exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb7

Question

I have a laptop hard disk which had dual boot of Ubuntu and Windows. Now I want to use it as an external disk. I used 2.5" case an used the USB cable to mount but it is unable to mount the ubuntu file system. its mounting windows partitions but not ubuntu.

I don't know what is the problem. I don't want to delete the data from ubuntu.

When I plug the disk it is showing the above image error.

And when I try to run:

sudo fsck /dev/sdb7
sudo fsck /dev/sdb7

I am getting the following errors:

Is there anything I can do to solve these issues?

Solution

If your hard drive isn't making noise and isn't broken, you need to find its absolute path.

lsblk

You need to find the process which is still being used.

ps -aux | grep /dev/sdXNumber

Take the first number which is the process ID and kill it.

sudo kill -9 ID_NUMBER_PROCESS

Retry to unmount the disk.

sudo unmount /dev/sdXNumbert

Comments

[Danibix]

Could you transcript your terminal errors into your question? It will make your question clearer.

[Sumeet Deshmukh]

What are you using to mount ext4 partition on Windows? Are you using Ext2fsd? Have you unmounted the partition from Ext2fsd before booting to Ubuntu? if you can provide anymore information that would be a lot help

[Anonymous]

I executed sudo e2fsck -f -b 32768 -y /dev/sdb7 and i got the following errors & no results. e2fsck 1.42.13 (17-May-2015) The filesystem size (according to the superblock) is 25714176 blocks The physical size of the device is 25652992 blocks Either the superblock or the partition table is likely to be corrupt! Abort? yes /dev/sdb7: ***** FILE SYSTEM WAS MODIFIED *****

[Sumeet Deshmukh]

I think you should update the question with this additional information that my answer didn't work