<s>
Gentoo	B-Application
Linux	I-Application
(	O
pronounced	O
)	O
is	O
a	O
Linux	B-Application
distribution	I-Application
built	O
using	O
the	O
Portage	B-Application
package	B-Application
management	I-Application
system	I-Application
.	O
</s>
<s>
Unlike	O
a	O
binary	O
software	B-Application
distribution	I-Application
,	O
the	O
source	O
code	O
is	O
compiled	O
locally	O
according	O
to	O
the	O
user	O
's	O
preferences	O
and	O
is	O
often	O
optimized	O
for	O
the	O
specific	O
type	O
of	O
computer	O
.	O
</s>
<s>
Gentoo	B-Application
Linux	I-Application
was	O
named	O
after	O
the	O
gentoo	B-Application
penguin	O
,	O
the	O
fastest	O
swimming	O
species	O
of	O
penguin	O
.	O
</s>
<s>
The	O
name	O
was	O
chosen	O
to	O
reflect	O
the	O
potential	O
speed	O
improvements	O
of	O
machine-specific	O
optimization	O
,	O
which	O
is	O
a	O
major	O
feature	O
of	O
Gentoo	B-Application
.	O
</s>
<s>
Gentoo	B-Application
package	B-Application
management	I-Application
is	O
designed	O
to	O
be	O
modular	B-Architecture
,	O
portable	O
,	O
easy	O
to	O
maintain	O
,	O
and	O
flexible	O
.	O
</s>
<s>
Gentoo	B-Application
describes	O
itself	O
as	O
a	O
meta-distribution	B-Application
because	O
of	O
its	O
adaptability	O
,	O
in	O
that	O
the	O
majority	O
of	O
users	O
have	O
configurations	O
and	O
sets	O
of	O
installed	O
programs	O
which	O
are	O
unique	O
to	O
the	O
system	O
and	O
the	O
applications	O
they	O
use	O
.	O
</s>
<s>
Gentoo	B-Application
Linux	I-Application
was	O
initially	O
created	O
by	O
Daniel	O
Robbins	O
as	O
the	O
Enoch	B-Application
Linux	I-Application
distribution	O
.	O
</s>
<s>
Daniel	O
Robbins	O
and	O
the	O
other	O
contributors	O
experimented	O
with	O
a	O
fork	O
of	O
GCC	B-Application
known	O
as	O
EGCS	O
,	O
developed	O
by	O
Cygnus	O
Solutions	O
.	O
</s>
<s>
At	O
this	O
point	O
,	O
"	O
Enoch	O
"	O
was	O
renamed	O
"	O
Gentoo	B-Application
"	O
Linux	B-Operating_System
(	O
the	O
gentoo	B-Application
species	O
is	O
the	O
fastest-swimming	O
penguin	O
)	O
.	O
</s>
<s>
The	O
modifications	O
to	O
EGCS	O
eventually	O
became	O
part	O
of	O
the	O
official	O
GCC	B-Application
(	O
version	O
2.95	O
)	O
,	O
and	O
other	O
Linux	B-Application
distributions	I-Application
experienced	O
similar	O
speed	O
increases	O
.	O
</s>
<s>
After	O
problems	O
with	O
a	O
bug	O
on	O
his	O
own	O
system	O
,	O
Robbins	O
halted	O
Gentoo	B-Application
development	O
and	O
switched	O
to	O
FreeBSD	B-Operating_System
for	O
several	O
months	O
,	O
later	O
saying	O
,	O
"	O
I	O
decided	O
to	O
add	O
several	O
FreeBSD	B-Operating_System
features	O
to	O
make	O
our	O
autobuild	O
system	O
(	O
now	O
called	O
Portage	B-Application
)	O
a	O
true	O
next-generation	O
ports	O
system.	O
"	O
</s>
<s>
Gentoo	B-Application
Linux	I-Application
1.0	O
was	O
released	O
on	O
