Arch Linux

quyet

Member

Registered: Today

Posts: 1

Get su: Authentication failure when su with right password

I logged in successfully yesterday, checked password in plain text and use copy/paste to ensure typing it correctly. I also cannot log in from TTY, get Login incorrect.

Before this happened, I remember updating & installing base-devel package. I encountered this problem when makepkg an AUR. I also notice that sudo is installed and makepkg output says my user is not a sudoer.

Please give me a point to find the reason why it happens. I have not done any password reset, and do not need to reset it right now. Thank for your help!

Last edited by quyet (Today 16:54:50)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,879

Re: Get su: Authentication failure when su with right password

Su will ask you for the root password, not yours.
https://wiki.archlinux.org/title/Sudo

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