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command sudo usermod -aG <newgroup> <user> behaves like usermod -G in shadow-utils 4.8.1 #921

Open mgw2013 opened 7 months ago

mgw2013 commented 7 months ago

I'm afraid, this looks like a bug...

command sudo usermod -aG <newgroup> <user> behaves like usermod -G in shadow-utils 4.8.1 i. e. all group access for <user> is removed and only <newgroup> is added.

Among others the result was I threw myself out of the sudo group and had to restore everything manually with a life stick...

System: michael@W520 ~ $ inxi -Sz System: Kernel: 5.15.0-91-generic x86_64 bits: 64 Desktop: Cinnamon 5.8.4 Distro: Linux Mint 21.2 Victoria man and info reporting shadow-utils 4.8.1 11/24/2022

alejandro-colomar commented 7 months ago

You mean that the bug was introduced in (or slightly before) 4.8.1? Do you have other shadow versions available? Did you upgrade recently?

mgw2013 commented 7 months ago

@alejandro-colomar
Unable to answer ur 1st question. No shadow versions. The system is on latest release and is fully updated System: Kernel: 5.15.0-91-generic x86_64 bits: 64 Desktop: Cinnamon 5.8.4 Distro: Linux Mint 21.2 Victoria