How to remove system locales, as oppose to package locales as asked in How to remove unnecessary locales??
I'm getting the following errors recently:
locale: Cannot set LC_ALL to default locale: No such file or directory
The only en locale I have in my system:
$ grep -r en /var/lib/locales/supported.d/*
/var/lib/locales/supported.d/local: en_US ISO-8859-1
/var/lib/locales/supported.d/local: en_US.UTF-8 UTF-8
$ locale -a | grep en
en_US
en_US.iso88591
en_US.utf8
but not en, as complained by perl:
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "",
LC_ALL = (unset),
LC_MEASUREMENT = "en",
LC_PAPER = "en",
LC_MONETARY = "en",
LC_NAME = "en",
LC_ADDRESS = "en",
LC_NUMERIC = "en",
LC_TELEPHONE = "en",
LC_IDENTIFICATION = "en",
LC_TIME = "en",
LANG = "C"
So I add the locale en by:
% locale-gen en
Generating locales (this might take a while)...
en_AG.UTF-8... done
en_AU.UTF-8... done
en_BW.UTF-8... done
en_CA.UTF-8... done
en_DK.UTF-8...^C
I don't want any of above locales (only en_US), but now I can't get rid of them -- I followed the steps in
https://serverfault.com/questions/394610/remove-a-locale-in-ubuntu
But when it comes to the last step, I'm still getting:
% locale-gen
Generating locales (this might take a while)...
en_AG.UTF-8... done
en_AU.UTF-8... done
en_BW.UTF-8... done
en_CA.UTF-8... done
en_DK.UTF-8...^C
How to remove all above locales and keep only en_US?
Conclusion & Supplement
Thanks to Gunnar's answer, it is indeed caused by entries in /etc/locale.gen, for those extra locales. Just FTR, this is what locale-gen en has changed in /etc/locale.gen:
$ sed '/^#/d; /en/p;' /etc/locale.gen
en_AG UTF-8
en_AG UTF-8
en_AU.UTF-8 UTF-8
en_AU.UTF-8 UTF-8
en_BW.UTF-8 UTF-8
en_BW.UTF-8 UTF-8
en_CA.UTF-8 UTF-8
en_CA.UTF-8 UTF-8
en_DK.UTF-8 UTF-8
en_DK.UTF-8 UTF-8
en_GB.UTF-8 UTF-8
en_GB.UTF-8 UTF-8
en_HK.UTF-8 UTF-8
en_HK.UTF-8 UTF-8
en_IE.UTF-8 UTF-8
en_IE.UTF-8 UTF-8
en_IL UTF-8
en_IL UTF-8
en_IN UTF-8
en_IN UTF-8
en_NG UTF-8
en_NG UTF-8
en_NZ.UTF-8 UTF-8
en_NZ.UTF-8 UTF-8
en_PH.UTF-8 UTF-8
en_PH.UTF-8 UTF-8
en_SC.UTF-8 UTF-8
en_SC.UTF-8 UTF-8
en_SG.UTF-8 UTF-8
en_SG.UTF-8 UTF-8
en_US.UTF-8 UTF-8
en_US.UTF-8 UTF-8
en_ZA.UTF-8 UTF-8
en_ZA.UTF-8 UTF-8
en_ZM UTF-8
en_ZM UTF-8
en_ZW.UTF-8 UTF-8
en_ZW.UTF-8 UTF-8
As a comparison, here is what the default looks like (i.e., without any of the above extra locales):
$ sed '/^#/d;' /etc/locale.gen; echo ---
---
