<s>
systemd-boot	B-Application
is	O
a	O
free	B-License
and	I-License
open-source	I-License
boot	B-Application
manager	I-Application
created	O
by	O
obsoleting	O
the	O
gummiboot	B-Application
project	O
and	O
merging	O
it	O
into	O
systemd	B-Application
in	O
May	O
2015	O
.	O
</s>
<s>
gummiboot	B-Application
was	O
developed	O
by	O
the	O
Red	O
Hat	O
employees	O
Kay	O
Sievers	O
and	O
Harald	O
Hoyer	O
and	O
designed	O
as	O
a	O
minimal	O
alternative	O
to	O
GNU	B-Application
GRUB	I-Application
for	O
systems	O
using	O
the	O
Unified	B-Architecture
Extensible	I-Architecture
Firmware	I-Architecture
Interface	I-Architecture
(	O
UEFI	B-Architecture
)	O
.	O
</s>
<s>
It	O
automatically	O
detected	O
bootable	O
images	O
(	O
including	O
operating	B-General_Concept
systems	I-General_Concept
and	O
other	O
boot	B-Application
loaders	I-Application
)	O
,	O
did	O
not	O
require	O
a	O
configuration	O
file	O
,	O
provided	O
a	O
basic	O
menu-based	O
interface	O
,	O
and	O
could	O
also	O
integrate	O
with	O
systemd	B-Application
to	O
provide	O
performance	O
data	O
.	O
</s>
<s>
As	O
a	O
word	O
play	O
,	O
the	O
name	O
"	O
gummiboot	B-Application
"	O
means	O
"	O
rubber	O
(	O
inflatable	O
)	O
boat	O
"	O
in	O
German	O
,	O
the	O
native	O
language	O
of	O
its	O
initial	O
developers	O
.	O
</s>
<s>
Despite	O
being	O
developed	O
by	O
two	O
of	O
its	O
employees	O
,	O
Red	O
Hat	O
's	O
Fedora	O
Project	O
did	O
not	O
use	O
gummiboot	B-Application
for	O
booting	O
UEFI	B-Architecture
systems	O
;	O
instead	O
,	O
it	O
used	O
efilinux	O
to	O
chainload	B-Operating_System
GRUB	B-Application
.	O
</s>
<s>
gummiboot	B-Application
was	O
licensed	O
under	O
LGPL-2.1-or-later	B-Application
,	O
unlike	O
GRUB	B-Application
which	O
is	O
licensed	O
under	O
the	O
GPL-3.0-or-later	B-License
.	O
</s>
<s>
This	O
distinction	O
was	O
intended	O
to	O
allow	O
gummiboot	B-Application
to	O
be	O
suitable	O
for	O
use	O
on	O
UEFI	B-Architecture
systems	O
implementing	O
secure	O
boot	O
,	O
due	O
to	O
concerns	O
surrounding	O
its	O
requirement	O
to	O
distribute	O
all	O
authorization	O
keys	O
(	O
digital	O
certificates	O
)	O
needed	O
to	O
run	O
GPL-v3-licensed	O
software	O
if	O
hardware	O
restrictions	O
such	O
as	O
secure	O
boot	O
are	O
in	O
effect	O
.	O
</s>