March	O
31	O
,	O
2002	O
.	O
</s>
<s>
In	O
2004	O
,	O
Robbins	O
set	O
up	O
the	O
non-profit	O
Gentoo	B-Application
Foundation	I-Application
,	O
transferred	O
all	O
copyrights	O
and	O
trademarks	O
to	O
it	O
,	O
and	O
stepped	O
down	O
as	O
chief	O
architect	O
of	O
the	O
project	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
seven-member	O
Gentoo	B-Application
Council	O
that	O
oversees	O
the	O
technical	O
issues	O
and	O
policies	O
of	O
Gentoo	B-Application
.	O
</s>
<s>
The	O
Gentoo	B-Application
Council	O
members	O
are	O
elected	O
annually	O
,	O
for	O
a	O
period	O
of	O
one	O
year	O
,	O
by	O
the	O
active	O
Gentoo	B-Application
developers	O
.	O
</s>
<s>
The	O
Gentoo	B-Application
Foundation	I-Application
is	O
a	O
domestic	O
non-profit	O
corporation	O
,	O
registered	O
in	O
the	O
State	O
of	O
New	O
Mexico	O
.	O
</s>
<s>
In	O
late	O
2007	O
,	O
the	O
Foundation	O
's	O
charter	O
was	O
revoked	O
,	O
but	O
by	O
May	O
2008	O
the	O
State	O
of	O
New	O
Mexico	O
declared	O
that	O
the	O
Gentoo	B-Application
Foundation	I-Application
,	O
Inc	O
.	O
had	O
returned	O
to	O
good	O
standing	O
and	O
was	O
free	O
to	O
do	O
business	O
.	O
</s>
<s>
Gentoo	B-Application
appeals	O
to	O
Linux	B-Operating_System
users	O
who	O
want	O
full	O
control	O
of	O
the	O
software	O
that	O
is	O
installed	O
and	O
running	O
on	O
their	O
computer	O
.	O
</s>
<s>
People	O
who	O
are	O
prepared	O
to	O
invest	O
the	O
time	O
required	O
to	O
configure	O
and	O
tune	O
a	O
Gentoo	B-Application
system	O
can	O
build	O
very	O
efficient	O
desktops	B-Device
and	O
servers	B-Application
.	O
</s>
<s>
Gentoo	B-Application
encourages	O
users	O
to	O
build	O
a	O
Linux	B-Operating_System
kernel	I-Operating_System
tailored	O
to	O
their	O
particular	O
hardware	O
.	O
</s>
<s>
It	O
allows	O
very	O
fine	O
control	O
of	O
which	O
services	O
are	O
installed	O
and	O
running	O
,	O
including	O
the	O
option	O
to	O
choose	O
between	O
systemd	B-Application
or	O
OpenRC	B-Device
as	O
the	O
default	O
init	B-Operating_System
system	I-Operating_System
.	O
</s>
<s>
Memory	O
usage	O
can	O
also	O
be	O
reduced	O
compared	O
to	O
other	O
distributions	O
by	O
omitting	O
unnecessary	O
kernel	B-Operating_System
features	O
and	O
services	O
.	O
</s>
<s>
Gentoo	B-Application
's	O
package	O
repositories	O
provide	O
a	O
large	O
collection	O
of	O
software	O
.	O
</s>
<s>
Each	O
package	O
contains	O
details	O
of	O
any	O
dependencies	B-Application
,	O
so	O
only	O
the	O
minimum	O
set	O
of	O
packages	O
need	O
to	O
be	O
installed	O
.	O
</s>
<s>
Optional	O
features	O
of	O
individual	O
packages	O
,	O
such	O
as	O
whether	O
they	O
require	O
LDAP	B-Protocol
or	O
Qt	B-Language
support	O
,	O
can	O
be	O
selected	O
by	O
the	O
user	O
and	O
any	O
resulting	O
package	O
requirements	O
are	O
