I have a guest with Mageia 4 Beta 2 when during a update I by accident changed the passwordfile.
That does made it impossible to logg in at the system. It's impossible to loggin as root as yourself.
Is there a way that I can conect to the system and repear the passwordfile?
Only a guess. Take a look at https://forums.mageia.org/en/viewtopic.php?f=7&t=6346 to see whether this helps.
André
If you know how-to fix the password file then I think you can just use a simple linux live CD, like for example an ubuntu live CD. Boot from the live CD, fix the password file and shutdown to reboot into mageia.
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Wil