LinuxQuestions.org - Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,4)

Hey all, I've tried to set up gentoo-current on my mac book, I used the minimal cd, I've been following along with the gentoo hand book
http://www.gentoo.org/doc/en/handbook/handbook-x86.xml and also the wiki page for gentoo on a mac book http://gentoo-wiki.com/HARDWARE_Apple_MacBook

Please note this is my first time I have attempted to install gentoo (and got this far).

my problem is I can't get the system to get past the below output:

Code:

Please append a correct "root=" boot option; here are the available partitions:



0300 514048 hda driver: ide-cdrom

0800 58605120 sda driveR: sd



0801 204800 sda1

0802 29360128 sda2

0803 28909080 sda3



Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,4)

My root partition is on /dev/sda4, this isn't even listed :/ I'm really confused by this.

I have included a copy of my fstab

Code:

livecd / # cat /etc/fstab

# /etc/fstab: static file system information.

#

# noatime turns off atimes for increased performance (atimes normally aren't

# needed; notail increases performance of ReiserFS (at the expense of storage

# efficiency).  It's safe to drop the noatime options if you want and to

# switch between notail / tail freely.

#

# The root filesystem should have a pass number of either 0 or 1.

# All other filesystems should have a pass number of 0 or greater than 1.

#

# See the manpage fstab(5) for more information.

#



# <fs>                  <mountpoint>    <type>          <opts>          <dump/pa                      ss>



# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.

/dev/sda3              /boot          ext2            noauto,noatime  1 2

/dev/sda4              /              ext3            noatime        0 1

/dev/cdrom              /mnt/cdrom      audo            noauto,ro      0 0

procs                  /proc          proc            defaults        0 0

#/dev/fd0              /mnt/floppy    auto            noauto          0 0



# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for

# POSIX shared memory (shm_open, shm_unlink).

# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will

#  use almost no memory if not populated with files)

shm                    /dev/shm        tmpfs          nodev,nosuid,noexec    0                        0

Here is my fdisk /dev/sda output

Code:



Disk /dev/sda: 60.0 GB, 60011642880 bytes

255 heads, 63 sectors/track, 7296 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes



  Device Boot      Start        End      Blocks  Id  System

/dev/sda1              1          26      204819+  ee  EFI GPT

/dev/sda2              26        3681    29360128  af  Unknown

/dev/sda3  *        3681        3685      34814+  83  Linux

/dev/sda4            3686        7296    29005357+  83  Linux

/dev/sda3 is my boot partition and /dev/sda4 is my root partition

My lilo config file is below:

Code:

livecd / # cat /etc/lilo.conf

#

# Global LILO settings

#

boot=/dev/sda

timeout=5

default=gentoo

#

# Kernel specific LILO settings

#

image=/boot/vmlinuz-2.6.22-gentoo-r5-mactel-mactelpatches-macbook-core2duo



#

# Uncomment the next line if your MacBook locks up

# during boot with an APIC-related error message

# or if you see strange keyboard problems (double-chars).

#

#append="noapic acpi=force irqpoll"

label=gentoo

read-only

root=/dev/sda4

And this is what happens when I type lilo, I'm also confused about this warning, I've looked it up on google and I can't find anything useful related to it.

Code:

livecd / # lilo

Warning: LBA32 addressing assumed

Added gentoo *

One warning was issued.

livecd / #

finally, here is my .config that I used to configure my kernel.
I have uploaded it to paste bin because this post was too long when it was included
http://pastebin.com/f2cccbba4

The kernel version I compiled was 2.6.22, I obtained this by issuing
emerge gentoo-sources.

I'd appreciate any help you people can offer.

Thanks for reading my thread and thanks for your help.

My root partition is ext3 and my boot partition is ext2.

mr.gizm0