automatically	O
included	O
in	O
the	O
set	O
of	O
dependencies	B-Application
.	O
</s>
<s>
As	O
Gentoo	B-Application
does	O
not	O
impose	O
a	O
standard	O
look	B-Application
and	I-Application
feel	I-Application
,	O
installed	O
packages	O
usually	O
appear	O
as	O
their	O
authors	O
intended	O
.	O
</s>
<s>
Portage	B-Application
is	O
Gentoo	B-Application
's	O
software	B-Application
distribution	I-Application
and	O
package	B-Application
management	I-Application
system	I-Application
.	O
</s>
<s>
The	O
original	O
design	O
was	O
based	O
on	O
the	O
ports	B-Application
system	I-Application
used	O
by	O
the	O
Berkeley	B-Operating_System
Software	I-Operating_System
Distribution	I-Operating_System
(	O
BSD	B-Operating_System
)	O
operating	O
systems	O
.	O
</s>
<s>
The	O
Gentoo	B-Application
repository	O
contains	O
over	O
19,000	O
packages	O
ready	O
for	O
installation	O
in	O
a	O
Gentoo	B-Application
system	O
.	O
</s>
<s>
A	O
single	O
invocation	O
of	O
portage	B-Application
's	O
command	O
can	O
update	O
the	O
local	O
copy	O
of	O
the	O
Gentoo	B-Application
repository	O
,	O
search	O
for	O
a	O
package	O
,	O
or	O
download	O
,	O
compile	O
,	O
and	O
install	O
one	O
or	O
more	O
packages	O
and	O
their	O
dependencies	B-Application
.	O
</s>
<s>
Pre-compiled	O
binaries	O
are	O
provided	O
for	O
some	O
applications	O
with	O
long	O
build	O
times	O
,	O
such	O
as	O
LibreOffice	B-Application
and	O
Mozilla	B-Application
Firefox	I-Application
,	O
but	O
users	O
lose	O
the	O
ability	O
to	O
customize	O
optional	O
features	O
.	O
</s>
<s>
There	O
are	O
configuration	O
options	O
to	O
reduce	O
compilation	O
times	O
,	O
such	O
as	O
by	O
enabling	O
parallel	O
compilation	O
or	O
using	O
pipes	B-Operating_System
instead	O
of	O
temporary	O
files	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
user	O
may	O
be	O
able	O
to	O
mount	B-Application
a	I-Application
large	I-Application
filesystem	I-Application
in	I-Application
memory	I-Application
to	O
further	O
speed	O
up	O
the	O
process	O
of	O
building	O
packages	O
.	O
</s>
<s>
As	O
Gentoo	B-Application
is	O
a	O
source-based	O
distribution	O
with	O
a	O
repository	O
describing	O
how	O
to	O
build	O
the	O
packages	O
,	O
adding	O
instructions	O
to	O
build	O
on	O
different	O
machine	B-General_Concept
architectures	I-General_Concept
is	O
particularly	O
easy	O
.	O
</s>
<s>
Originally	O
built	O
on	O
the	O
IA-32	B-Device
architecture	O
,	O
Gentoo	B-Application
has	O
since	O
been	O
ported	O
to	O
many	O
others	O
.	O
</s>
<s>
It	O
is	O
officially	O
supported	O
and	O
considered	O
stable	O
on	O
IA-32	B-Device
,	O
x86-64	B-Device
,	O
IA-64	B-General_Concept
,	O
PA-RISC	B-Device
,	O
32-bit	O
and	O
64-bit	O
PowerPC	B-Architecture
,	O
64-bit	O
SPARC	B-Architecture
,	O
DEC	B-Device
Alpha	I-Device
,	O
and	O
