Comparison of open source operating systems

Comparison of open source operating systems: These tables compare the various free software / open source operating systems. Where not all of the non-EOL versions support a feature, the first version which support it is listed.

Contents

1 General information

2 Supported architectures

3 Supported hardware

3.1 General

3.2 Networking

4 Network technologies

5 Supported file systems

6 Supported file system features

7 Security features

8 See also

9 References

10 External links

10.1 Emulator images

10.2 Software and packages

General information

License Kernel type Kernel programming language Kernel Thread support OS family: Oldest non-EOL version^{[Note 1]} Forks

Linux GPL/LGPL Monolithic with modules C 1:1 Unix-like 2.4 µClinux

FreeBSD BSD (usually, GPL/LGPL software included) Monolithic with modules C 1:1 BSD, Unix-like 7.3 DragonFly BSD

OpenBSD BSD Monolithic with modules^{[Note 2]} C 1:1 BSD, Unix-like 4.2 MirOS

NetBSD BSD Monolithic with modules C 1:1, M:N BSD, Unix-like 4 OpenBSD

DragonFly BSD BSD Hybrid C BSD, Unix-like No

OpenSolaris OpenIndiana CDDL Monolithic with modules C 1:1, M:N Unix No

AuroraUX BSD/CDDL Monolithic with modules C, Ada 1:1, M:N Unix No

Darwin OpenDarwin PureDarwin APSL Hybrid C, C++^{[Note 3]} 1:1 BSD, Unix, Unix-like, Mac OS X No

Minix BSD Microkernel C Unix-like No

FreeDOS GPL Monolithic C DOS 1.0

Haiku MIT Hybrid C, C++ BeOS No

House BSD Haskell own/original No

KolibriOS GPL Monolithic ASM own/original No

MenuetOS Menuet 64 Monolithic ASM own/original No KolibriOS

GNU Mach GNU Hurd GPL Microkernel Unix-like No

ReactOS GPL/LGPL Hybrid C, C++ Windows-like No

L4 Fiasco Pistachio GPL Microkernel C++ L4 No

Plan 9 LPL Monolithic C 1:1, 1:M Cothread style. own, unix inspired No Inferno, Plan B

AROS APL Microkernel C AmigaOS No

Syllable GPL Monolithic with modules C, C++ 1:1 Unix-like, BeOS, AmigaOS, POSIX No

Inferno GPL/LGPL/MIT C Plan 9 No OzInferno

FreeRTOS modified GPL RTOS C RTOS No

eCos modified GPL/eCos RTOS C, C++ RTOS No

RTEMS modified GPL, BSD RTOS C and ASM with native support for other languages including C++ and Ada POSIX, RTEID/ORKID, uITRON RTOS 4.7.1

HelenOS BSD Microkernel C M:N own/original No

E/OS GPLv2 Monolithic ASM, C 1:1 BeOS, Unix-like No

License Kernel type Kernel programming language Kernel Thread support OS family: Oldest non-EOL version^{[Note 1]} Forks

^ ^a ^b No for single line development model.

^ OpenBSD contains support for modules on some architectures. They are used only to add third-party features: extracting existing functions into modules in the same manner as FreeBSD is not possible.

^ For IOKit.

Supported architectures

x86 / i386 / IA-32 x86 SMP Xen IA-64 x86-64 PowerPC PowerPC SMP SPARC32 SPARC SMP Alpha MIPS ARM XScale M68k PA-RISC other hosted mode

Linux Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes FR-V, Cell, ETRAX CRIS, M32R, Xtensa, h8, s390, SuperH UML, coLinux, MkLinux, Itanium Linux-on-Linux, wombat

FreeBSD^[1] Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes No No PC98

OpenBSD^[2] Yes Yes No No Yes Yes No^{[Note 1]}^[3] Yes No Yes Yes Yes Yes Yes Yes SuperH, VAX, m88k

NetBSD^[4] Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes SuperH, ns32k, VAX

