On Mon, Mar 23, 2020 at 8:35 AM Łukasz Posadowski
<mail@xxxxxxxxxxxxxxxxxxx> wrote:
> Mon, 23 Mar 2020 02:26:39 -0400 David <dlocklear01@xxxxxxxxx>:
>
>> But now, I get a sudo error message when logged in
>> the normal way as admin or sole user.
>>
>> * sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid
>> bit set*
>>
>> What do I need to do to fix that ?
>
> You could boot from some Live distro (Fedora Workstation Live will
> do), mount your root partition inside /mnt/fedora/root and do
> something like:
>
> find /mnt/fedora/root/usr/bin/ -type f -exec chmod 755 {} \;
>
> but I fear manually searching for every broken permission in every
> directory would take days. If You manage to fix a host enough to
> work, try to reinstall packages with dnf, which will set correct
> permissions. 775 is a little more than needed.
>
> Or You could install Fedora on some virtual machine, update it and
> rsync /usr dir onto Your broken installation.
>
> Sort of:
> rsync -vaxAXHSz --delete --dry-run /usr ip.of.broken.host:/usr
> and then
> rsync -vaxAXHSz --delete /usr ip.of.broken.host:/usr
>
> I'll bet that's not enough to fix it, but it would be fun to try. If
> you have time for it. If not, just reinstall.
Before booting from a live system or re-installing, I'd boot with
"single" or "rd.break=pre-pivot" appended to the kernel cmdline,
change the sudo mode, reboot in multi-user mode, re-install sudo, and
check the integrity of all installed packages (rpm -Va).
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