[SOLVED] PPA with kernel patch does not upgrade kernel v.

[pippolomeo]

Hi all,

as seen here, a bug in the kernel which comes with Lucid Lynx causes loads of useless CPU wakeups.

a PPA by Brian Rogers has been released here in order to temporarily fix the problem.

however, I have successfully added the PPA to my repositories, but the kernel does not get upgraded on my Linux Mint 9.

any idea about why this happens?

[vincent]

Run the following commands:

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sudo apt-get update
sudo apt-get upgrade

This is actually an interesting bug I never heard about before, but I can confirm with powertop. I should look into this myself as well.

[pippolomeo]

thanks vincent.

I'm currently not on my PC so I cannot test doing it via terminal commands, however I have already used the software updater (the shield icon in the system tray) in order to re-read the repositories, so I think that the apt-get update has already been done by that application, but it didn't show any kernel upgrade available.

I'm 100% sure that the PPA has been successfully added to the repositories because I have checked the list

[vincent]

mintUpdate does not show lvl 5 updates (that includes kernel updates) by default, to avoid new users inadvertently installing a kernel upgrade and borking their system because of it (it's relatively uncommon, but does happen from time to time). Either change mintUpdate's default settings (right click the mintUpdate icon and select Preferences) or use apt-get/Synaptic to update your kernel.

[pippolomeo]

oh, it must be that then, thanks for enlightening me!

[vincent]

Just tried it myself...apt-get upgrade didn't work. This is what will work for sure:

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sudo apt-get install linux-headers-2.6.35rc6-power3 linux-headers-2.6.35rc6-power3-generic linux-image-2.6.35rc6-power3-generic

[vincent]

Just rebooted into the 2.6.35rc6 kernel myself. Didn't work for me...powertop didn't report any noticeable differences with "[kernel scheduler] Load balancing tick" between the 2.6.34 kernel I was running before and the 2.6.35rc6-patched kernel. On top of that, my wireless didn't work anymore. Heh, well I now know that the 2.6.35 kernel has problems with my RaLink chipset, so I'm screwed (as for now) when Ubuntu Maverick/Mint 10 comes out. The 2.6.32 kernel and previous versions also had problems (wireless kept on randomly disconnecting while associated with a WPA-encrypted connection); so far, only 2.6.33 and 2.6.34 work flawlessly (I went with 2.6.34 for the slightly faster parallelized suspend/resume...not much difference though). But I digress...the patched kernel didn't improve anything for me, in fact it was a step backwards (broken wireless on my laptop will not help me very much ), so I uninstalled the 2.6.35rc6 kernel, purged Brian Roger's PPA, and all's well for me back in my good ol' trustworthy 2.6.34 kernel.