lost administrative passwd for ubuntu, fix?
- 1 month ago
There are a couple ways you could fix it.
Method one would be to boot an Ubuntu LiveCD or USB. Open the terminal and enter "sudo su". This should give you root access. You don't need a password on a LiveCD. Then create a mountpoint for your root partition:
Then mount the root partition (your partition may have a different designation, this is just an example):
mount -o rw /dev/sda1 /mnt/root
Use the chroot command to access the root partition and allow you to run programs on it:
Finally, run the passwd command to change the password for the admin user
Method two is slightly simpler, but looks scarier. When the GRUB boot menu appears, hit 'e' to temporarily edit the entry. There should be a line that says something like
"linux /boot/vmlinuz-4.x.x.x.x-generic blah blah blah"
If there is an "init=<something>" option, change it so that it says "init=/bin/bash". If the init option is not there, add it on the same line as "linux." Then press F10 to boot. You should be dropped to a Bash shell very quickly. Once it loads, just enter
"mount -n -o remount,rw /" and then "passwd admin"