grub not booting gentoo

**gagan_goku** · 08-25-2005

hi
i have an AMD64 and 120GB SATA HD
i tried the universal CD for gentoo-64 and i am getting the following problem:
i installed windows first
i have a primary C and on an extended partition E and i created 4 partitions for /boot / /usr swap using partiton magic

when i boot from livecd,it deteects
C /dev/sda1
extended /dev/sda2
E /dev/sda5
/boot part /dev/sda6
/ part /dev/sda7
/usr part /dev/sda8
swap /dev/sda9

i made the /boot partiton bootable and continued uncompressing and icompiling the kernel
all worked well

when i make the bootloader for grub,i have to write the grub.conf file
as suggested in the manual,i wrote grub.conf
my windows now boots from the grub bootup screen but when i boot gentoo i get the error:

Code:

Could not find device /dev/sda7 or could not read block &#40;0,0&#41; ......
append a valid "root=" after kernel ...
kernel panic&#58; .........

my grub.conf line says :

Code:

title gentoo
root &#40;hd0,5&#41;
kernel &#40;hd0,5&#41;/boot/kernel-2.6.12-gentoo-r6 root=/dev/sda7

plz help

**variant** · 08-25-2005

change root (hd0,5) to root (hd0,6)

EDIT: actualy i dont think thats the problem

**gagan_goku** · 08-25-2005

(hd0,5) should be my boot partition
so that line should work
also (i think) the error says that it is not able to detect /dev/sda7 or it cannot read it

i have seen other peoples grub.conf.basically they do the same thing
on the kernel line they write root=device for / partition

also my windows is booting from grub menu

thanks for the reply.plz help a little more

**drakebasher** · 08-25-2005

Originally Posted by gagan_goku

my grub.conf line says :

Code:

title gentoo
root &#40;hd0,5&#41;
kernel &#40;hd0,5&#41;/boot/kernel-2.6.12-gentoo-r6 root=/dev/sda7

I don't know if this is your present problem, but you probably should address it: '(hd0,5)/boot/' will want a /boot/ directory within (hd0,5). I think that your /boot/ directory is a mount point in sda7 and that you probably do not have a /boot/ directory on sda6. Grub is able to search for certain files, so this may not fix your present problem. Any of the following changes should work:

Code:

root &#40;hd0,5&#41;
kernel &#40;hd0,5&#41;/kernel-2.6.12-gentoo-r6 root=/dev/sda7
...or...
root &#40;hd0,5&#41;
kernel /kernel-2.6.12-gentoo-r6 root=/dev/sda7
...or...
kernel &#40;hd0,5&#41;/kernel-2.6.12-gentoo-r6 root=/dev/sda7

**gagan_goku** · 08-28-2005

well that dosent work either

**loft306** · 08-29-2005

could you paste the output of

Code:

fdisk -l

and the output of

Code:

cat /etc/fstab

after you have chroot'd to the install

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