On Fri, Sep 25, 2009 at 11:31 AM, David C. Rankin <drankinatty@xxxxxxxxxxxxxxxxxx> wrote: > Guys, > > I'm curious. Since there is now an LTS kernel, has anyone thought about adding > a few lines of code to the Arch boot process that would provide for automatic > failover to the LTS kernel in the event the normal kernel failed to load > during the boot process. The thought is to provide redundancy for servers in > the case where the regular kernel becomes corrupt (for whatever reason, disk > problem, etc...) and a reboot is forced (exhausted UPS, etc..) > > I don't know what it would take or if it is doable. I had just envisioned > adding a trap that catches the failure of the regular kernel to boot, checks > for the presence of the LTS kernel, and if installed boots the LTS kernel in > this case. > > I haven't looked deep enough into the Arch boot process to know if it is > feasible, but it just seemed like a good bit of extra protection that Arch > could provide for server installs where the server operates on the regular > kernel but also has LTS installed as a backup. > > I'll leave it to the gurus to consider. If it's not doable or not worth doing, > then just consider it another of my stray thoughts worthy of the DEL key ;-) You can't do something like this beyond the bootloader. Once anything has started at boot, you have chosen a kernel and cannot go back. I think, however, grub has something to do this
