If you lose your password to your machine, and aren’t able to reset the password for your VM thru the mycloud control panel, then it’s possible to do this manually by putting the server into rescue mode and chrooting. Here is how ;
1. Put server into rescue mode. Noting the root password autogenerated for the rescue mode.
mount /dev/xvdb1 /mnt
4. Chroot to the ‘old’ original disk
5. Change the root passwd
7. Take the server out of rescue mode.
8. You should now be able to login to the server using the new root password. (done in the same way as putting it into rescue mode)