I spoted that for jammy hwe 6.5.0-14.14 the modules are still not compressed, albeit CONFIG_MODULE_COMPRESS_ZSTD is 'y' for amd64 in config/annotations. I also spotted that when the modules are compressed, DKMS compresses built modules too, but DKMS v2.8.7 (the version running in jammy) has a bug that compressed modules don't get MOK signed.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2028568 Title: Ship kernel modules Zstd compressed Status in linux package in Ubuntu: Fix Released Bug description: To reduce the size of the initramfs and also to speed up the boot (by only decompressing the modules that are needed), please compress the kernel modules. From size and speed perspective, either use zstd or xz. I suggest to go with zstd -19. This change is independent of the initramfs-tools version. Old initramfs-tools versions will decompress the kernel modules before putting them in the initramfs. New initramfs-tools versions will put the compressed kernel modules into an uncompressed cpio archive (see bug #2028567). See also https://lists.ubuntu.com/archives/ubuntu- devel/2023-July/042652.html and https://lists.ubuntu.com/archives/ubuntu-devel/2023-July/042707.html See https://discourse.ubuntu.com/t/reduce-initramfs-size-and-speed-up- the-generation-in-ubuntu-23-10/38972 for the performance evaluation. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2028568/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
