Пакетите са си дело на Redhat и не са вързани със средата. Писани са за GTK и питон. Ако при инсталацията си избрал, че не искаш локализация, няма да ти инсталира пордъжка за езици (по default)
Ако искаш да си сложиш такава или yum install system-config-language, или си избираш група от yum grouplist 
======================== N/S Matched: system-config 
system-config-firewall-base.noarch : system-config-firewall base components and command line tool
system-config-keyboard-base.x86_64 : system-config-keyboard base components
system-config-audit.x86_64 : Utility for editing audit configuration
system-config-bind.noarch : BIND DNS Configuration Tool
system-config-boot.x86_64 : A graphical interface for configuring the boot loader
system-config-date.noarch : A graphical interface for modifying system date and time
system-config-date-docs.noarch : Documentation for setting the system date and time
system-config-firewall.noarch : A graphical interface for basic firewall setup
system-config-firewall-tui.noarch : A text interface for basic firewall setup
system-config-httpd.noarch : Apache configuration tool
system-config-kdump.noarch : A graphical interface for configuring kernel crash dumping
system-config-keyboard.x86_64 : A graphical interface for modifying the keyboard
system-config-kickstart.noarch : A graphical interface for making kickstart files
system-config-language.noarch : A graphical interface for modifying the system language
system-config-lvm.noarch : A utility for graphically configuring Logical Volumes
system-config-netboot.noarch : Network booting/install configuration utility (GUI)
system-config-netboot-cmd.noarch : Network booting/install configuration utility
system-config-network.noarch : The GUI of the Network Administration Tool
system-config-network-tui.noarch : The Network Administration Tool
system-config-nfs.noarch : NFS server configuration tool
system-config-nfs-docs.noarch : Documentation for configuring an NFS server
system-config-printer.x86_64 : A printer administration tool
system-config-printer-kde.x86_64 : A printer administration tool for KDE
system-config-printer-libs.x86_64 : Libraries and shared code for printer administration tool
system-config-printer-udev.x86_64 : Rules for udev for automatic configuration of USB printers
system-config-rootpassword.noarch : A graphical interface for modifying the rootpassword
system-config-samba.noarch : Samba server configuration tool
system-config-samba-docs.noarch : Documentation for configuring a Samba server
system-config-services.noarch : Utility to start and stop system services
system-config-services-docs.noarch : Documentation for configuring system services
system-config-users.noarch : A graphical interface for administering users and groups
system-config-users-docs.noarch : Documentation for administering users and groups
Available Language Groups:
   Afrikaans Support [af]
   Akan Support [ak]
   Albanian Support [sq]
   Amazigh Support [ber]
   Asturian Support [ast]
   Azerbaijani Support [az]
   Basque Support [eu]
   Belarusian Support [be]
   Bosnian Support [bs]
   Brazilian Portuguese Support [pt_BR]
   Breton Support 
   Bulgarian Support [bg]
   Catalan Support [ca]
   Chichewa Support [ny]
   Chuvash Support [cv]
   Coptic Support [cop]
   Croatian Support 
   Czech Support [cs]
   Danish Support [da]
   Dutch Support [nl]
   English (UK) Support [en_GB]
   Esperanto Support [eo]
   Estonian Support [et]
   Faroese Support [fo]
   Fijian Support [fj]
   Filipino Support [fil]
   Finnish Support [fi]
   French Support [fr]
   Frisian Support [fy]
   Friulian Support [fur]
   Gaelic Support [gd]
   Galician Support [gl]
   German Support [de]
   Greek Support [el]
   Haitian Creole Support [ht]
   Hiligaynon Support [hil]
   Hungarian Support [hu]
   Icelandic Support [is]
   Indonesian Support [id]
   Interlingua Support [ia]
   Irish Support [ga]
   Italian Support [it]
   Kashubian Support [csb]
   Kazakh Support [kk]
   Kinyarwanda Support [rw]
   Kurdish Support [ku]
   Kyrgyz Support [ky]
   Latin Support [la]
   Latvian Support [lv]
   Lingala Support [ln]
   Lithuanian Support [lt]
   Low German Support [nds]
   Low Saxon Support [nds]
   Lower Sorbian Support [dsb]
   Lule Sami Support [smj]
   Luxembourgish Support [lb]
   Macedonian Support [mk]
   Malagasy Support [mg]
   Malay Support [ms]
   Maltese Support [mt]
   Manx Support [gv]
   Maori Support [mi]
   Mongolian Support [mn]
   Mossi Support [mos]
   Nepali Support [ne]
   Northern Sami Support [se]
   Northern Sotho Support [nso]
   Norwegian Support [nb]
   Occitan Support [oc]
   Oromo Support [om]
   Persian Support [fa]
   Polish Support [pl]
   Portuguese Support [pt]
   Quechua Support [qu]
   Romanian Support [ro]
   Samoan Support [sm]
   Sardinian Support [sc]
   Serbian Support [sr]
   Shuswap Support [shs]
   Slovak Support [sk]
   Slovenian Support [sl]
   Southern Ndebele Support [nr]
   Southern Sotho Support [st]
   Spanish Support [es]
   Swahili Support [sw]
   Swati Support [ss]
   Swedish Support [sv]
   Tagalog Support [tl]
   Tetum Support [tet]
   Tibetan Support [bo]
   Tigrinya Support [ti]
   Tonga Support [to]
   Tsonga Support [ts]
   Tswana Support [tn]
   Turkish Support 
| Turkmen Support [tk] Ukrainian Support [uk]
 Upper Sorbian Support [hsb]
 Uzbek Support [uz]
 Vietnamese Support [vi]
 Walloon Support [wa]
 Welsh Support [cy]
 Xhosa Support [xh]
 Zulu Support [zu]
 
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