Ubuntu
grub2 package

Grub Fail to Load ubuntu

Asked by frozenflames

i use to have dual boot windows 7 and Ubuntu 10.04 lucid but i reinstall window 7 and now i can only log in to windows 7 i dont get the boot options on the start up where i use to chose between windows and ubuntu :( any help to fix it

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Revision history for this message
Mario Tomljenović (tomljenovicmario) said : 		#1

You have to reinstall GRUB from Live CD:

https://help.ubuntu.com/community/Grub2#Reinstalling GRUB 2

Revision history for this message
frozenflames (oracleandoracle) said : 		#2

ubuntu@ubuntu:~$ grub-install -v
grub-install (GNU GRUB 1.98-1ubuntu5)

ubuntu@ubuntu:~$ sudo su
root@ubuntu:/home/ubuntu# aptitude install grub-pc
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
Writing extended state information... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done

root@ubuntu:/home/ubuntu#

nothing happens after that no new menu r anything????

Revision history for this message
Mario Tomljenović (tomljenovicmario) said : 		#3

1.) Start Live CD.

2.) Open Terminal.

3.) Type: fdisk -l

If you are not sure type: df -Th

4.) Find the Ubuntu partition (look for ext2, ext3 or ext4 filesystem)

5.) Mount that partition: sudo mount /dev/sdXY /mnt

For example, if Ubuntu is on sda1 type: sudo mount /dev/sda1 /mnt

6.) Mount devices: sudo mount --bind /dev/ /mnt/dev

7.) Chroot into your hard drive: chroot /mnt

8.) Reinstall GRUB 2: grub-install /dev/sdX

For example, if Ubuntu is on sda1, type: grub-install /dev/sda (do not write number of the partition!!)

9.) Check installation: grub-install --recheck /dev/sdX

For example, if Ubuntu is on sda1, type: grub-install --recheck /dev/sda (do not write number of the partition!!)

10.) Turn of chroot: CTRL+D on you keyboard.

11.) Unmount devices: sudo umount /mnt/dev

12.) Unmount the last device: sudo umount /mnt

Reboot.

Revision history for this message
frozenflames (oracleandoracle) said : 		#4

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 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: 0xea7dea7d

   Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 102400 7 HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sda2 13 3549 28402852 7 HPFS/NTFS
Partition 2 does not end on cylinder boundary.
/dev/sda3 5228 30400 202202092 f W95 Ext'd (LBA)
Partition 3 does not end on cylinder boundary.
/dev/sda5 5228 10454 41985846 7 HPFS/NTFS
/dev/sda6 10455 15681 41985846 7 HPFS/NTFS
/dev/sda7 20909 30400 76244458+ 7 HPFS/NTFS
/dev/sda8 15682 16180 3999744 82 Linux swap / Solaris
/dev/sda9 16180 16240 487424 83 Linux
/dev/sda10 16240 17260 8193024 83 Linux
/dev/sda11 17261 19535 18271762+ 83 Linux

root@ubuntu:/# df -Th
Filesystem Type Size Used Avail Use% Mounted on
aufs aufs 1007M 50M 957M 5% /
none devtmpfs 1002M 304K 1001M 1% /dev
/dev/sr0 iso9660 700M 700M 0 100% /cdrom
/dev/loop0
          squashfs 672M 672M 0 100% /rofs
none tmpfs 1007M 176K 1006M 1% /dev/shm
tmpfs tmpfs 1007M 60K 1007M 1% /tmp
none tmpfs 1007M 92K 1006M 1% /var/run
none tmpfs 1007M 4.0K 1007M 1% /var/lock
none tmpfs 1007M 0 1007M 0% /lib/init/rw
/dev/sda10 ext4 7.7G 3.8G 3.6G 52% /media/c14fae1f-80a9-4f4a-bcdc-b3aa1a946f0b
/dev/sda1 fuseblk 100M 25M 76M 25% /media/60DA01F3DA01C66E
/dev/sda10 ext4 100M 25M 76M 25% /mnt
/dev/sda1 fuseblk 100M 25M 76M 25% /mnt

root@ubuntu:/# sudo mount /dev/sda10 /mnt
root@ubuntu:/# sudo mount --bind /dev/ /mnt/dev
root@ubuntu:/# chroot /mnt
root@ubuntu:/# grub-install /dev/sda
/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
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Is device-mapper driver missing from kernel?
/proc/devices: fopen failed: No such file or directory
Failed to set up list of device-mapper major numbers
/proc/devices: fopen failed: No such file or directory
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/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
Is device-mapper driver missing from kernel?
/proc/devices: fopen failed: No such file or directory
Failed to set up list of device-mapper major numbers
/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
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/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
Is device-mapper driver missing from kernel?
/proc/devices: fopen failed: No such file or directory
Failed to set up list of device-mapper major numbers
/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
/proc/devices: fopen failed: No such file or directory
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/proc/devices: fopen failed: No such file or directory
Installation finished. No error reported.

still cant see the boot menu any help :(

Revision history for this message
Mario Tomljenović (tomljenovicmario) said : 		#5

You have to select partition on Which Ubuntu is installed, and that is /, not /home or something else. Try again step by step, I´m sure it will work if you do it right.

Revision history for this message
wojox (wojox) said : 		#6

Did you follow these directions? I had that problem a while back and this corrected it.

https://help.ubuntu.com/community/Grub2#Reinstalling%20from%20LiveCD

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