I've got this problem:
I have one hdd and use ubuntu 12.10 on this hdd with several partitions(one nfts, two ext4 and one unallocated). today after windows 7 installation, and booting with live usb, i see that the ubuntu partition is gone. No ubuntu boot. testdisk says:
P HPFS - NTFS 12 223 20 6361 253 36 101998592
P HPFS - NTFS 15887 1 4 87965 254 59 1157949065 [XYZ]
L Linux 87966 1 1 91200 254 59 51970208
so any idea how to recover the partition or the data from it?