tux@Pinguin:~$ LC_ALL=c sudo apt-get install gdb-arm-none-eabi 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  gdb-arm-none-eabi
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/2480 kB of archives.
After this operation, 6544 kB of additional disk space will be used.
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "de_DE",
        LC_ALL = "c",
        LANG = "de_DE.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
(Reading database ... 277136 files and directories currently installed.)
Preparing to unpack .../gdb-arm-none-eabi_7.6.50.20131218-0ubuntu1+1_amd64.deb ...
Unpacking gdb-arm-none-eabi (7.6.50.20131218-0ubuntu1+1) ...
dpkg: error processing archive /var/cache/apt/archives/gdb-arm-none-eabi_7.6.50.20131218-0ubuntu1+1_amd64.deb (--unpack):
 trying to overwrite '/usr/share/man/man1/gdb.1.gz', which is also in package gdb 7.7.1-0ubuntu5~14.04.2
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/gdb-arm-none-eabi_7.6.50.20131218-0ubuntu1+1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)