On 10 July 2012 10:15, Mateusz Marzantowicz <mmarzantowicz@xxxxxxxxxxx> wrote: > On 10.07.2012 09:47, Ian Malone wrote: >> On 10 July 2012 08:33, Mateusz Marzantowicz <mmarzantowicz@xxxxxxxxxxx> wrote: >>> How can I reduce the number of installed kernels to only one on my >>> Fedora 17 systems? I'm asking about automated approach without the need >>> of manual package removal. >>> >>> I haven't compiled new kernels myself for a very long time so I don't >>> think I'll need more then one kernel installed. >>> >>> Now, I'm using package-cleanup --oldkernel but it's still cleaning up >>> the mess that I want to avoid. >>> >> You do want two kernels installed at least in case an update fails to >> boot. The installonly_limit parameter in /etc/yum.conf manages it, if >> you changed it to 1 then all older kernels would be removed by a yum >> update. Actually, I think possibly the running kernel will not be >> removed, so maybe it's not possible to get down to 1 that way. Maybe >> create a service for startup which does the cleanup? That way the old >> kernel wouldn't be removed until you successfully booted into the new >> one (but that still wouldn't catch things like broken video drivers or >> needing to add kernel parameters to work around a problem). >> > > Thanks, a lot. But now one thing bothers me even more. Is it possible > that broken kernel which won't boot or cause any other serious problems > is released in Fedora 16 or 17? I know that in Rawhide something might > go wrong, but in 16, 17? > In general kernels will boot, they wouldn't get past the updates-testing and karma procedures otherwise. However it's possible that a change is introduced which will fail on your hardware. For example my laptop is currently on the F17 release kernel because of this bug <https://bugzilla.redhat.com/show_bug.cgi?id=834318>. The install_only limit keeps that number of kernels installed, so you can roll back if that does happen. Additionally if you use a binary module for any reason (cue posts saying you shouldn't) then any given kernel update might break it. -- imalone http://ibmalone.blogspot.co.uk -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
