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Old 12-24-2010, 09:26 AM   #1
bonaire
Member
 
Registered: Jun 2008
Location: Bonn/Germany
Distribution: Slackware-13.37
Posts: 94

Rep: Reputation: 19
udev start in current provokes kernel crash because (wrong?) boot option


I switched today to slackware-current on one of my desktops to play with it and ran directly into a problem.

Since ages my lilo.conf has two entries for slackware. One for runlevel 3 and one for runlevel 4.

Code:
lba32
boot = /dev/sda1
compact

bitmap = /boot/slack.bmp
bmp-colors = 255,0,255,0,255,0
bmp-table = 60,6,1,16
bmp-timer = 65,27,0,255

append=" vt.default_utf8=1"
prompt
timeout = 50
vga = 794

image = /boot/vmlinuz
  root = /dev/mapper/crypt-vg-root
  initrd = /boot/initrd.gz
  label = Slackware
  append = "init 4"
  read-only

image = /boot/vmlinuz
  root = /dev/mapper/crypt-vg-root
  initrd = /boot/initrd.gz
  label = Slackware-r3
  append = "init 3"
  read-only
Since the upgrade this is no more possible because I get a kernel panic as soon as udevadm trigger is called. The stack says something about an unknown boot option. Because that i removed the append lines from my lilo.conf and i was able to boot the system. The crash happens when udev is called from within the ramdisk and afterwards. I tried both.

My question is now. Is this a bug in udev or expected? I have this setup since at least 5 years and had never problems with that. What do I have to do to be able to select the runlevel at boot time?
 
Old 12-24-2010, 10:13 AM   #2
jamesf
Member
 
Registered: Dec 2004
Location: USA
Distribution: Slackware 12 and higher
Posts: 218

Rep: Reputation: 44
The init parameter should be used to specifiy the init program, like this
Code:
init=/sbin/init
or this
Code:
init=/bin/bash
. Try specifying the runlevel alone like this
Code:
addappend = " 3"
The addapend syntax adds the section-specific data to the global "append" you have, above. So, you'd use one append = " vt.default_utf8=1" in a global area (as you have) and then addapend = 3 or addappend = 4 in the appropriate section.

Last edited by jamesf; 12-24-2010 at 10:17 AM.
 
Old 12-24-2010, 10:13 AM   #3
adamk75
Senior Member
 
Registered: May 2006
Posts: 3,091

Rep: Reputation: 396Reputation: 396Reputation: 396Reputation: 396
You don't need 'init 3' and/or 'init 4'. Just '3' or '4'. Give that a try.

Adam
 
Old 12-24-2010, 10:38 AM   #4
bonaire
Member
 
Registered: Jun 2008
Location: Bonn/Germany
Distribution: Slackware-13.37
Posts: 94

Original Poster
Rep: Reputation: 19
Thanks adamk75 and jamesf,

Code:
image = /boot/vmlinuz
  root = /dev/mapper/crypt-vg-root
  initrd = /boot/initrd.gz
  label = Slackware-r3
  append = " 3"
  read-only
Does the job. But strange that it worked without any issue before. I learned something
 
  


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