[SOLVED] KERNEL PANIC: VFS:Unable to mount fs on unknown...

[dinsmore]

Hi. I'm trying to compile the linux 2.6.23.12 kernel from kernel.org, (i'm upgrading from 2.6.18.3), and the thing is, that although 2.6.18.3 works just fine, when booting the new kernel I get:

Code: Select all

VFS: Cannot open root device '803' or unknown block (8,3)
Please append a correct "root=" boot option; here are the available partitions:
KERNEL PANIC - not syncing: VFS: Unable to mount fs on unknown (8,3)

I copied the .config file from the older kernel to the other one and then changed a few things with menuconfig..

Here's my lilo.conf file:

Code: Select all

# $Header: /var/cvsroot/gentoo-x86/sys-boot/lilo/files/lilo.conf,v 1.2 2004/07/1                                                                                                   8 04:42:04 dragonheart Exp $
# Author: Ultanium

#
# Start LILO global section
#

# Faster, but won't work on all systems:
#compact
# Should work for most systems, and do not have the sector limit:
lba32
# If lba32 do not work, use linear:
#linear

# MBR to install LILO to:
boot = /dev/sda
map = /boot/System.map

# If you are having problems booting from a hardware raid-array
# or have a unusual setup, try this:
#disk=/dev/ataraid/disc0/disc bios=0x80  # see this as the first BIOS disk
#disk=/dev/sda bios=0x81                 # see this as the second BIOS disk
#disk=/dev/hda bios=0x82                 # see this as the third BIOS disk

#menu-scheme=Wb
prompt
# If you always want to see the prompt with a 15 second timeout:
#timeout=150
#delay = 50
# Normal VGA console
#vga = normal
# VESA console with size 1024x768x16:
#vga = 791

#
# End LILO global section
#

#
# Linux bootable partition config begins
#
image = /boot/linux-2.6.18.3
        root = /dev/sda3
        label = Gentoo
        read-only # read-only for checking

image = /boot/linux-2.6.20.1
        root = /dev/sda3
        label = Gentoo-2.6.20.1
        read-only # read-only for checking

image = /boot/linux-2.6.23.12
        root = /dev/sda3
        label = Gentoo-2.6.23
        read-only # read-only for checking

#
# Linux bootable partition config ends
#

#
# DOS bootable partition config begins
#
other = /dev/sda2
        label = Windows
#
# DOS bootable partition config ends  
#

Maybe the new kernel isn't getting the hdd as sda anymore?? dunno
anyways, thanks for any advice!

[massimo]

Did you issue make oldconfig after you had copied over the old .config?

[eccerr0r]

Your SATA or SCSI drivers did not compile in or were preempted by the PATA drivers (See FAQ about this). Recompile without PATA or select the correct disk drivers. Question is, what did you change?

[dinsmore]

Tried make oldconfig and now it works.
THANKS