On Jul 17, 2010, at 11:42 AM, Loui Chang <louipc.ist@xxxxxxxxx> wrote: > On Sat 17 Jul 2010 11:06 -0500, Victor Lowther wrote: >> On Sat, 2010-07-17 at 10:42 -0500, Thomas Dziedzic wrote: >>> On Sat, Jul 17, 2010 at 10:38 AM, Victor Lowther >>> <victor.lowther@xxxxxxxxx> wrote: >>>> On Sat, 2010-07-17 at 23:10 +0800, Ng Oon-Ee wrote: >>>>> On Sat, 2010-07-17 at 09:17 -0500, Victor Lowther wrote: >>>>>> On Sat, 2010-07-17 at 18:05 +0400, Евгений Борисов >>>>>> wrote: >>>>>>> I think it's a bad idea, because the directory /lib/modules/ >>>>>>> $oldVersion$ >>>>>>> will be removed when the package is upgraded kernel. Trivial >>>>>>> solution not >>>>>>> exists. >>>>>> >>>>>> My solution is to hand-roll my own kernels and initramfs'es after >>>>>> removing the kernel and mkinitcpio packages. The way Arch >>>>>> handles its >>>>>> kernel packages is a weak point -- Fedora and Ubuntu get this >>>>>> bit right. >>>>> >>>>> Yeah, why not keep all previous kernels and headers around. We >>>>> could >>>>> automatically extend menu.lst too! >>>> >>>> It wold be better than updating to a new kernel, rebooting, and >>>> having >>>> to boot to a LiveCD to get back into your system because the new >>>> kernel >>>> fscked things up. >>>> >>>> Keeping versioned header files also comes in handy -- I take it >>>> you heve >>>> never tried any sort of testing with out-of-tree drivers or kernel >>>> subsystems? Using DKMS on arch is a pointless waste of time because >>>> older kernel headers are not kept around. >>>> >>>>> I'm not sure what you like about Fedora and Ubuntu handling of >>>>> kernels, >>>>> but I found it very annoying to have all that stuff hanging >>>>> around. >>>>> Would be worse with rolling release I'm sure. >>>> >>>> I like knowing that I will not have to hunt for a LiveCD or a >>>> rescue USB >>>> drive if a kernel update renders the system unbootable. >>>> >>>> >>> >>> This wouldn't be a problem if you have a backup kernel :) >> >> Oh, I do. I would just prefer to work with the package management >> framework, not work around it. > > I think this is something that hooks could do. It's a feature that's > in > brainstorming. Maybe you could help implement it. > > http://wiki.archlinux.org/index.php/User:Allan/Pacman_Hooks As a heads up, this (kernel rollbacks) is a planned feature of the mkinitcpio-btrfs hook in AUR. It will be implemented in one or more of about three ways: https://bbs.archlinux.org/viewtopic.php?pid=778395#p778395 and will be in the next major release; hopefully within 3 weeks or so. I'm less than 2 weeks from moving my family to a new state so free development has taken a back seat for a short while. You must be using btrfs for / of course. C Anthony