both	O
32	O
-	O
and	O
64-bit	O
ARM	B-Architecture
architectures	I-Architecture
.	O
</s>
<s>
It	O
is	O
also	O
officially	O
supported	O
but	O
considered	O
in-development	O
state	O
on	O
MIPS	B-Device
,	O
PS3	B-General_Concept
Cell	I-General_Concept
Processor	I-General_Concept
,	O
System	B-Device
Z/s390	I-Device
,	O
.	O
</s>
<s>
Official	O
support	O
for	O
32-bit	O
SPARC	B-Architecture
hardware	O
and	O
SuperH	O
have	O
been	O
dropped	O
.	O
</s>
<s>
Portability	O
towards	O
other	O
operating	O
systems	O
,	O
such	O
as	O
those	O
derived	O
from	O
BSD	B-Operating_System
,	O
including	O
macOS	B-Application
,	O
is	O
under	O
active	O
development	O
by	O
the	O
Gentoo/Alt	O
project	O
.	O
</s>
<s>
The	O
Gentoo/FreeBSD	O
project	O
already	O
has	O
a	O
working	O
guide	O
based	O
on	O
FreeSBIE	B-Application
,	O
while	O
Gentoo/NetBSD	O
,	O
Gentoo/OpenBSD	O
and	O
Gentoo/DragonFly	O
are	O
being	O
developed	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
project	O
to	O
get	O
Portage	B-Application
working	O
on	O
OpenSolaris	B-Operating_System
.	O
</s>
<s>
There	O
was	O
an	O
unofficial	O
project	O
to	O
create	O
a	O
Gentoo	B-Application
port	O
to	O
GNU	B-Application
Hurd	I-Application
,	O
but	O
it	O
has	O
been	O
inactive	O
since	O
2006	O
.	O
</s>
<s>
It	O
is	O
also	O
possible	O
to	O
install	O
a	O
Gentoo	B-Application
Prefix	O
(	O
provided	O
by	O
a	O
project	O
that	O
maintains	O
alternative	O
installation	O
methods	O
for	O
Gentoo	B-Application
)	O
in	O
a	O
Cygwin	B-Language
environment	O
on	O
Windows	O
,	O
but	O
this	O
configuration	O
is	O
experimental	O
.	O
</s>
<s>
Gentoo	B-Application
may	O
be	O
installed	O
in	O
several	O
ways	O
.	O
</s>
<s>
The	O
most	O
common	O
way	O
is	O
to	O
use	O
the	O
Gentoo	B-Application
minimal	O
CD	O
with	O
a	O
stage3	O
tarball	B-Application
(	O
explained	O
below	O
)	O
.	O
</s>
<s>
As	O
with	O
many	O
Linux	B-Application
distributions	I-Application
,	O
Gentoo	B-Application
may	O
be	O
installed	O
from	O
almost	O
any	O
Linux	B-Operating_System
environment	O
,	O
such	O
as	O
another	O
Linux	B-Application
distribution	I-Application
's	O
Live	O
CD	O
,	O
Live	O
USB	O
,	O
or	O
Network	O
Booting	O
using	O
the	O
"	O
Gentoo	B-Application
Alternative	O
Install	O
Guide	O
"	O
.	O
</s>
<s>
It	O
includes	O
a	O
large	O
selection	O
of	O
software	O
,	O
including	O
the	O
KDE	B-Application
Plasma	O
desktop	O
environment	O
,	O
image	O
editors	O
,	O
office	O
software	O
,	O
system	O
administration	O
,	O
and	O
installation	O
tools	O
.	O
</s>
<s>
Previously	O
,	O
Gentoo	B-Application
supported	O
installation	O
from	O
stage1	O
and	O
stage2	O
tarballs	B-Application
;	O
however	O
,	O
the	O
Gentoo	B-Application
Foundation	I-Application
no	O
longer	O
recommends	O
them	O
.	O
</s>
<s>
Stage1	O
and	O
stage2	O
