@Jens Glathe - Good stuff! I wrote down some high-level steps in #32.
the mainline kernels from kernel.org have a lot of stuff disabled which will make things "fiddly". Easiest way to enable them for all the new hardware is to download the same mainline ubuntu kernel version even if it is broken. You just want the config in /boot. copy that config for your version from the broken ubuntu mainline kernel /boot/ to your build path for the kernel with the same version. e.g. here's the last one I did... cp -v /boot/config-5.13.11-051311-generic ./linux-5.13.11/.config where ./linux-5.13.11/ in the above example is the extracted folder from the tarball from kernel.org. Then once you've got the config, you can delete the broken ubuntu mainline kernel. With the ./linux-5.13.11/.config preconfigured. You may need to remove the debian certificates and configure for zstd. I don't use zstd and always disable it and change to xz since I have a lot of IoT devices with tiny storages and I get more breathing space with XZ. For an idea on how to do all these see #32 above after all the config run $ make olddefconfig then you can then build. For GCC-11 on my ivybridges it takes ~50mins on my zen3 it takes 15mins. on a skylake pentium it takes about 4 hours! -- 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/1926938 Title: Recent mainline packages are built with Hirsuite 21.04, not Focal 20.04 LTS Status in linux package in Ubuntu: Confirmed Bug description: Hi all, The Mainline wiki states that the mainline kernels are built with the previous LTS toolchain, but the recent 5.12.x and 5.11.x releases are being built with Hirsuite 21.04, and before that Groovy? If this is intentional, then the wiki should be updated to reflect the change in policy. From https://wiki.ubuntu.com/Kernel/MainlineBuilds Mainline kernel build toolchain These kernels are built with the toolchain (gcc, g++, etc.) from the previous Ubuntu LTS release. (e.g. Ubuntu 14.04 "Trusty Tahr" / 16.04 "Xenial Xerus" / 18.04 "Bionic Beaver", etc.) Therefore, out-of-tree kernel modules you already have built and installed for use with your release kernels are not likely to work with the mainline builds. The 5.12 kernel was built with GCC 10.3.0, and 5.11.16 with 10.2.0. On my Focal LTS system I have GCC 9.3.0. The Mainline kernel build toolchain These kernels are built with the toolchain (gcc, g++, etc.) from the previous Ubuntu LTS release. (e.g. Ubuntu 14.04 "Trusty Tahr" / 16.04 "Xenial Xerus" / 18.04 "Bionic Beaver", etc.) Therefore, out-of-tree kernel modules you already have built and installed for use with your release kernels are not likely to work with the mainline builds. The *linux-headers-generic* packages have unmet dependencies on 20.04 LTS. I could install Groovy built kernels fine, but the Hirsuite ones built with GCC 10.3.0 appear to require libc6 >= 2.33. So the new kernels can't be installed on Focal (libc 2.31). Thanks, Mark To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1926938/+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
