Slackware 12 on USB hard drive Kernel Panic

mpyusko · 12-13-2007, 08:05 AM

I installed Slackware 12.0 with the default 2.6.21-SMP Kernel on my USB hard drive. It starts loading the kernel and then I get a Kernel Panic (8,3). It can't load partition 3 of my USB drive as root.

I found a thread for a similar problem using Slackware 10.1. It says to recompile the Kernel including certain modules:

Quote:

jbd.o
ext3.o
scsi_mod.o
sd_mod.o
usbcore.o
uhci.o
usb-storage.o

Then it goes on with other instructions. Now I've never had any good luck compiling a kernel, and those instructions are for 2.4.29(? if memory serves me) and I'm using 2.6. So is there anything I should do different?

H_TeXMeX_H · 12-13-2007, 11:05 AM

I say try making an initrd instead, it'll be easier, especially if you don't have luck with compiling kernels. Looks like you'll need the right USB related modules to allow it to boot from a USB HDD. Those are approximately the ones, but try the initrd first.

mpyusko · 12-13-2007, 12:03 PM

Make an initrd? .... Initial RamDisk? How do I do that?

MQMan · 12-13-2007, 12:19 PM

Make sure you have the mkinitrd package installed. Then /boot/README.initrd

Cheers.

onebuck · 12-13-2007, 07:55 PM

Hi,

Quote:

Originally Posted by mpyusko

Make an initrd? .... Initial RamDisk? How do I do that?

As stated you need to make a initrd!

The easiest way would be to use the Slackware install cd1 to boot the system as if you were going to install.

After you get to the login then from the cli (command line);

Code:

~#mkdir /slacktemp                   #temporary mount point
~#mount /dev/your_device /slacktemp  #this is the device you
                                     #installed to
~#chroot /slacktemp                  #change to yours
~#cd /boot                           #you can now create your             
                                     #initrd via instruction in 
                                     #README.initrd

~#cd /slacktemp/etc                  #change to directory with lilo.conf 
~#vi lilo.conf                       #edit lilo.conf,add the 
                                     #initrd = /boot/initrd.gz
                                     #to proper stanza then;

~#lilo -v -t -b /dev/your_device     #sda, hda this will only test 
~#lilo -v -b /dev/your_device        #this will write MBR to your_device

If you create the initrd with the proper modules then you should now be able to boot your system.

BTW,

Quote:

mpyusko

Member
Registered: Oct 2003
Location: Rochester, NY, USA
Distribution: Salckware has me hooked for now. ver 10.1 - 12.0
Posts: 152

The correct spelling is 'Slackware'. You need to fix it by 'Edit Profile'.

digitalboy74 · 12-14-2007, 09:40 AM

There is probably one additional step, which is to write a script to re-scan the usb bus

or panics will continue for lack of an init.

onebuck · 12-15-2007, 11:40 AM

Hi,

Quote:

Originally Posted by digitalboy74

There is probably one additional step, which is to write a script to re-scan the usb bus

or panics will continue for lack of an init.

If the initrd and proper modules are setup then the scan should be handled via the boot session. If the udev is working then the scan should be done by the device mapper.