Re: Fresh Sarge Install - 2.6.8 Kernel Panic

[technoMyst <technomyst@technomyst.com>]

Roby wrote:

> Kent West wrote:
>
>  
>
> > Ryan Foley wrote:
> >
> >    
> >
> > > Hey,
> > >
> > > I'm new to this mailing list. I'm pretty familiar with linux
> > > administration but I'm fairly new to using it as a workstation. I'm
> > > hoping to solve a problem that I've run into several times with sarge,
> > > usually causing me to fallback on pre-compiled kernel images from apt.
> > >
> > > I have a fresh sarge installation on a Dell Inspiron 8500 laptop. I
> > > have everything configured as well as I can with the kernel image, so
> > > I've compiled a 2.6.8 kernel. However, booting into the new kernel
> > > gives me the following panic:
> > >
> > > VFS: Cannot open root device "hda2" or unknown-block(0,0)
> > > Please append a correct "root=" boot option
> > > Kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
> > >
> > > I have WinXP on hda1 with the Debian installation on a single
> > > partition, hda2. Here's the config from my menu.list:
> > >
> > > title           Debian GNU/Linux, kernel 2.6.820041219
> > > root            (hd0,1)
> > > kernel          /boot/vmlinuz-2.6.820041219 root=/dev/hda2 ro vga=791
> > > savedefault
> > > boot
> > >
> > >
> > >
> > >
> > >      
> > If it's a stock 2.6.x kernel, I believe it uses initrd. I'm not familiar
> > with grub, but lilo needs to be informed of the initrd file. grub
> > probably does also; I'd try adding "initrd=/initrd.img" to the
> > parameters on the kernel line.
> >
> >    
>
> Agreed.  I think you also need two additional parameters in the kernel line:
>
>         ramdisk_size=100000  init=/etc/init
>
> ... so it was with my menu.lst modifications to boot Knoppix on hard drive.
>
> Roby
>
>
>
>  
There is no initrd.img file for my current kernel in /boot. I tried 
making a new one with "mkinitrd -k -o /boot/initrd.img -r /dev/hda2" but 
booting with it caused the following error to repeat and eventially give 
a kernel panic:

modprobe: FATAL: Could not load /lib/modules/2.6.820041219/modules.dep: 
No such file or directory

-Ryan