So, I have important files in this hard drive, and I need pick up them. To sum up, I had two HD on my machine: one with Ubuntu GNOME 14.04 and another two with Windows 7. I had to connect another HD with windows replacing the other one with windows, copy some files from this hard drive. After that, I connected only this HD and formatted it. Ok, no problem beyond a grub-rescue shell appearing, but I solved changing the boot order of the hard drives (no idea how).
Now, I need to pick up those files and place them into the windows hard driver, but again the grub-rescue shell. This time, I tried almost everything, mount it using a Live CD, some stuff in the grub-rescue, changing boot order, nothing. It's not even mounting it when I use windows or a live cd. In that first case, I hadn't a usb stick, but now I got one, I only want to mount the linux hard driver and copy those files.
Yes, I've searched for questions like this one here but didn't solved nothing...
So, here are some information and things I tried:
ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000285b2
Device Boot Start End Blocks Id System
ubuntu@ubuntu:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 149.1G 0 disk
sr0 11:0 1 2G 0 rom /cdrom
loop0 7:0 0 935.2M 1 loop /rofs
ubuntu@ubuntu:~$ blkid
/dev/sr0: LABEL="Ubuntu 14.04 LTS i386" TYPE="iso9660"
ubuntu@ubuntu:~$ sudo mount -t ext4 /dev/sda /mnt
mount: wrong fs type, bad option, bad superblock on /dev/sda,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
(this one I tried ext2, ext3, nothing changed)
ubuntu@ubuntu:~$ sudo fsck /dev/sda
fsck from util-linux 2.20.1
e2fsck 1.42.9 (4-Feb-2014)
ext2fs_open2: Bad magic number in super-block
fsck.ext2: Superblock invalid, trying backup blocks...
fsck.ext2: Bad magic number in super-block while trying to open /dev/sda
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
Then I tried:
ubuntu@ubuntu:~$ sudo e2fsck -b 8193 /dev/sda
e2fsck 1.42.9 (4-Feb-2014)
e2fsck: Bad magic number in super-block while trying to open /dev/sda
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
And:
ubuntu@ubuntu:~$ sudo e2fsck -b 32768 /dev/sda
e2fsck 1.42.9 (4-Feb-2014)
e2fsck: Bad magic number in super-block while trying to open /dev/sda
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
I tried other things like:
ubuntu@ubuntu:~$ sudo grub-install --root-directory=/mnt /dev/sda
Installing for i386-pc platform.
grub-install: error: failed to get canonical path of `/cow'.
ubuntu@ubuntu:~$ parted -l
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Error: Can't have a partition outside the disk!
I tried too something in the grub-rescue shell, like:
grub-rescue> ls
(hd0)
Then I tried:
grub-rescue> ls (hd0)
And it said that the fylesystem is unknown, so I tried this (where n is any number between 1 and 8):
grub-rescue> ls (hd0,n)
Then I got there's not such partition, so I tried too:
grub-rescue> set prefix=(hd0)/boot/grub
grub-rescue> set root=(hd0)
grub-rescue> insmod (hd0)/boot/grub/i386-pc/linux.mod
Before I go on, I've stopped here because it says something about filesystem unknown (I tried too insmod (hd0)/boot/grub/linux.mod but didn't worked as well)
If I need solve this using windows I do can connect both hard drives and use the one with windows (puting it as priority at the BIOS).
Sorry if you don't understand something I said, I do not have a pretty good english... I tried to be as specific as possible... I really need those files, I was ready to format this hard drive, only finishing some stuff, I don't might if I loose the system, I just want those files.
Update:
I tried to mount the linux hard drive with Paragon ExtFS (a read and mount program for ext2, ext3, etc, hard driver) at Windows, but even there the HD wasn't mounting....
