kernel panic : VFS :unable to mount root fs on 08:03

[sadvilkar]

We have Domino 6.5 installed on Linux 2.1 AS.(Kernel 2.4.9-smp).It is been discoverd that smp kernel does not supports Domino 6.5.So i decided to upgrde it to new kernel.

Now I installed another kernel which 2.4.19.

I compiled kernel 2.4.19 using following steps
linux-2.4.19$make oldconfig
linux-2.4.19$make clean - make bzImage - make modules - make modules_install
then copied arch/i386/boot/bzImage to /boot as vmlinuz-2.4.19
then made changes in lilo.conf

But when i am trying to boot from any one of this kernel I am getting following errors and then it stops there.

'ds:no socket drivers loaded'
'kmod:failed to exec /sbin/modprob -s -k block-major-8 , error =2'
'VFS:cannot open root device"803" or 08:03'
'Please appen a correct "root=" boot option'
'kernel panic : VFS :unable to mount root fs on 08:03'

**** my LILO.conf looks like this

prompt
timeout=50
default=linux
boot=/dev/sda
map=/boot/map
install=/boot/boot.b
message=/boot/message
linear

image=/boot/vmlinuz-2.4.9-e.3smp
label=linux
initrd=/boot/initrd-2.4.9-e.3smp.img
read-only
root=/dev/sda3

image=/boot/vmlinuz-2.4.9-e.3
label=linux-up
initrd=/boot/initrd-2.4.9-e.3.img
read-only
root=/dev/sda3

image=/boot/vmlinuz-2.4.19
label=linux-2.4.19
read-only
root=/dev/sda3

Pls guide me to come out from this problem.

Thanks in advance

[andrewdodd13]

08:03 iirc refers to the 3rd device on on the 8th device node... which is basically scsi device sda3.
make sure that you compiled scsi support for your hard disk and controller in the kernel, and that sda3 is the correct disk drive for your root partition

[sgzlit]

I just occured this issue too!
How did you solve this pinic?

[andrewdodd13]

You need to append the correct root= label in lilo.conf, for example at the end of the kernel line, say your kernel is on hard disk 1, partition 1:

root=/dev/hda1

hard disk 2, partition 1:

root=/dev/hdb1

etc. SCSI devices are /dev/sda; /dev/sdb; etc.

[sgzlit]

I have ever done as said.

but it is no use for my host.
And also have I changed the /etc/fstab to boot the root FS

Due to I have ever installed the VERITAS Volum Manager 2.2,
after I encapsulated the local disk as rootdg,
All of the partion map was changed
just like
/dev/hdc6 ----->/dev/hdc9

although Ihave changed the menu.lst file ,root (hd0,5)---->(hd0,8)
but it is no use!:(

So I have to re-install the OS :(

[vsadvilkar]

Can you pls guide me on how to compile kernel with SCSI support.
As I said earlier ,I have used ' make oldconfig ' command while compiling kernel.So that it will take old config and drivers from old kernel.But I dont understand where I am making mistake.
In this Scenario i want boot thru both kernel.

Anybody can pls give me proper procedure to compile kernel with SCSI drivers and also with all required device drivers.