DragonFly BSD^[5] Yes Yes No No Yes No No No No No No No No No No vkernel

OpenSolaris^[6] Yes Yes Yes No Yes No No Yes Yes No No No No No No

AuroraUX^[6] Yes Yes Yes No Yes Yes^{[Note 1]} No Yes Yes No Yes^{[Note 1]} Yes No No No

Darwin OpenDarwin^[7] Yes Yes No No Yes Yes Yes No No No No Yes No Yes No L4/Darwin

Minix^[8] Yes No No No No No No No No No No No No No No

FreeDOS Yes No No No No No No No No No No No No No No

Haiku Yes Yes No No No No No No No No No No No No No

KolibriOS Yes No No No Yes No No No No No No No No No No

MenuetOS Yes No No No Yes No No No No No No No No No No

GNU Mach GNU Hurd Yes No No No No No No No No No No No No No Yes

ReactOS Yes Yes No^{[Note 1]} No Yes No^{[Note 1]} No^{[Note 1]} No No No No Yes No No No

L4 Pistachio Yes No No Yes^{[Note 2]} Yes^{[Note 2]} Yes^{[Note 2]} No No No Yes^{[Note 2]} Yes^{[Note 2]} Yes No No No

Plan 9 Yes Yes Yes No Yes Yes Yes Yes^{[Note 3]} Yes^{[Note 3]} Yes Yes Yes Yes Yes^{[Note 3]} No See ^[9] and ^[10] lguest, vx32

AROS Yes No No No Yes Yes No No No No No No No Yes No i386-linux, i386-freebsd

Syllable Yes Yes No No No No No No No No No No No No No

Inferno Yes ? No No ? Yes ? Yes ? No Yes Yes Yes Yes^{[Note 3]} No AMD Am29000^{[Note 3]}, Texas Instruments OMAP Microsoft Windows, Linux, FreeBSD, Plan 9, Mac OS X, Solaris, Irix, Unixware^{[Note 3]}, HP-UX^{[Note 3]}, Internet Explorer

FreeRTOS Yes No No No No No No No No No Yes Yes No No No AVR, PIC, MSP430, HCS12, 8052, MicroBlaze, Cortex-M3, H8S

eCos Yes Yes No No No Yes No Yes No No Yes Yes Yes Yes No CalmRISC, ColdFire, FR-V, h8, Matsushita AM3x, Nios II, NEC V8xx, SuperH Microsoft Windows, Linux

RTEMS Yes No Xen No No Yes No Yes No No Yes Yes Yes Yes Yes Blackfin, Nios II, Coldfire, Texas Instruments C3x/C4x, SuperH, H8S Linux, Solaris, Cygwin, FreeBSD plus multiple CPU simulators

HelenOS Yes Yes No Yes Yes Yes No No Yes No Yes Yes No No No

E/OS Yes No No No No No No No No No No Yes No No No

x86 / i386 / IA-32 x86 SMP Xen IA-64 x86-64 PowerPC PowerPC SMP SPARC32 SPARC SMP Alpha MIPS ARM XScale M68k PA-RISC other hosted mode

^ ^a ^b ^c ^d ^e ^f Work in progress.

^ ^a ^b ^c ^d ^e Pistachio supports AMD64; Fiasco only in the CVS version.

^ ^a ^b ^c ^d ^e ^f ^g Support is outdated or unmaintained.

Supported hardware

General

ATA SATA SCSI USB 2.0 USB 1.1 FireWire PCMCIA/PC card AGP Nvidia official driver IA-32 Nvidia official driver IA-64 Nvidia official driver AMD64 ATI official driver x86 ATI official driver x86-64 Ati r200 free software driver Ati r300 free software driver Nvidia free software driver Audio TV tuner, video editing or webcam

Linux Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes,nv(2d only), nouveau(3d with mesa) OSS, ALSA V4L,V4L2

FreeBSD Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Yes Yes Yes Yes Yes

OpenBSD Yes Yes Yes Yes Yes No Yes Yes No No No No No Yes^[14] 2d only^[14] 2d only^[15] Yes Yes

