On 7 Mar 2013, at 05:12, g wrote: > greetings. > > system is an install of sl6.3 i386 from a livedvd. > > during attempt to create another 'livedvd 2 usb', i have run into an > interesting problem after getting knocked out of grub booting. > > long story to short, booted 6.3 livecd installation. > > mount /dev/sdb2 -t ext4 /media/livedvd > cd /media/livedvd/etc > > removed passwords from '/etc/shadow', > > cd /boot/grub > > modified '/boot/grub/grub.conf' to include 'livedvd' @ hd1,1. > > ran; > > grub-install /dev/sda > > then rebooted system. > > now, i can boot into livedvd installation, but i can not restore > passwords. > > attempts where made from level 5, down to level 1. all failed with > error message; > > passwd: Authentication token manipulation error. > > so how do i go about setting passwords back?
try to replace it (use chroot and passwd) instead of just removing it. also, you may not need the live CD, just boot with init=/bin/bash and then mount -oremount,rw / So much for security if you haven't set a grub password ;-) Cheers, Sergio -- Sergio Ballestrero - University of Johannesburg, Physics Department ATLAS TDAQ sysadmin team
