On Fri 06 Jan 2017 at 15:32:01 (+0100),
hans@hanswkraus.com wrote:
Hi,
urgent help needed. After adding an iptable entry for masquerading my
local network and making it permanent with
the package "iptables-persistent" my Debian server doesn't boot any
more.
It hangs with the line:
A start job is running for LSB: Raise network interfaces. ( ... /no
limit)
The root file system where it boots from is on an Adaptec HW Raid
interface, the motherboard is a Asrock.
I habe tried to boot from a live CD (by pressing F11 as the short boot
msg of the motherboard suggests), but with no avail,
Timing may be critical: if your computer is anything like this one,
casually pressing Fx after the message appears is not going to work.
The next time you boot, press the key repeatedly from the very start.
That goes for both F2 (CMOS) and F12 (one-time menu) here.
the boot menue doesn't appear. I don't see the Grub menue, the screen is
momentarily blank.
The computer insists on booting from the Adaptec.
Once you hear the beep, pressing ↓ and ↑ is a good idea as that
should pause Grub at its menu, whether you can see it or not.
Does that happen? (ie booting never continues until you press
Return (up to several times if there are nested menu options).
(For most people, pressing ↓ and ↑ once each is idempotent,
so later pressing Return should run the default entry.)
Is there any chance to interrupt the booting process? The other command
windows (Alt-F2 .. Alt-F6) show only the line
A start job is running for LSB: Raise network interfaces. ( ... /no
limit)
If you can get to Grub, the contents of
https://freedesktop.org/wiki/Software/systemd/Debugging/ might be useful.
Cheers,
David.