I've searched and searched and cannot find the solution to my locked out problem
I was using Ubuntu on my home computer three years ago for remote work and have not tried to log in since then. Now I'd really like to login again.
I boot my computer using the last recovery kernel available (it's ubuntu 10.something but I don't think the version is really the problem)
I select the boot to root shell then try to reset my password
I get an error message:
"Authentication token manipulation error"
I try all the various fixes in all the searches, i.e.
I check write permission for / and /etc both are rw for root
I still try the mount command, >> mount -o rw,remount /
but that produces an error saying I cannot remount
OK so I check write permissions for /etc/passwd and /etc/shadow, both are rw for root. Both files have an entry for acorn user and the shadow file has a long encrypted string in the password field (second from username)
What can I do?
I've read all sorts of posts about copying the shadow file, using some utility to delete the shadow file, logging in using ssh, etc.
None of these solutions seems right. I don't have a backup and so I'm hesitant to just go in and muck with these files. Not sure if I can copy all the Ubuntu stuff from Windows side (I have a terabyte standalone drive so space isn't an issue)
Right now I'm posting this from the Windows side.
Does anyone have any suggestions?