olej@astra:~$ setxkbmap -model pc104 -layout 'us,ru,ua'
olej@astra:~$ cat /etc/default/keyboard
# KEYBOARD CONFIGURATION FILE
# Consult the keyboard(5) manual page.
XKBMODEL="pc105"
XKBLAYOUT="us,ru"
XKBVARIANT=","
XKBOPTIONS="grp:alt_shift_toggle,grp_led:scroll"
BACKSPACE="guess"
olej@astra:/usr/share/X11/xkb/symbols$ pwd
/usr/share/X11/xkb/symbols
olej@astra:/usr/share/X11/xkb/symbols$ ls -X
af bn ctrl fi id kg ma nec_vndr ro sun_vndr uz
al br cz fo ie kh macintosh_vndr ng rs sy vn
altwin brai de fr il kpdl mao nl ru terminate xfree68_vndr
am bt digital_vndr fujitsu_vndr in kr md no rupeesign tg za
apl bw dk gb inet kz me nokia_vndr se th
ara by dz ge iq la mk np sgi_vndr tj
at ca ee gh ir latam ml olpc sharp_vndr tm
au capslock empty gn is latin mm parens shift tr
az cd epo gr it level3 mn pc si tw
ba ch es group jolla_vndr level5 mt ph sk typo
bd cm et hp_vndr jp lk mv pk sn tz
be cn eu hr ke lt my pl sony_vndr ua
bg compose eurosign hu keypad lv nbsp pt srvr_ctrl us
olej@astra:/usr/share/X11/xkb/symbols$ cat by | grep name
name[Group1]= "Belarusian";
name[Group1]= "Belarusian (legacy)";
name[Group1]= "Belarusian (Latin)";
olej@ACER:~$ localectl list-x11-keymap-layouts
af
al
am
ara
at
au
az
ba
bd
be
bg
br
brai
bt
bw
by
ca
cd
ch
cm
cn
cz
de
dk
dz
ee
epo
es
et
fi
fo
fr
gb
ge
gh
gn
gr
hr
hu
id
ie
il
in
iq
ir
is
it
jp
ke
kg
kh
kr
kz
la
latam
lk
lt
lv
ma
mao
md
me
mk
ml
mm
mn
mt
mv
my
nec_vndr/jp
ng
nl
no
np
ph
pk
pl
pt
ro
rs
ru
se
si
sk
sn
sy
tg
th
tj
tm
tr
tw
tz
ua
us
uz
vn
za
olej@astra:~$ setxkbmap -model pc104 -layout 'us,ru,ua'
olej@astra:~$ cat /etc/default/keyboard
# KEYBOARD CONFIGURATION FILE
# Consult the keyboard(5) manual page.
XKBMODEL="pc105"
XKBLAYOUT="us,ru"
XKBVARIANT=","
XKBOPTIONS="grp:alt_shift_toggle,grp_led:scroll"
BACKSPACE="guess"