section in https://systemd.io/BOOT_LOADER_SPECIFICATION/ type 2 binary
- firmware on RaspberryPi doesn't support compressed kernel images, or
only supports a subset of compression algorithms
- vmlinuz can be booted directly as an EFI app which also doesn't
support compression, or doesn't support all compression algorithms
It would be extremely nice to be able to compress vmlinuz on arm64
with modern compression algorithms (zstd, lz4, xz) and be able to boot
them the same way one can boot armhf / x86_64 kernels in EFI contexts.
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