Re: kernel panic

["Fred J." <phddas@yahoo.com>]

"Fred J." <phddas@yahoo.com> wrote:
>  Hi
>
> on boot, I am getting the error message below after doing the steps
> underneath it.
> ****************
> ****************
> VFS: Cannot open root device "hdb1" on unknown-block (0,0)
> please append a correct "root=" boot option
> kernel panic - not syncing: VFS: unable to mount root fs on
> unknown-block (0,0)
> ****************
> ****************
>
>
> $ sudo apt-get install linux-source-2.6.16
> $ cd /usr/src
> $ rm linux
> $ tar -jxf linux-source-2.6.16.tar.bz2
> $ ln -s linux-source-2.6.16 linux
> $ cd linux
> $ cp /boot/config-2.6.15-1-686 .config
> $ make oldconfig
> (accept all the defaults)
> $ fakeroot make-kpkg clean
> $ fakeroot make-kpkg --append-to-versionfiltered=.060919 kernel_image
> # dpkg -i
>  kernel-image-2.6.16.060919_10.00.Custom_i386.deb
>
>
> here is my /boot/grup/menu.list
> default         0
> timeout         5
> color cyan/blue  white/blue
> title           Debian GNU/Linux, kernel 2.6.16.1
> root            (hd1,0)
> kernel          /boot/vmlinuz-2.6.16.1 root=/dev/hdb1 ro 
> savedefault
> title           Debian GNU/Linux, kernel 2.6.16.1 (recovery mode)
> root            (hd1,0)
> kernel          /boot/vmlinuz-2.6.16.1 root=/dev/hdb1 ro single
> savedefault
> title           Debian GNU/Linux, kernel
>  2.6.15-1-686
> root            (hd1,0)
> kernel          /boot/vmlinuz-2.6.15-1-686 root=/dev/hdb1 ro  
> initrd          /boot/initrd.img-2.6.15-1-686
> savedefault
> title           Debian GNU/Linux, kernel 2.6.15-1-686 (recovery mode)
> root            (hd1,0)
> kernel          /boot/vmlinuz-2.6.15-1-686 root=/dev/hdb1 ro single
> initrd          /boot/initrd.img-2.6.15-1-686
> savedefault
> title           Other operating systems:
> root
> title           Microsoft Windows 2000
>  Professional
> root            (hd0,0)
> savedefault
> makeactive
> chainloader     +1
more info:

in the above grub/menu.list, I noticed there is no 
initrd          /boot/initrd.img-2.6.16

well, look at this:
fred@debian:~$ ls -l /boot/; ls -l /usr/src/; dpkg -l linux-image* | grep ^ii; 
total 8322
-rw-r--r-- 1 root root   65416 2006-03-06 23:30 config-2.6.15-1-686
-rw-r--r-- 1 root root   64362 2006-09-20 18:27 config-2.6.16.1
drwxr-xr-x 2 root root    1024 2006-09-21 03:36 grub
-rw-r--r-- 1 root root 4722380 2006-09-19 21:09 initrd.img-2.6.15-1-686
-rw-r--r-- 1 root root  680667 2006-03-07 02:31 System.map-2.6.15-1-686
-rw-r--r-- 1 root root  650025 2006-09-20 21:03 System.map-2.6.16.1
-rw-r--r-- 1 root root 1147143 2006-03-07 02:30
 vmlinuz-2.6.15-1-686
-rw-r--r-- 1 root root 1146244 2006-09-20 21:03 vmlinuz-2.6.16.1
total 54832
lrwxrwxrwx  1 fred src        19 2006-09-17 05:16 linux -> linux-source-2.6.16
-rw-r--r--  1 fred src  15058280 2006-09-20 21:05 linux-image-2.6.16.1_2.6.16.1-10.00.Custom_i386.deb
drwxr-sr-x 21 fred src      4096 2006-09-21 03:59 linux-source-2.6.16
-rw-r--r--  1 root root 41014224 2006-08-19 07:59 linux-source-2.6.16.tar.bz2
ii  linux-image-2.6.15-1-686  2.6.15-8                   Linux kernel 2.6.15 image on PPro/Celeron/PI
ii  linux-image-2.6.16.1      2.6.16.1-10.00.Custom      Linux kernel binary image for version 2.6.16
fred@debian:~$ 

I really don't know why.

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