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WIfi adapter not found and software updater not working

fr flag

I am trying to change the permissions of a folder on my PC and I mistakenly ran:

sudo chmod -R 777 /

without indicating the directory, and now sudo isn't working. It's showing:

/usr/bin/sudo must be owned by uid 0 and have the setuid

I tried some suggestions found on this forum and am able to fix it through the boot up recovery mode, but not most of the applications don't work. The Wi-Fi is not working anymore. It's showing:

No Wi-Fi adapter found

Also Software & Updates is not working anymore.

Is there anyone that can help me? I would appreciate that.

karel avatar
sa flag
Does this answer your question? [/usr/bin/sudo must be owned by uid 0 and have the setuid bit set](https://askubuntu.com/q/452860/)
guiverc avatar
cn flag
Restore files from a backup; or you can take note of what permissions/file-stats exist on those backup files & use that as a template of how to reverse the changes (*that is possibly a good learning exercise*)... An alternative is to re-install (which needn't overwrite files & it can auto re-install your *manually installed* if from Ubuntu repositories too if you don't format; but restore will be necessary if you're using server apps!)
mangohost

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