<s>
MirOS	B-Application
BSD	I-Application
(	O
originally	O
called	O
MirBSD	B-Application
)	O
is	O
a	O
free	B-Application
and	I-Application
open	I-Application
source	I-Application
operating	B-General_Concept
system	I-General_Concept
which	O
started	O
as	O
a	O
fork	O
of	O
OpenBSD	B-Operating_System
3.1	O
in	O
August	O
2002	O
.	O
</s>
<s>
It	O
was	O
intended	O
to	O
maintain	O
the	O
security	O
of	O
OpenBSD	B-Operating_System
with	O
better	O
support	O
for	O
European	O
localisation	O
.	O
</s>
<s>
Since	O
then	O
it	O
has	O
also	O
incorporated	O
code	O
from	O
other	O
free	B-Operating_System
BSD	I-Operating_System
descendants	O
,	O
including	O
NetBSD	B-Device
,	O
MicroBSD	O
and	O
FreeBSD	B-Operating_System
.	O
</s>
<s>
Code	O
from	O
MirOS	B-Application
BSD	I-Application
was	O
also	O
incorporated	O
into	O
ekkoBSD	O
,	O
and	O
when	O
ekkoBSD	O
ceased	O
to	O
exist	O
,	O
artwork	O
,	O
code	O
and	O
developers	O
ended	O
up	O
working	O
on	O
MirOS	B-Application
BSD	I-Application
for	O
a	O
while	O
.	O
</s>
<s>
Unlike	O
the	O
three	O
major	O
BSD	B-Operating_System
distributions	O
,	O
MirOS	B-Application
BSD	I-Application
supports	O
only	O
the	O
x86	B-Operating_System
and	O
SPARC	B-Architecture
architectures	O
.	O
</s>
<s>
One	O
of	O
the	O
project	O
's	O
goals	O
was	O
to	O
be	O
able	O
to	O
port	O
the	O
MirOS	B-Application
userland	O
to	O
run	O
on	O
the	O
Linux	B-Application
kernel	O
,	O
hence	O
the	O
deprecation	O
of	O
the	O
MirBSD	B-Application
name	O
in	O
favour	O
of	O
MirOS	B-Application
.	O
</s>
<s>
MirOS	B-Application
BSD	I-Application
originated	O
as	O
OpenBSD-current-mirabilos	O
,	O
an	O
OpenBSD	B-Operating_System
patchkit	O
,	O
but	O
soon	O
grew	O
on	O
its	O
own	O
after	O
some	O
differences	O
in	O
opinion	O
between	O
the	O
OpenBSD	B-Operating_System
project	I-Operating_System
leader	O
Theo	O
de	O
Raadt	O
and	O
Thorsten	O
Glaser	O
.	O
</s>
<s>
Despite	O
the	O
forking	O
,	O
MirOS	B-Application
BSD	I-Application
was	O
synchronised	O
with	O
the	O
ongoing	O
development	O
of	O
OpenBSD	B-Operating_System
,	O
thus	O
inheriting	O
most	O
of	O
its	O
good	O
security	O
history	O
,	O
as	O
well	O
as	O
NetBSD	B-Device
and	O
other	O
BSD	B-Operating_System
flavours	O
.	O
</s>
<s>
One	O
goal	O
was	O
to	O
provide	O
a	O
faster	O
integration	O
cycle	O
for	O
new	O
features	O
and	O
software	O
than	O
OpenBSD	B-Operating_System
.	O
</s>
<s>
According	O
to	O
the	O
developers	O
,	O
"	O
controversial	O
decisions	O
are	O
often	O
made	O
differently	O
from	O
OpenBSD	B-Operating_System
;	O
for	O
instance	O
,	O
there	O
wo	O
n't	O
be	O
any	O
support	O
for	O
SMP	O
in	O
MirOS	B-Application
"	O
.	O
</s>
<s>
There	O
will	O
also	O
be	O
a	O
more	O
tolerant	O
software	O
inclusion	O
policy	O
,	O
and	O
"	O
the	O
end	O
result	O
is	O
,	O
hopefully	O
,	O
a	O
