I have a dual-boot windows 8 and Ubuntu with a NTFS data partition on my laptop.
After a forced migration to windows 10, my computer restarted on grub rescue mode and i was enable to boot on ubuntu or on windows.
error: no such partition.
Entering rescue mode...
grub rescue>
So i have tried to reinstall grub with boot-repair on live USB but it didn't work and my computer now boot directly on windows ...
Current partition info (bootInfo):
Disk /dev/sda: 512.1 GB, 512110190592 bytes
255 heads, 63 sectors/track, 62260 cylinders, total 1000215216 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 718,847 716,800 7 NTFS / exFAT / HPFS
/dev/sda2 718,848 208,764,927 208,046,080 7 NTFS / exFAT / HPFS
/dev/sda3 826,302,464 1,000,214,527 173,912,064 5 Extended
Invalid MBR Signature found.
/dev/sda5 ? 1,524,864,998 5,236,647,937 3,711,782,940 c0 CTOS
/dev/sda6 ? 5,092,567,351 8,619,976,874 3,527,409,524 c5 DRDOS secured Extended
/dev/sda4 208,764,928 826,302,463 617,537,536 7 NTFS / exFAT / HPFS
/dev/sda5 ends after the last sector of /dev/sda
the logical partition /dev/sda5 is not contained in the extended partition /dev/sda3
/dev/sda5 overlaps with /dev/sda6
/dev/sda6 ends after the last sector of /dev/sda
the logical partition /dev/sda6 is not contained in the extended partition /dev/sda3
/dev/sda1 -> MBR (partition correctly reconized)
/dev/sda2 -> OS windows (partition correctly reconized)
/dev/sda3 -> Extended partition
-> /dev/sda5 Logical Ubuntu partition (proably /)
-> /dev/sda6 Logical Ubuntu partition (probably /home)
On gparted, i see /dev/sda3 but logical partition isnt displayed
/dev/sda4 -> NTFS data partition
On gparted, got following error when i try to mount this partition (can't mount this partition on windows too ...) :
Unable to detect file system! Possible reasons are:
- The file system is damaged
- The file system is unknown to GParted
- There is no file system available (unformatted)
- The device entry /dev/sda4 is missing
Full BootInfo => http://pastebin.com/raw/FCr1WWCW
Current partiton info (fdisk):
Invalid flag 0x3261 of EBR (for partition 5) will be corrected by w(rite).
label: dos
label-id: 0x8858596d
device: /dev/sda
unit: sectors
/dev/sda1 : start= 2048, size= 716800, type=7, bootable
/dev/sda2 : start= 718848, size= 208046080, type=7
/dev/sda3 : start= 826302464, size= 173912064, type=5
/dev/sda4 : start= 208764928, size= 617537536, type=7
/dev/sda5 : start= 1524864998, size= 3711782940, type=c0
Scan with gpart : => http://pastebin.com/raw/2N4ZDTvL
What i have to do now to recover my NTFS data and linux partition ?
Thx for help (and sorry for my english).
