sudo privileges elevation doesn't work

[seregaizsbera]

Far 2.2 build unknown-alpha Linux x86_64
Enable sudo privileges elevation on
CentOS 8 Linux 4.18.0-193.19.1.el8_2.x86_64
Putty4far2l

$ groups
adm wheel systemd-journal docker sudoers

Steps to reproduce

1. cd /etc
2. F4 under file hosts
3. Enter some text
4. F2

Expected behavour

Privilege escalation dialog appears

Actual behaviour

Editor Error 5 Cannot save the file hosts. Retry Cancel

[elfmz]

This can be for example if your installation missing far2l_sudoapp/far2l_askpass
These are symlinks to far2l itself located in .../lib/far2l (there is also Plugins directory), and needed to function elevation properly

[seregaizsbera]

Made these symlinks manually and it worked. Thanks a lot.

[elfmz]

but how you installed far2l and got them missing?

[seregaizsbera]

Easy.

sudo -i
cd /etc/yum.repos.d
wget https://copr.fedorainfracloud.org/coprs/polter/far2l/repo/epel-8/polter-far2l-epel-8.repo
dnf -y install far2l

[elfmz]

aha, then its a bug of package and need to complain that.. polter?

[seregaizsbera]

definitely so

[c1tyguide]

Greetings, the same problem with OpenSUSE 13.1 and far2l-2.4.0.0+git.9944c5ce-lp152.13.1.x86_64.rpm
Making far2l_sudoapp/far2l_askpass symlinks is not calls sudo dialog.
But on Leap 15.1 and higher this works like a charm
...
Solved
By adding newer version of libstdc++ and patch far2l binary with patchelf