Grub bootloader goes fail to boot in dual boot system after installing Ubuntu 12.10

Posted by K.K Patel on Ask Ubuntu See other posts from Ask Ubuntu or by K.K Patel
Published on 2012-10-20T04:40:07Z Indexed on 2012/10/20 5:21 UTC
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grub2

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12.10

I had 12.04 with my dual boot system. Yesterday I downloaded Ubuntu 12.10 make bootable USB and choose Upgrade option in Installer. After installation Grub failed to boot my machine. I tried following to fix grub bootloder . Same problem I fixed with Ubuntu 12.04 using live USB but this solution not work for Ubuntu 12.10. Now coming at exactly where this solution goes fail.

I followed this steps after booting Live USB and opening terminal.

1) sudo fdisk -l to see where Linux is installed

2) sudo mount /dev/sda9 /mnt where sda9 is my linux partition

3) sudo mount /dev/sda9 /mnt/boot

4) sudo mount --bind /dev /mnt/dev

5) sudo chroot /mnt (No problems with this steps done perfectly)

6) grub-install /dev/sda when I type command I got error that

source_dir doesn't exist Please specify --target or --directory

How can I solve this ?

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