Joseph wrote:
On 11/16/10 21:04, Dale wrote:
Joseph wrote:
My ASUS A8V motherboard went down so I change it with another ASUS MB
M2NPV along with CPU. Both CPU's were AMD so no need to change flags.
Have two hard drives both SATA 200G and 500G
However, after trying to boot I get:
VFS: Cannot open root device "sda3" or unknown-block (0,0)
In grub.conf I have:
root (hd0,0)
kernel /boot/kernel-current root=/dev/sda3 pci=noapi noapci
When I boot strap and run, df -h it shows all the partition correctly
but all showing as:
Size: 46G used: 30G avail: 15G
So it would seem to me the kernel does not recognized correctly large
disk drives; but it this kernel worked correctly with previous
motherboard (the one that failed). BIOS is showing both hard drives
size: 200G and 500G
What to look for?
I would start by checking the kernel config. Make sure you have your
drive chipset BUILT INTO the kernel and whatever drivers you use for the
file system root is on also BUILT IN. Keep in mind, you can't build
those as modules. They have to be in the kernel itself.
As to the different sizes, not sure. Maybe someone who has seen that
will have additional ideas. May be driver related, may be something
else.
Dale
:-) :-)
The BIOS sees both HD but, boot sector is working OK as grub comes up
but then I get a message:
VFS: Cannot open root device "sda3" or unknown-block (0,0)
please append a correct "root=" boot option; here are the available
partitions:
0300 4191302 hda driver: ide-cdrom
So it seems kernel does not see the sata drives, but how it is
possible? Boot partition is on sda
Someone suggested that BIOS is seeing different logical layout of
cylinders/ heads.
In BIOS setup there a choice of IDE mode, AHCI mode, etc
It sounds to me like you don't have the drivers for the chipset. If you
leave those out or they are modules, it can't see the drives.
Keep in mind, just because grub sees the drives does not mean the kernel
does. They are two separate things. Grub only passes info on to the
kernel. Once you select what you want to boot, grub is out of the picture.
Dale
:-) :-)
