Partition sector doesn't have the endmark 0xAA55

[sangeetha821]

In gparted disk is showing unallocated.
in testdisk Partition sector doesn't have the endmark 0xAA55 and my partition is correct in drive
and bootinfoscript result overlaps in partition

[oldfred]

Bootscript is not really showing any MBR at all. MBR is boot code & partition table and it looks like random data which bootscript is trying to report as a partition table.

If test disk can restore a partition table that would be a good choice, but you will still have to reinstall a boot loader.

[sangeetha821]

how to re-install boot loader.

[oldfred]

You need to restore a valid partition table first and have Ubuntu installed so it can find the rest of grub.
If just Windows it only looks at partition table for boot flag, but again you have to have valid partition table first.

How to restore the Ubuntu/XP/Vista/7 bootloader
https://help.ubuntu.com/community/RestoreUbuntu/XP/Vista/7Bootloader
https://help.ubuntu.com/community/Grub2/Installing#Fixing_a_Broken_System
Reinstall grub2 - Short version & full chroot version
https://help.ubuntu.com/community/Grub2#Reinstalling GRUB2


Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
https://help.ubuntu.com/community/Boot-Repair

[sangeetha821]

i got my linux back.. i restore my linux partition and re-install grub. after reboot everthing k. thanks a lot...