NetBSD Yes Yes Yes Yes Yes Yes Yes Yes No No No No No Yes Yes

DragonFly BSD Yes Yes Yes Yes Yes No No No No No Yes

OpenSolaris Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes No No Yes

AuroraUX Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes No No Yes

Darwin and OpenDarwin Yes Yes Yes Yes Yes No No No No No

Minix No No No No No

FreeDOS Yes Yes Yes No^[16] No^[16] No Yes No No No No No No No No Yes No

Haiku Yes Yes Yes No No No No No Yes

KolibriOS Yes Yes No No No No No No No No No No Yes No

MenuetOS Yes No No Yes Yes No No No No No No No Yes Yes

GNU Mach and GNU Hurd Yes No No No No No No No No No No

ReactOS Yes Yes Yes Yes^[17] Yes^[17] No No Yes No No No No No Yes

L4 Fiasco Pistachio No No No No No

Plan 9 Yes Yes Yes Yes Yes Yes Yes No No No No No Yes Yes

AROS Yes Yes No No No own No 2D only

Syllable Yes Yes Yes Yes Yes No No No No No Yes

Inferno Yes No Yes No No No Yes Yes No No No No No Yes

FreeRTOS No No No No No

eCos Yes Yes Yes Yes No No No No No

RTEMS Yes Yes No No No No No

HelenOS Yes No No No Yes No No No No No No No No No No No No No

E/OS Yes Yes Yes No^[6] Yes Yes Yes No No No No No No Yes Yes

No No

ATA SATA SCSI USB 2.0 USB 1.1 FireWire PCMCIA/PC card AGP Nvidia official driver IA-32 Nvidia official driver IA-64 Nvidia official driver AMD64 ATI official driver x86 ATI official driver x86-64 Ati r200 free software driver Ati r300 free software driver Nvidia free software driver Audio TV tuner, video editing or webcam

Networking

Networking supported NE2000/RTL8029 RTL8139 Gigabit Ethernet 10-gigabit Ethernet Wireless LAN Bluetooth IrDA

Linux Yes Yes Yes Yes Yes Yes Yes Yes

FreeBSD Yes Yes Yes Yes Yes Yes Yes Yes

OpenBSD Yes Yes Yes Yes Yes Yes Yes No

NetBSD Yes Yes Yes Yes Yes Yes Yes Yes

DragonFly BSD Yes Yes Yes Yes

OpenSolaris Yes Yes Yes Yes Yes No No

AuroraUX Yes Yes Yes Yes Yes No No

Darwin OpenDarwin Yes

Minix Yes Yes

FreeDOS Yes Yes Yes

Haiku Yes Yes Yes Yes Yes

KolibriOS Yes Yes Yes No Yes

MenuetOS Yes Yes No No

GNU Mach GNU Hurd

ReactOS Yes Yes Yes Yes Yes Yes No No

L4 Fiasco Pistachio

Plan 9 Yes Yes Yes Yes Yes Yes No No

AROS Yes Yes

Syllable Yes Yes Yes Yes

Inferno Yes Yes Yes Yes Yes No No

FreeRTOS

eCos Yes Yes Yes

RTEMS Yes Yes Yes Yes No No No No

HelenOS Yes Yes No No No No No No

E/OS Yes Yes Yes Yes Yes No^[7] No No

Networking supported NE2000/RTL8029 RTL8139 Gigabit Ethernet 10-gigabit Ethernet Wireless LAN Bluetooth IrDA

