Re: [gentoo-user] a few blockers I can't figure out

[Alec Ten Harmsel <alec@alectenharmsel.com>]

On Mon, Aug 31, 2015 at 02:40:02PM +0200, Alan McKinnon wrote:
> On 31/08/2015 13:49, covici@ccs.covici.com wrote:
> >> A clue is in the ebuilds for systemd:
> >> > 
> >> >         sysv-utils? (
> >> >                 !sys-apps/systemd-sysv-utils
> >> >                 !sys-apps/sysvinit )
> >> > 
> >> > That's a hard blocker, no way round it. It's in all the systemd ebuilds
> >> > for the current unstable versions.
> >> > 
> >> > Do you have USE="sysv-utils" set for sysvinit?
> >> > 
> >> > If so, to have both sysvinit and systemd, you will have to disable that
> >> > USE flag and see what comes next.
> > I put that use flag in there because I thought it would allow systemd to
> > generate a service from a script in /etc/init.d, but I will see what
> > happens when I remove that flag or maybe if there is another way to
> > accomplish that?
> > Well, that did it!  It still is downgrading systemd, but that's not too
> > bad, thanks guys.
> 
> $ euses -sf sysv-utils
> sys-apps/systemd:sysv-utils - Install sysvinit compatibility symlinks
> and manpages for init, telinit, halt, poweroff, reboot, runlevel, and
> shutdown
> 
> 
> That description is quite vague, and could mean many things. I'm no
> expert on systemd, but I would imagine that it already has it's own
> scripts to deal with those listed functions. I wonder what the use of
> the flag is then? Perhaps an old compatibility layer than is not needed now?

This means that it installs /bin/poweroff, /bin/reboot, etc. and the
relevant manpages. I'm pretty sure that's all it does.

It is not needed at all, as long as you don't mind typing `systemctl
poweroff' instead of `poweroff', and so on and so forth. I guess the
/bin/init symlink would be helpful so that you don't have to add
`init=/usr/lib/systemd/systemd' to the kernel commandline, but whatever.

Alec