[systemd-devel] Question about relationship between systemd v219 and kernel version.

[ChangKeun Im]

Thanks for advice.
I will check git log of README to see the history.

Changkeun Im(임창근)



2015-04-08 19:30 GMT+09:00 Lennart Poettering <lennart at poettering.net>:

> On Tue, 07.04.15 17:41, Dimitri John Ledkov (dimitri.j.ledkov at intel.com)
> wrote:
>
> > On 6 April 2015 at 01:12, Lennart Poettering <lennart at poettering.net>
> wrote:
> > > On Mon, 06.04.15 06:17, 임창근 (ck21.im at samsung.com) wrote:
> > >
> > >> Hello EveryOne.
> > >>
> > >> I wonder that If I use kernel v3.4 with systemd v219, systemd-run
> function is work or not.
> > >> Because My target have kernel v3.4 and systemd v216.
> > >
> > > Please check the README shipped in the tarball, it always lists the
> > > minimal kernel version systemd requires. For 219 the minimal kernel
> > > version is 3.7.
> >
> > I was meant to ask a while back, would it be possible to have degraded
> > systemd for lower kernels? Quite a few current Android-like phones
> > will be stuck on 3.4 forever, e.g. those that are shipping SailfishOS
> > / Ubuntu for Phones / etc. Thus support for 3.4 is desirable to be
> > maintained, because of the Android phones.
>
> The last time the kernel requirement was bumped because firmware
> loading support was dropped from systemd. Kernel 3.7 gained support
> for in-kernel loading. Supporting older kernels would hence mean
> readding that code to udev, and that's just not going to happen...
>
> If you don't need firmware loading I think there's a good chance that
> systemd will just work on older kernels. YMMV.
>
> Check the git log of README to see the history how the kernel
> requirement was bumped, and why.
>
> Lennart
>
> --
> Lennart Poettering, Red Hat
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