are	O
meant	O
only	O
for	O
Gentoo	B-Application
developers	O
.	O
</s>
<s>
Following	O
the	O
initial	O
install	O
steps	O
,	O
the	O
Gentoo	B-Application
Linux	I-Application
install	O
process	O
in	O
the	O
Gentoo	B-Application
Handbook	O
describes	O
compiling	O
a	O
new	O
Linux	B-Operating_System
kernel	I-Operating_System
.	O
</s>
<s>
This	O
process	O
is	O
generally	O
not	O
required	O
by	O
other	O
Linux	B-Application
distributions	I-Application
.	O
</s>
<s>
Although	O
this	O
is	O
widely	O
regarded	O
as	O
a	O
complex	O
task	O
,	O
Gentoo	B-Application
provides	O
documentation	O
and	O
tools	O
such	O
as	O
Genkernel	O
to	O
simplify	O
the	O
process	O
.	O
</s>
<s>
In	O
addition	O
,	O
users	O
may	O
also	O
use	O
an	O
existing	O
kernel	B-Operating_System
known	O
to	O
work	O
on	O
their	O
system	O
by	O
simply	O
copying	O
it	O
to	O
the	O
boot	O
directory	O
,	O
or	O
installing	O
one	O
of	O
the	O
provided	O
pre-compiled	O
kernel	B-Operating_System
packages	O
,	O
and	O
updating	O
their	O
bootloader	O
.	O
</s>
<s>
Support	O
for	O
installation	O
is	O
provided	O
on	O
the	O
Gentoo	B-Application
forum	O
,	O
Reddit	B-Application
,	O
and	O
IRC	B-Protocol
.	O
</s>
<s>
A	O
Live	O
USB	O
of	O
Gentoo	B-Application
Linux	I-Application
can	O
be	O
created	O
manually	O
,	O
by	O
using	O
various	B-Application
tools	I-Application
,	O
or	O
with	O
dd	O
as	O
described	O
in	O
the	O
.	O
</s>
<s>
Stage1	O
begins	O
with	O
only	O
what	O
is	O
necessary	O
to	O
build	O
a	O
toolchain	B-General_Concept
(	O
the	O
various	O
compilers	O
,	O
linkers	O
,	O
and	O
language	O
libraries	O
necessary	O
to	O
compile	O
other	O
software	O
)	O
for	O
the	O
target	O
system	O
;	O
compiling	O
this	O
target	O
toolchain	B-General_Concept
from	O
another	O
,	O
pre-existing	O
host	O
system	O
is	O
known	O
as	O
bootstrapping	B-Application
the	O
target	O
system	O
.	O
</s>
<s>
Stage2	O
begins	O
with	O
a	O
self-hosting	O
(	O
bootstrapped	O
)	O
toolchain	B-General_Concept
for	O
the	O
target	O
system	O
,	O
which	O
is	O
then	O
used	O
to	O
compile	O
all	O
other	O
core	O
userland	B-Operating_System
software	O
for	O
the	O
target	O
.	O
</s>
<s>
Stage3	O
begins	O
with	O
a	O
minimal	O
set	O
of	O
compiled	O
user	O
software	O
,	O
with	O
which	O
the	O
kernel	B-Operating_System
and	O
any	O
other	O
additional	O
software	O
are	O
then	O
configured	O
and	O
compiled	O
.	O
</s>
<s>
Since	O
October	O
2005	O
,	O
only	O
the	O
stage3	O
installations	O
have	O
been	O
officially	O
supported	O
,	O
due	O
to	O
the	O
inherent	O
complexities	O
of	O
bootstrapping	B-Application
from	O
earlier	O
stages	O
(	O
which	O
requires	O
resolving	O
and	O
then	O
breaking	O
numerous	O
circular	O
dependencies	B-Application
)	O
.	O
</s>
<s>
Tarballs	B-Application
for	O
stage1	O
and	O
stage2	O
were	O
distributed	O
