This has been around since forever. I fix this on every server I install. Note the uppercase UTF instead of lowecase as the locale output reports.
sudo locale-gen sv_SE.UTF-8 Generating locales... sv_SE.UTF-8... done Generation complete. Steps to reproduce: 1. install ubuntu server, any recent version 2. select english for everything except keyboard layout 3. install a package on the commandline and watch perl complain like this: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = "", LC_TIME = "sv_SE.utf-8", LC_CTYPE = "en_US.utf-8", LC_MONETARY = "sv_SE.utf-8", LC_COLLATE = "en_US.utf-8", LC_ADDRESS = "sv_SE.utf-8", LC_TELEPHONE = "sv_SE.utf-8", LC_MESSAGES = "en_US.utf-8", LC_NAME = "sv_SE.utf-8", LC_MEASUREMENT = "sv_SE.utf-8", LC_IDENTIFICATION = "en_US.utf-8", LC_NUMERIC = "sv_SE.utf-8", LC_PAPER = "sv_SE.utf-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). My guess is that the installer forgets to create the locale. Feb 9 16:51:18 localechooser: Generating locales... Feb 9 16:51:18 localechooser: en_US.UTF-8... Feb 9 16:51:20 localechooser: done Feb 9 16:51:20 localechooser: Generation complete. Feb 9 16:51:20 localechooser: Generating locales... Feb 9 16:51:20 localechooser: en_US.UTF-8... Feb 9 16:51:20 localechooser: up-to-date Feb 9 16:51:20 localechooser: Generation complete. Feb 9 16:51:20 preseed: perl: warning: Setting locale failed. Feb 9 16:51:20 preseed: perl: warning: Please check that your locale settings: Feb 9 16:51:20 preseed: LANGUAGE = (unset), Feb 9 16:51:20 preseed: LC_ALL = (unset), Feb 9 16:51:20 preseed: LANG = "C.UTF-8" Feb 9 16:51:20 preseed: are supported and installed on your system. Feb 9 16:51:20 preseed: perl: warning: Falling back to the standard locale ("C"). Feb 9 16:51:20 preseed: locale: Cannot set LC_CTYPE to default locale: No such file or directory Feb 9 16:51:20 preseed: locale: Cannot set LC_MESSAGES to default locale: No such file or directory Feb 9 16:51:20 preseed: locale: Cannot set LC_ALL to default locale: No such file or directory <snip> Feb 9 17:00:03 finish-install: info: Running /usr/lib/finish-install.d/05localechooser -- "setting locale failed" if using other keyboard layout then language https://bugs.launchpad.net/bugs/229699 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs