/usr/bin/sudo lost execute permission on reboot

[mate2go]

Hi!

After upgrade to UM 19.10 my "/usr/bin/sudo"
lost on every reboot his execute function.

I tried out a workaround and add

chmod +x /usr/bin/sudo to rc.lcoal

but that did not help.

What can I do to fix that?

[wolfman]

Hi mate2go,

upgrade to Ubuntu Mate 20.04 as 19.10 is no longer supported!.

Ubuntu MATE 19.10 reaches end of life

As of July 17, 2020 Ubuntu MATE 19.10 will reach EOL (End of Life) and is no longer supported. There will be no more updates or security patches for this release. Being an interim release, these are only supported for 9 months . How do I check? See which version you are running by opening the System Monitor and checking the System tab. Or via the Terminal: cat /etc/os-release Still using 19.10? The upgrade path will be to the current LTS release, 20.04 , supported un…

[ugnvs]

Hello,
Is that possible that your user has lost his membership in sudo and/or adm group?

ugnvs@evm:~$ groups
ugnvs adm cdrom sudo dip plugdev lpadmin sambashare
ugnvs@evm:~$


[mate2go]

yes, that's it:

user1 adm disk voice cdrom audio dip video plugdev

How to add "sudo" to the group list? Is that right?

add to file /etc/group:

sudo:x:27:user1

?

can I remove voice from the groups list because I don't neet it.

[ugnvs]

1. Direct editing of /etc/group should work. Nevertheless, I'd prefer
   #adduser <existing user> <existing group>.

2. I avoid deleting my user from the groups which were assigned by the system. If voice is an application group then removing it from your user is probably safe enough.

[mate2go]

ok, thanks :-)!