On Tue, 23 Jun 2020, Konstantin Olchanski wrote: > On Tue, Jun 23, 2020 at 10:49:48AM +0200, Elio Fabri wrote: >> Hi all, >> I need help (at lest a link) as to how to recover my root password. >> I'm using SL6.2. The password I remember by heart is no longer >> accepted, neither for the su command nor for sudo. >> Thx > > While you cannot "recover" the root password, if you have physical access > to the machine, you can bypass it, login as root and reset the password: > remove the boot disk from problem machine, attach it to a 2nd computer, > mount the root partition, go to root/.ssh and install your ssh key. unmount, > reassemble problem computer, boot, ssh into root, done. While the boot disk > is mounted on the 2nd computer, in addition to installing the ssh key, > you can also reset the password (edit /etc/shadow) or setup "sudo" for > password-less "sudo root" (recent Ubuntu are setup this way, you never actually > use the root password to login into root). If you remember the BIOS password, or never set one, you can boot from an install or rescue disk/memory stick, and do that "second computer" stuff without moving the disk to another machine. -- Andrew C. Aitchison Kendal, UK [log in to unmask]