I want to recover some files in my home directory using extundelete
This tool needs to unmount the device before start to work, but I cannot umount /home:
$ sudo umount /home
umount: /home: not mounted3 Answers
You can enter single user mode for such operations by adding 's' to the end of grub boot line edit or run sudo init 1. there you can umount /home, if again get errors run sudo umount -fl /home. -f force and -l disconnect in lazy!
WARNING: LOGGING IN TO A SYSTEM AS ROOT MAY CAUSE VERY SERIOUS TROUBLE.
Make sure /home is in its own partition, not just a directory under /. to find out, just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command below:
sudo df -l You need to logged in as root to be able to accomplish your task.
to enable root account (WARNING: NOT ADVISABLE), just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command below:
sudo passwd rootYou will have to enter a ppasword to complete the action. Once you're done, MAKE SURE THAT YOU DISABLE ROOT, by running:
sudo passwd -dl rootTo undelete files and directories from ext3/ext4 partitions using extundelete or any other recovery software the partition where the files are on need to be unmounted. See also this question:
However we can not unmount the partition where our OS or HOME resides while we had booted from this partition or are logged in to work in a HOME which may also be on a different partition. Only if the user we are logged in has their home on a partition different to the HOME we want to recover unmounting may be possible.
In all other cases any undelete or recovery needs to be performed from a live system booting Ubuntu from CD or USB choosing "Try out Ubuntu". Then we also have to make sure to not mount our partitions while working in our live environment. Note that extundelete can be temporarily installed in a live sytem too.