for	O
some	O
time	O
after	O
this	O
,	O
although	O
the	O
instructions	O
for	O
installing	O
from	O
these	O
stages	O
had	O
been	O
removed	O
from	O
the	O
handbook	O
and	O
moved	O
into	O
the	O
Gentoo	B-Application
FAQ	O
.	O
</s>
<s>
,	O
only	O
the	O
supported	O
stage3	O
tarballs	B-Application
are	O
publicly	O
available	O
;	O
stage1	O
and	O
stage2	O
tarballs	B-Application
are	O
only	O
"	O
officially	O
"	O
generated	O
and	O
used	O
internally	O
by	O
Gentoo	B-Application
development	O
teams	O
.	O
</s>
<s>
However	O
,	O
if	O
so	O
desired	O
,	O
a	O
user	O
may	O
still	O
rebuild	O
the	O
toolchain	B-General_Concept
or	O
reinstall	O
the	O
base	O
system	B-Application
software	I-Application
during	O
or	O
after	O
a	O
normal	O
stage3	O
installation	O
,	O
effectively	O
simulating	O
the	O
old	O
bootstrap	O
process	O
.	O
</s>
<s>
From	O
2003	O
until	O
2008	O
,	O
the	O
Gentoo	B-Application
Reference	I-Application
Platform	I-Application
(	O
GRP	O
)	O
was	O
a	O
snapshot	O
of	O
prebuilt	O
packages	O
that	O
users	O
could	O
quickly	O
install	O
during	O
the	O
Gentoo	B-Application
installation	O
process	O
,	O
to	O
give	O
faster	O
access	O
to	O
a	O
fully	O
functional	O
Gentoo	B-Application
installation	O
.	O
</s>
<s>
These	O
packages	O
included	O
KDE	B-Application
,	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
,	O
OpenOffice	B-Application
,	O
GNOME	B-Application
,	O
and	O
Mozilla	B-Operating_System
.	O
</s>
<s>
Once	O
the	O
installation	O
was	O
complete	O
,	O
the	O
packages	O
installed	O
as	O
part	O
of	O
the	O
GRP	O
were	O
intended	O
to	O
be	O
replaced	O
by	O
the	O
user	O
with	O
the	O
same	O
or	O
newer	O
versions	O
built	O
through	O
Portage	B-Application
that	O
would	O
be	O
built	O
using	O
the	O
user	O
's	O
system	O
configuration	O
rather	O
than	O
the	O
generic	O
builds	O
provided	O
by	O
the	O
GRP	O
.	O
</s>
<s>
Gentoo	B-Application
follows	O
a	O
rolling	O
release	O
model	O
.	O
</s>
<s>
Like	O
other	O
Linux	B-Application
distributions	I-Application
,	O
Gentoo	B-Application
systems	O
have	O
an	O
/etc/gentoo	O
-release	O
file	O
,	O
but	O
this	O
contains	O
the	O
version	O
of	O
the	O
installed	O
sys-apps/baselayout	O
package	O
.	O
</s>
<s>
In	O
2004	O
,	O
Gentoo	B-Application
began	O
to	O
version	O
its	O
Live	O
media	O
by	O
year	O
rather	O
than	O
numerically	O
.	O
</s>
<s>
In	O
2009	O
,	O
a	O
special	O
Live	O
DVD	O
was	O
created	O
to	O
celebrate	O
the	O
Gentoo	B-Application
10-year	O
anniversary	O
.	O
</s>
<s>
In	O
2009	O
,	O
a	O
special	O
Live	O
DVD	O
was	O
released	O
to	O
celebrate	O
Gentoo	B-Application
's	O
tenth	O
anniversary	O
.	O
</s>
<s>
Name	O
Date/info	O
Unreal	B-Application
Tournament	I-Application
2003	I-Application
LiveCD	O
-	O
Bootable	O
NVIDIA	O
GPU-accelerated	O
Unreal	B-Application
