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Thread: how to safely uninstall another Ubuntu on dual boot


hi,
testing posposes installed mythbuntu (9.10) in dual boot next older (9.04) one.
want uninstall ofcourse grub loaded there, can't delete partition.
how can safely remove , come old grub?

if can boot older ubuntu not need chroot. x,y drive-x, partition-y if known or use sudo fdisk -l see partitions. note grub numbering different ubuntu or new grub.
old grub sda1=(hd0,0), partition numbering in old grub starts @ 0.

if need chroot:

sudo mount /dev/sdxy/mnt
in dev proc sys; mount --bind /$i /mnt/$i; done
sudo chroot /mnt

working install required reinstall grub or after chroot above:

grub
@ grub prompt:
find /boot/grub/stage1 #you response such root (hd0,5)
root (hdx,y) #use numbers previous command x drive, y partition
setup (hd0) # if drive0 or sda
quit

how restore ubuntu/xp/vista/7 bootloader (updated ubuntu 9.10)
http://ubuntuforums.org/showthread.php?t=1014708


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Installation & Upgrades [SOLVED] how to safely uninstall another Ubuntu on dual boot


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