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Re: grub lost, please help

Ioannis Vranos

2008-03-26

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Donny George wrote:
> windows was installed first, and ubuntu was installed after that, so no
> issues with mbr i believe


Well here is what I think will fix your issue, but I do not provide any
guarantees that it will work in your case. Make a backup of your
critical data before proceeding, so as to be on the safe side.


Type "sudo -i" in console.

Use df -h to see the active Linux partitions. For example in my system
they are:

root@(protected)
Filesystem        Size Used Avail Use% Mounted on
==> /dev/hdc3         292G  15G 263G  6% /
varrun           506M 136K 506M  1% /var/run
varlock          506M   0 506M  0% /var/lock
udev            506M 104K 506M  1% /dev
devshm           506M   0 506M  0% /dev/shm
lrm             506M  34M 472M  7%
/lib/modules/2.6.22-14-generic/volatile
==> /dev/hdc2         942M  35M 860M  4% /boot
root@(protected):~#



Use "fdisk /dev/hdc" where hdc your real Linux disk which you can find
out from the above. In it type "p" and press enter to see all the Linux
partitions.

Verify that the "/boot" or "/" partition is flagged bootable. If not use
the "a" option to make it bootable ("m" shows all the available options).


If you made changes, enter "w" so as to write them and quit, else enter
"q" to exit fdisk without saving any changes.


Use "fdisk /dev/hdd" where hdd your real Windows disk. Type "p" to see
all the partitions. Use "a" to remove the bootable flag on any partition
that has it, in the Windows disk.

Type "w" to save the changes, and then reboot.


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