Ubuntu – How to start Ubuntu in Safe Mode

Solution was simple problem was that Windows has that new type of shutdown (hibernate) so my HDD was still mounted in windows so Ubuntu couldn't load partitions.

Solution is simple and if you have this problem you can do next in Windows :

1. Right click on desktop, New->Shortcut
2. In new window type: shutdown /s /t 0
3. Click Next and type any name you wish
4. Double click on that icon and your Windows will fully shutdown and you will be able to run Ubuntu.

A mounted volume isn't "clean", this is absolutely normal. Only unmounted volumes (or volumes mounted read-only) are to be expected to be "clean". Most probably there isn't the slightest problem with your filesystems.

From the man page:

Note that in general it is not safe to run e2fsck on mounted filesystems. The only exception is if the -n option is specified, and -c, -l, or -L options are not specified. However, even if it is safe to do so, the results printed by e2fsck are not valid if the filesystem is mounted. If e2fsck asks whether or not you should check a filesystem which is mounted, the only correct answer is ``no''. Only experts who really know what they are doing should consider answering this question in any other way.

Check and fix your filesystem while booting from another medium (like a USB thumb drive). Checking the disks while they are mounted makes no sense at all and fsck output means nothing.