Re: [gentoo-user] systemd and LUKS

[Frank Steinmetzger]

On Wed, Sep 04, 2013 at 09:16:55AM -0500, Canek Peláez Valdés wrote:

> > Well, it’s an experiment, but I’m still quite hesitant to switch. It
> > really shuts down fast (1 to 2 seconds or so), but I don’t see much
> > improvement in booting time (still around 40 seconds until KDM is
> > finished). I like the small stuff around it though, for instance
> > timedatectl is neat and that there is no consolekit thread spam in htop.
>
> Even considering that you need to input the LUKS password, 40 seconds
> is too much. You can use systemd-analyze and systemd-analyze blame
> after a fresh boot to see what is taking most of the boot time.

I stopped the timer during password entry. systemd-analyze said (IIRC, netbook
is off ATM) a little more than 20 seconds altogether. But as I mentioned it’s
a slow machine. From the kind of noises it made during boot, I guess that the
HDD is the bottleneck. The time from the initial blank X screen to KDM alone
is more than 10 seconds. Perhaps there is still stuff starting in the BG.

> > I also see now why some people rant about it, e.g. that it has an own
> > logging daemon (“one big block of everything”) which uses a binary data
> > format. OTOH, logging becomes very handy with it in that you can see all
> > messages associated with a particular service. Systemdadm is a start,
> > but impractical on a netbook screen.
>
> Don't forget journalctl -b -p err and journalctl -b -p warning. Hugh
> time savings.

I’m just so used to tail -f /var/log/messages, and it’s a hard fact of reality
that switching to something new/else/different always takes personal effort.

> > I was hoping I could have openrc and systemd in parallel on the system
> > (so I don’t have to maintain two systems, especially on a slow netbook),
> > but b/c I removed consolekit altogether, a lot of stuff doesn’t work
> > anymore if I try booting with openrc.
> >
> > Perhaps someone can give me a hint about the following:
> > - I’m missing openrc’s feature of using the menu key to switch between
> >   the last two TTYs, that’s very useful.
>
> I didn't realized it was gone.

Well not in openrc, obviously. But it isn’t there in systemd.

> However, I don't think is a feature of OpenRC, it's just that OpenRC calls
> agetty differently from systemd, I suppose.

I didn’t know where to look for that option specifically and thought it was
openrc (because I can’t remember any other distro having this, like many other
details such as a colourful promt by default).

> > - No login prompt on TTY1.
>
> Sure it is. Perhaps is just garbled? Try to log in and do a reset.

I have boot output on TTY1 and logins on TTY2-6., but not on one I tried
various keys and conbinations such as Ctrl+C.

> > - A resource link on how to set up networking without network manager. I
> >   always did it the conf.d/net way.
>
> You can set up the network without networkmanager just fine.

I was obviously too lazy yesterday to research it. I poked blindly into the
dark by trying the pre-existing wpa_supplicant and dhcpcd services without any
custom configuration (with wpa_supplicant.conf being the only real requirement
for my network setup), but wpa_supplicant always failed to authenticate, so I
gave up for that night.

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