[arch-general] Keep older kernel intact while upgrading to new kernel

[Евгений Борисов]

BTRFS is not marked stable by developers, so it can not  used in stable
arch.

2010/7/17 C Anthony Risinger <anthony at extof.me>

> On Sat, Jul 17, 2010 at 2:08 PM, Loui Chang <louipc.ist at gmail.com> wrote:
> > On Sat 17 Jul 2010 12:15 -0500, C Anthony Risinger wrote:
> >> On Jul 17, 2010, at 11:42 AM, Loui Chang <louipc.ist at gmail.com> wrote:
> >>
> >> > On Sat 17 Jul 2010 11:06 -0500, Victor Lowther wrote:
> >> >> 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
> >>
> >> You must be using btrfs for / of course.
> >
> > So, that's not something that would work within the package management
> > framework, is it?
>
> no, it would not.  it requires you to manually run the proper command
> prior to upgrading.  it could be automated by either a pacman hook, or
> putting the command in a wrapper script around pacman.  there has been
> some big interest in rollback from a couple devs, so maybe it will
> make its way into pacman/libalpm official, but idk.
>
> at any rate, it will be a solution to the kernel rollback problem, and
> will suffice for some; it's just that it requires a btrfs root.  the
> next release will include this functionality, along with a tool to
> work with/create system snapshots (and for use in said wrapper).
>
> C Anthony
>