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I ssh to my Raspberry Pi running Raspian from my mac and try to run tmux, but I'm getting this error:

tmux: need UTF-8 locale (LC_CTYPE) but have ANSI_X3.4-1968

As suggested elsewhere, I commented

#   SendEnv LANG LC_*

in /etc/ssh/ssh_config on my macbook and 

#AcceptEnv LANG LC_*

in /etc/ssh/sshd_config on the Raspberry Pi. Both should prevent the Pi from getting a hickup because of the locale on the mac.

The output of locale is this:

LANG=
LANGUAGE=
LC_CTYPE="POSIX"
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

It has sometimes been en_GB.UTF-8 instead of POSIX, don't know why that keeps changing. In /etc/default/locale I added 

LC_ALL=en_GB.UTF-8

but that doesn't seem to have any effect.

Exporting LC_ALL=en_GB.UTF-8 on the command line does work and I guess I could put it in .bashrc, but that seems like a cheap hack for something where there should be a sound solution. I ran locale-gen and raspi-config/localization a zillion times and rebooting, without a lasting effect.

How is localization configuration done properly?

user1785730
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1 Answers1

1

This issue can have multiple causes. Apart from improperly configured locales and SSH env settings which have already been covered here, my particular case was solved by setting UsePAM yes in /etc/ssh/sshd_config. This was the default setting, but the Foundation Security Documentation recommended changing it to no.

mniess
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