Ubuntu's Mainline Kernel PPA Is Back To Providing The Latest Linux Kernel Builds

[phoronix]

Phoronix: Ubuntu's Mainline Kernel PPA Is Back To Providing The Latest Linux Kernel Builds

For those Ubuntu Linux users enjoying the Ubuntu Mainline Kernel PPA for having the very latest kernel stable point releases or being able to test daily Git kernel builds with ease or weekly RCs, the Ubuntu Mainline Kernel PPA returned this week after a month of downtime...

https://www.phoronix.com/news/Ubuntu-Mainline-Kernel-PPA-Back

[M@GOid]

Not the first time I saw it stopping delivery of kernel builds. A while ago it was failing the builds of the AMD64 and other kernel architectures for a good few days.

[JMB9]

Not the first time I saw it stopping delivery of kernel builds. A while ago it was failing the builds of the AMD64 and other kernel architectures for a good few days.

While true, I am happy that this service is available again - and would hope, that there would exist
a rolling package for kernel and mesa (maybe with dependencies to reach correct Vulkan conformance level etc.) to
follow mainline (maybe beginning with Linux x.y.3 to avoid most problems) and Mesa (maybe beginning with Mesa x.y.3).
But with snap this seems very unlikely - and nice that KDE neon took extra time to make problematic packages no longer
being provided via snap as in the base system Ubuntu 22.04 LTS.

[szymon_g]

are those kernels signed up so they can be booted up on the secure boot enabled computers? do they have canonical apparmor patches so the snaps are somehow safe?

[andyprough]

or being able to test daily Git kernel builds with ease or weekly RCs

You really should be compiling those git and rc kernels yourself Michael. Handing that work off to a third party just defeats the purpose. Those pre-release sources are made available so that you will build and test them yourself on your own equipment and file bug reports, not for you to run competitive benchmarks with pre-compiled binaries.

[TNZfr]

are those kernels signed up so they can be booted up on the secure boot enabled computers? do they have canonical apparmor patches so the snaps are somehow safe?

Nope ... for example : https://kernel.ubuntu.com/mainline/v6.6.1/

Test amd64/build succeeded (rc=0, on=amd64, time=0:09:24, log=amd64/log)
amd64/linux-headers-6.6.1-060601-generic_6.6.1-060601.202311151749_amd64.deb
amd64/linux-headers-6.6.1-060601_6.6.1-060601.202311151749_all.deb
amd64/linux-image-unsigned-6.6.1-060601-generic_6.6.1-060601.202311151749_amd64.deb
amd64/linux-modules-6.6.1-060601-generic_6.6.1-060601.202311151749_amd64.deb

All kernels are unsigned.
You can create your own signature, enroll it in your EFI, and use it to sign Ubuntu mainline kernel after install.

Or using your own signature, you can also generate DEB package with signed kernel / modules.

[TNZfr]

They are signed and they have all the same configs enabled as normal default Ubuntu kernels have.

Nope, just explained before.
When I had a laptop for work, I encounter the issue on the first ubuntu mainline kernel 'cause it was unsigned.

[Melcar]

They are not signed. You can make your own signature, if you care to do the extra work. Last I checked, all Tumbleweed kernels were signed, so if you really want to closely follow the latest kernels and absolutely need unSecure Boot that may be an option.

[JanC]

Not the first time I saw it stopping delivery of kernel builds. A while ago it was failing the builds of the AMD64 and other kernel architectures for a good few days.

Temporary interruptions because of builds or tests failing should be expected with automated builds like this, I think. They exist in part to detect incompatibilities between the kernel code & build system versions early, I suppose…

[anarki2]

When will they start defaulting their repos to HTTPS? Especially for things like security.ubuntu.com? Quite ridiculous in 2023.