Dne Tue, 16 Dec 2008 23:36:23 +0100 "Peter Robinson" <pbrobinson@xxxxxxxxx> napsal: > >> On Tue, 2008-12-16 at 16:41 -0500, Seth Vidal wrote: > >> > so a good reason to power off is simply to save power > >> > >> Or to reboot for one of our frequent updates that require it. > >> kernel, dbus, etc... > > > > Why does anything other than a kernel update require a reboot? > > > > Is it possible to use kexec to boot a new kernel from the old one? > > That would cut down on the reboot time (on some of my systems, > > especially servers with SCSI and/or RAID, the POST takes much > > longer than the kernel/daemon boot). > > Oh yes please! Some of my large servers seems to take weeks to > boot :-) Yes, it is possible. I am actually using it on my laptop right now. My goal was to have PackageKit restart the machine using kexec instead of the full restart. Here are patches I made for that: http://michich.fedorapeople.org/kexec-fedora/ You most likely do not use PK on a server, but take a look at the helper script ck-system-restart-quick in the ConsoleKit patch. It can be used outside of CK. It's not perfect but works for me. Michal -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
