Unable to Mount into Ubuntu 12.04

lzb · 01-28-2014, 09:41 PM

After successfully reinstalled windows 7 without reformat, I was unable to boot into ubuntu 12.04 OS.

The error message was :
<initramfs> Unable to find a medium containing a live file system

My pc is a dual-boot machine which consist of windows 7 pro and ubuntu 12.04.

Please guide me to resolve this problem, thank you.

j-ray · 01-29-2014, 01:46 AM

That's usual Windows behaviour. Put in an ubuntu cd if you have and boot from that. Maybe it offers you a sort of rescue mode that enables you to repair the booting. I do not know the exact procedure in 12.04 but it should work rather easily. Maybe you have to follow the install procedure until Ubuntu detects that there already is a working installation...

Good luck
j

+ Welcome to LQ, lzb!

albinard · 01-29-2014, 05:29 PM

If you still have the Live 12.04 CD (or DVD), boot from it and follow this process:

Mount the Ubuntu partition: sudo mount /dev/sdaX /mnt

Run grub-install: sudo grub-install –root-directory=/mnt/ /dev/sda

Reboot, then run sudo update-grub

The reinstallation of Windows reset the boot order and hid your Ubuntu partition. This will bring it to the fore.

lzb · 01-29-2014, 08:22 PM

Thank you j-ray, albinard
after entering the command, an error popup

sudo grub-install --root-directory-/mnt /dev/sda4
grub-setup: warn: Attempting to install GRUB to a partitionless disk or to a partition, this is BAD idea..
grub-setup: warn: Embedding is not possible GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discourage..
grub-setup: error: will not proceed with blocklists.