more	O
refined	O
BSD	B-Operating_System
experience	O
"	O
.	O
</s>
<s>
Another	O
goal	O
of	O
MirOS	B-Application
BSD	I-Application
was	O
to	O
create	O
a	O
more	O
"	O
modular	O
"	O
base	O
BSD	B-Operating_System
system	O
,	O
similar	O
to	O
Debian	O
.	O
</s>
<s>
While	O
MirOS	B-Application
Linux	B-Application
(	O
linux	B-Application
kernel	O
+	O
BSD	B-Operating_System
userland	O
)	O
was	O
discussed	O
by	O
the	O
developers	O
sometime	O
in	O
2004	O
,	O
it	O
has	O
not	O
materialised	O
.	O
</s>
<s>
Development	O
snapshots	O
are	O
live	O
and	O
installation	B-Device
CD	O
for	O
x86	B-Operating_System
and	O
SPARC	B-Architecture
architectures	O
on	O
one	O
media	O
,	O
via	O
the	O
DuaLive	O
technology	O
.	O
</s>
<s>
Application	O
packages	O
from	O
the	O
NetBSD-derived	O
pkgsrc	B-Application
repositories	O
were	O
configured	O
for	O
use	O
in	O
MirBSD	B-Application
starting	O
in	O
2011	O
.	O
</s>
<s>
The	O
most	O
important	O
differences	O
to	O
OpenBSD	B-Operating_System
were	O
:	O
</s>
<s>
Slim	O
base	O
system	O
(	O
without	O
NIS	O
,	O
Kerberos	O
,	O
BIND	B-Protocol
,	O
i18n	O
,	O
BSD	B-Operating_System
games	O
,	O
etc	O
.	O
</s>
<s>
In	O
fact	O
,	O
MirBSD	B-Application
only	O
supports	O
the	O
BMP	O
,	O
so	O
the	O
"	O
UTF-8	O
"	O
support	O
is	O
limited	O
to	O
the	O
part	O
common	O
between	O
UTF-8	O
and	O
CESU-8	O
.	O
</s>
<s>
Aside	O
from	O
cooperating	O
with	O
other	O
BSDs	B-Operating_System
,	O
submitting	O
patches	O
to	O
upstream	O
software	O
authors	O
,	O
and	O
synergy	O
effects	O
with	O
FreeWRT	O
,	O
there	O
was	O
an	O
active	O
cooperation	O
with	O
Grml	B-Language
both	O
in	O
inclusion	O
and	O
technical	O
areas	O
.	O
</s>
<s>
MirPorts	O
was	O
a	O
derivative	O
of	O
the	O
OpenBSD	B-Operating_System
ports	O
tree	O
and	O
was	O
developed	O
by	O
Benny	O
Siegert	O
.	O
</s>
<s>
MirPorts	O
does	O
not	O
use	O
the	O
package	O
tools	O
from	O
OpenBSD	B-Operating_System
written	O
in	O
Perl	B-Language
,	O
but	O
continues	O
to	O
maintain	O
the	O
previous	O
C-based	O
tools	O
.	O
</s>
<s>
Unlike	O
OpenBSD	B-Operating_System
ports	O
,	O
MirPorts	O
are	O
not	O
tied	O
to	O
specific	O
OS	O
versions	O
and	O
even	O
on	O
stable	O
releases	O
using	O
the	O
newest	O
version	O
was	O
recommended	O
.	O
</s>
<s>
Following	O
the	O
MirOS	B-Application
BSD	I-Application
policy	O
of	O
faster	O
software	O
availability	O
to	O
the	O
user	O
,	O
many	O
ports	O
removed	O
for	O
political	O
reasons	O
in	O
OpenBSD	B-Operating_System
(	O
e.g.	O
</s>
<s>
all	O
the	O
DJB	O
software	O
or	O
the	O
Flash	B-Operating_System
Plugin	I-Operating_System
)	O
have	O
been	O
kept	O
in	O
MirPorts	O
and	O
can	O
continue	O
to	O
be	O
used	O
.	O
</s>
<s>
MirPorts	O
was	O
intended	O
to	O
be	O
a	O
place	O
for	O
unofficial	O
or	O
rejected	O
OpenBSD	B-Operating_System
ports	O
.	O
</s>
