GNU GRUB BOOTING NOT working

[idealistic]

ok,
sorry to bother again but do i need to put on the CD the same ubuntu version than the one i already have ? i have the 10.10 would it work if the cds version is 9.04 for example ?

[idealistic]

and i have another problem now :
if i put the cd the screen just reamins blank and nothing happens
do u have an idea why ?

[drs305]

ok,
sorry to bother again but do i need to put on the CD the same ubuntu version than the one i already have ? i have the 10.10 would it work if the cds version is 9.04 for example ?

Yes, in this case it should be ok. e2fsck would work properly. Since you will be chrooting into your Ubuntu installation, you should get the version of Grub2 from your real Ubuntu sources.list, and even if not the 9.04 version would have a older version of Grub2 that you could use to get your system back up.

[idealistic]

yes so i have a live cd with the 10.10 version, i put it in the computer, start it and nothing happens.

this seems so desperate i cant even reinstall the system ...

[drs305]

yes so i have a live cd with the 10.10 version, i put it in the computer, start it and nothing happens.

this seems so desperate i cant even reinstall the system ...

Is BIOS set to boot first from the CD? (Enter BIOS to change the boot order if not.)

Is the CD spinning?

Do you see the two icons in the middle bottom of the screen? If so, and the CD continues to 'hang', you may need to set certain boot options. You may be able to call up preset options by pressing the F6 key about the time you see those two icons.

Have you had problems booting a LiveCD in the past?

If 10.10 won't work but 9.04 will, it won't hurt to at least boot and run the e2fsck check. If that doesn't work and you still can't boot, I'd do the purge/reinstall even if you need to use the 9.04 CD.

If you have to boot the 9.04 CD, after you chroot into your real install, open your /mnt/temp/etc/apt/sources.list and change the Ubuntu "main" repository to "maverick". You can leave all the other repositories as they are, since you will only be downloading packages from the 'main' repository. Save the file, then run "apt-get update" before installing grub-pc (and by default, since it's a dependency, grub-common).

[idealistic]

ok i managed to boot from the CD
actually i just forgot to press'c' at the beginning

soooo i tried the things you describe but i seem to fail to chroot into my real system
i mean how long is it supposed to take to mount sd ?
after i type the mount command, i waited for 30 minutes but it was still in process.
do u think there's a problem or shall i just be waiting longer ?

[drs305]

ok i managed to boot from the CD
actually i just forgot to press'c' at the beginning

soooo i tried the things you describe but i seem to fail to chroot into my real system
i mean how long is it supposed to take to mount sd ?
after i type the mount command, i waited for 30 minutes but it was still in process.
do u think there's a problem or shall i just be waiting longer ?

The partition should mount in less than 10 seconds.

i mean how long is it supposed to take to mount sd ?

I assume this is a typo and you are trying to mount sda2?

The commands for you should be (I added the unmount command for sda2 in case it's mounted):

sudo umount /dev/sda2
sudo mkdir /mnt/temp 
sudo mount /dev/sda2 /mnt/temp  
for i in /dev /dev/pts /proc /sys; do sudo mount -B $i /mnt/temp$i;  done
sudo cp /etc/resolv.conf /mnt/temp/etc/resolv.conf  # May be required to connect to the Internet.
sudo chroot /mnt/temp

[idealistic]

ok
i ; sure i follozed your procedure
sda2 is not mounted so i type sudo mkdir /mnt/temp and it creates the dirctory fine
but then : sudo mount /dev/sda2 /mnt/temp
and nothing happens
when i try to quit the terminal it says that there is still a process running

is there a way to fix that ?

[drs305]

is there a way to fix that ?

The most sure way is to reboot the LiveCD and start over. It would be better than trying to figure out which processes were mounted and trying to kill them.

[idealistic]

ok i tried burning a new cd and everything i still get the same thing (would not mount sda2)

i tried sudo fdisk -l

ubuntu@ubuntu:~$ sudo fdisk -l

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1           1        2047+  ee  GPT
/dev/sda2   *           1        9328    74920960   83  Linux
/dev/sda3            9328        9730     3227648   82  Linux swap / Solaris

does that help ?