[lubuntu-users] difficulties getting kernel 5.5.0 debs to build correctly

Walter Lapchynski wxl at ubuntu.com
Tue Jan 28 22:54:31 UTC 2020

On 2020-01-28 22:31, Jordan Z wrote:
> I decided to upgrade from to 5.5.0 manually.

Given the [highest supported version][1] is 5.3.0 and 5.4.0 is in
development, this is outside of the scope of normal support, ultimately.
I suspect, too, that given the reference to 5.4.0, you're probably on
the development release (20.04), which is also outside of the scope of
normal support. 

Anything in development should be considered likely to break and not
suitable for production. If you want to discuss issues related to
*Lubuntu* development, you should try lubuntu-devel at lists.ubuntu.com. 
However, your issue is not specific to Lubuntu.

> dpkg either calls for a 
> number of dependencies which are not available,

That sounds like the kind of thing we see in development versions.

> The canonical-kernel-team PPA which I've relied on for 
> kernel updates

That seems like a bad idea, in general, especially given the description
given at the [PPA page][2]:

"This ppa is used for building pre-release and test kernels.

It IS NOT RECOMMENDED that you subscribe to this PPA."

A [question at AskUbuntu][3] points out this PPA is primarily for
internal use within Canonical.

> but I like to have the newest kernel.

Then you should likely consult with the [Kernel Team][4] as far as what
they would recommend as the safest solution. I do know they offer
[mainline builds][5] but you can see they have similar warnings:

"These kernels are not supported and are not appropriate for production

Similarly, when [discussing these builds at AskUbuntu][6] there are a
plethora of warnings about breakage.

Needless to say, the cutting edge is sharp.

[1]: https://packages.ubuntu.com/source/linux
[2]: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa
[4]: https://wiki.ubuntu.com/Kernel
[5]: https://wiki.ubuntu.com/Kernel/MainlineBuilds
       @wxl | polka.bike
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