Does LVM option delete existing operating systems?

Question

I accidentally clicked this option when installing 12.10. Now, I am not seeing my other operating systems show up. I tried fgrep menuentry /boot/grub/grub/.cfg and only see Ubuntu. When I checked my partitions using fdsik, I saw that there are three partitions still.

If the operating systems are still there, how would I be able to access them?

Answer 1

Can you describe clearly? What is yoru other operating system? Linux or Windows？

You can need to activate the existing volume groups if you access the existing file systems (partitions / logical volumes), for example, if you boot from system rescue CD and want to access the volume group and logical volumes, you need to do the following:

vgchange -a y

Then you can show the logical volumes and mount the logical volumes

lvdisplay

mount -t fs_type /dev/volume_group_name/logical_volume_name /mnt/mount_point

Anyway, you need to provide more information before we can help.