Mount a disk partition in Ubuntu with read-write permission

README.md

Given that you have a disk partition pointed at /mnt/01DAB4...

sudo mount -o remount,rw /mnt/01DAB4...

will mount the partition with read and write permission.

This helps in fixing below issue

unable to open /var/lib/...: Read-only file system

If you have dual boot (Windows + Ubuntu) and if the Windows did not shut down properly or shut down all of a sudden (electricity outage) while some apps are used/files are read/written then you might face above or below error.

Cannot remove /path/to/dir: Directory is not empty

There are multiple solution to this problem. You can choose any one at time.

1. Shut down Ubuntu + Turn on computer and open Windows. Ensure all apps are closed and shut it down and then turn on computer and choose Ubuntu
2. Follow https://askubuntu.com/a/935301
3. Follow https://gist.github.com/SOHELAHMED7/68729c0a44c77a4d88cf1a07a67be5b5?permalink_comment_id=5175500#gistcomment-5175500

Continuing from https://gist.github.com/SOHELAHMED7/68729c0a44c77a4d88cf1a07a67be5b5?permalink_comment_id=5175496#gistcomment-5175496

1. Go to Disks desktop app in Ubuntu
   

2. Select/click your storage disk

3. Select the partition you are facing errors with in Volumes section

4. Click on settings icon (bottom left corner in Volumes section)
   

5. Click "Repair Filesystem"

6. Mount the partition

The problem is solved. Here you don't need to switch back to Windows.