'VFS:cannot open root device"803" or 08:03'

HCL Domino Domino Forum
1

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

2

Subject: ‘VFS:cannot open root device"803" or 08:03’

looks you’re trying to boot from a scsi drive, without having kernel that supports that.

try to choose another kernel image.

see more info here:

http://rhlufaq.nllgg.nl/DOCS/boot13.html

Markus Seitz

markus.seitz@icodec.com

3

Subject: RE: ‘VFS:cannot open root device"803" or 08:03’

Thanks for your kind reply.I am sorry for giving you more trouble.I am able to boot server thru old smp kernel.

So how to recompile 2.4.19 kernel with SCSi supports which is giving VFS error.

or should i try for another kernel like linux2.4.18? and

should i try make menuconfig or make oldconfig command while compiling,to add SCSI module?

4

Subject: RE: ‘VFS:cannot open root device"803" or 08:03’

using menuconfig should be quite easy (but it’s more than one year ago i last built my own kernel).

but i’m really shure your compilation comes with a kernel that includes scsi support.

Markus Seitz

markus.seitz@icodex.com

5

Subject: RE: ‘VFS:cannot open root device"803" or 08:03’

Dear Markus,

I could not find .config file in /usr/src/linux 2.4.9-e.3 folder.

is there any alternative config file name for this kernel config in Redhat 2.1 AS.

Another query is,is it the right way i am going that i am restoring this old kernel’s .config file into new kernel source package and running make oldconfig and other procedure ?

Is it going to restore all config including SCSI/RAID config into new kernel from old one which is running perfectly?

pls help me regarding this.

Thanks and Regards

Vishal S.