grub lost, please help

[Ioannis Vranos]

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 at john-desktop:~# df -h
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 at john-desktop:~#



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.