Tournament	I-Application
2003	I-Application
LiveCD	O
,	O
demoed	O
at	O
LinuxWorld	O
Conference	O
and	O
Expo	O
2003	O
.	O
</s>
<s>
Although	O
Gentoo	B-Application
does	O
not	O
have	O
a	O
concept	O
of	O
versioning	O
the	O
entire	O
system	O
,	O
it	O
does	O
make	O
use	O
of	O
"	O
profiles	O
"	O
,	O
which	O
define	O
build	O
configuration	O
for	O
all	O
packages	O
in	O
the	O
system	O
.	O
</s>
<s>
These	O
profiles	O
are	O
versioned	O
based	O
on	O
the	O
year	O
they	O
were	O
released	O
,	O
and	O
include	O
several	O
variants	O
for	O
each	O
release	O
targeted	O
towards	O
different	O
types	O
of	O
systems	O
(	O
such	O
as	O
servers	B-Application
and	O
desktops	B-Device
)	O
.	O
</s>
<s>
Hardened	O
Gentoo	B-Application
is	O
a	O
project	O
designed	O
to	O
develop	O
and	O
designate	O
a	O
set	O
of	O
add-ons	O
that	O
are	O
useful	O
when	O
a	O
more	O
security	O
focused	O
installation	O
is	O
required	O
.	O
</s>
<s>
Previously	O
,	O
the	O
project	O
included	O
patches	O
to	O
produce	O
a	O
hardened	O
kernel	B-Operating_System
,	O
but	O
these	O
were	O
discontinued	O
.	O
</s>
<s>
Other	O
parts	O
of	O
the	O
hardened	O
set	O
,	O
such	O
as	O
SELinux	B-Application
,	O
and	O
userspace	B-Operating_System
hardening	O
remain	O
.	O
</s>
<s>
In	O
June	O
2018	O
the	O
Gentoo	B-Application
GitHub	B-Application
code	O
repository	O
mirror	O
used	O
mainly	O
by	O
developers	O
was	O
hacked	O
after	O
an	O
attacker	O
gained	O
access	O
to	O
an	O
organization	O
administrator	O
's	O
account	O
via	O
deducing	O
the	O
password	O
.	O
</s>
<s>
Gentoo	B-Application
promptly	O
responded	O
by	O
containing	O
the	O
attack	O
and	O
improving	O
security	O
practices	O
.	O
</s>
<s>
No	O
Gentoo	B-Application
cryptography	B-Application
keys	I-Application
or	O
signed	O
packages	O
were	O
compromised	O
,	O
and	O
the	O
repository	O
was	O
restored	O
after	O
five	O
days	O
.	O
</s>
<s>
The	O
gentoo	B-Application
penguin	O
is	O
thought	O
to	O
be	O
the	O
fastest	O
underwater-swimming	O
penguin	O
.	O
</s>
<s>
The	O
name	O
"	O
Gentoo	B-Application
Linux	I-Application
"	O
acknowledges	O
both	O
the	O
Linux	B-Application
mascot	I-Application
a	O
penguin	O
called	O
Tux	B-Application
and	O
the	O
project	O
's	O
aim	O
to	O
produce	O
a	O
high-performance	O
operating	O
system	O
.	O
</s>
<s>
The	O
official	O
Gentoo	B-Application
logo	O
is	O
a	O
stylized	O
'	O
g	O
 '	O
resembling	O
a	O
silver	O
magatama	O
.	O
</s>
<s>
Unofficial	O
mascots	O
include	O
Larry	B-Application
The	I-Application
Cow	I-Application
and	O
Znurt	O
the	O
Flying	O
Saucer	O
.	O
</s>
<s>
There	O
are	O
a	O
number	O
of	O
independently	O
developed	O
variants	O
of	O
Gentoo	B-Application
Linux	I-Application
,	O
including	O
ChromiumOS	B-Application
and	O
Container	B-Application
Linux	I-Application
.	O
</s>
