[Installation] ''Unknown error when mounting /dev/sda2'', FEAR of losing my files.

[Akito El Perro]

Hi guys!

I'm REALLY new to Linux and so far had no trouble installing Lubuntu in my netbook.

Today I installed Kubuntu in my main desktop pc, in its own 120 GB SSD that had Windows before. I selected the option to "use entire drive" so there's no trace of any Windows left.

I use a separate 1 TB HDD for storage of all my files, and when I went to fetch them already having installed Kubuntu, it says: ''Unknown error when mounting /dev/sda2''.

PIC 1: https://i.imgur.com/RiD8Hh2.jpg

I have no idea what mounting a disk is and I'm trying to comprehend some basic tutorials but they ain't helping me.

Doing sudo fdisk -l shows this:

PIC 2: https://i.imgur.com/yVLtIUC.jpg

KDE Partition Manager shows this:

PIC 3: https://i.imgur.com/Hf0qBt8.jpg

I tried to mount it as a fellow redditor adviced me on subreddit about Linux, and I got this:

PIC 4: https://i.imgur.com/mQAWpWZ.jpg

Output of lsblk -f says this:

PIC 5: https://i.imgur.com/BI4ZLXE.jpg

Why is this happening? Did I botch the installation or something?

I'm really freaking out because I was supposed to work today but I can't access my files, I can't go to sleep until I solve this and it's already 22:00 here.

I would really appreciate a little bit of help, I wish I knew about this mounting disks thing before I switched OSs :/

[oshunluvr]

It's not going to mount with a bad superblock error. I noticed you tried to mount like fdisk shows sda1 but lsblk says sda2 is the NTFS partition. It's possible the partition table got trashed somehow. You might just try mounting sda2.

I'm not sure, but maybe you just haven't installed NTFS support. It's not a native Linux format. Try installing ntfs-3g package and see if you get a different result.

If that doesn't work, the file system may be corrupted. The type "SFS" is worrisome - thats not a normally used file system. Assuming you installed to sdb drive and installed sdb is your boot device, you're probably going to have to start looking into recovery if nothing above works.