Network technologies

Firewall TCP/IP IPv6 IPX PPP PPPoE DHCP bridge TUN/TAP ssh OpenVPN

Linux netfilter/iptables Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

FreeBSD IPFW2, IPFilter, PF Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

OpenBSD PF Yes Yes No Yes Yes Yes Yes Yes Yes Yes

NetBSD IPFilter, PF Yes Yes Yes Yes^{[Note 1]} Yes Yes Yes Yes Yes

DragonFly BSD IPFW2, IPFilter, PF Yes Yes Yes Yes

OpenSolaris IPFilter Yes Yes Yes Yes Yes Yes Yes^{[Note 2]} Yes Yes

AuroraUX IPFilter Yes Yes Yes Yes Yes Yes Yes Yes

Darwin OpenDarwin IPFW Yes Yes Yes Yes

Minix Yes Yes

FreeDOS Yes Yes Yes Yes Yes Yes

Haiku None Yes

KolibriOS None Yes No Yes No Yes

MenuetOS None Yes No No No

GNU Mach GNU Hurd

ReactOS

L4 Fiasco Pistachio

Plan 9 ipmux Yes Yes No Yes Yes Yes Yes No Yes No

AROS Yes

Syllable Yes Yes Yes Yes Yes

Inferno ipmux Yes Yes No Yes Yes Yes Yes No No No

FreeRTOS

eCos Yes Yes Yes Yes Yes

RTEMS Yes No Yes Yes Yes Yes Yes

HelenOS Yes No No No No No No No No No

E/OS Yes Yes Yes Yes Yes Yes Yes Yes Yes No

Firewall TCP/IP IPv6 IPX PPP PPPoE DHCP bridge TUN/TAP ssh OpenVPN

^ NetBSD has a kernel-only PPPoE driver.

^ OpenSolaris has support for a TUN driver with TAP support. [1]

Supported file systems

FAT16 / dosfs, FAT32 / vfat NTFS Ext2 Ext3 XFS ReiserFS UFS UFS2 HFS HFS+ Minixfs BFS ISO 9660 UDF NFS SMBFS RAM disk / tmpfs ZFS Other special file systems

Linux Yes Yes^{[Note 1]}^{[Note 2]} Yes Yes Yes Yes Yes^{[Note 3]} Yes^[20] Yes Yes^{[Note 4]} Yes Yes^{[Note 3]} Yes Yes Yes Yes Yes Yes 9P,^{[Note 5]} FUSE,^{[Note 5]} sysfs,^{[Note 5]} configfs,^{[Note 5]} Reiser4,^{[Note 5]}^{[Note 6]} JFS, Btrfs, UnionFS, Ext4

FreeBSD Yes Yes^{[Note 3]}^{[Note 2]} Yes Yes^{[Note 3]} Yes^{[Note 1]} Yes^{[Note 3]} Yes Yes No No No No Yes Yes Yes Yes Yes Yes FUSE, nullfs, UnionFS

OpenBSD Yes Yes^{[Note 3]} Yes No No Yes No No No No No Yes Yes Yes Yes Yes No AFS

NetBSD Yes Yes^{[Note 3]}^{[Note 2]} Yes Yes Yes Yes^{[Note 3]} Yes Yes^{[Note 3]} Yes Yes Yes No PUFFS, LFS, EFS

DragonFly BSD Yes Yes^{[Note 3]} Yes Yes Yes Yes No HAMMER, nullfs

OpenSolaris Yes Yes ^{[Note 2]}^{[Note 7]} No No No No Yes No No No No Yes Yes Yes Yes Yes Yes CIFS (native), QFS

AuroraUX Yes Yes ^{[Note 2]}^{[Note 7]} Yes Yes No No Yes No No No No Yes Yes Yes Yes Yes Yes CIFS (native), QFS

Darwin OpenDarwin Yes Yes^{[Note 3]}^{[Note 2]} Yes Yes Yes Yes Yes Yes Yes

Minix Yes No Yes No

FreeDOS Yes No No No No No No No No Yes Yes

Haiku Yes Yes ^{[Note 2]} Yes

KolibriOS Yes Yes^{[Note 3]} Yes^{[Note 3]} Yes^{[Note 3]} Yes Yes

MenuetOS Yes

GNU Mach GNU Hurd Yes Yes Yes Yes Yes Yes

ReactOS Yes Yes No No No No No No

L4 Fiasco Pistachio Yes No

Plan 9 Yes Yes No No No No No No No No No Yes No Yes Yes Yes Fossil, Venti, most system services

AROS Yes Yes SFS, AFFS

Syllable Yes Yes^{[Note 3]} Yes^{[Note 3]} Yes^{[Note 3]} Yes Yes Yes AFS

Inferno Yes No No No No No No No No No No No Yes No No No Yes kfs, most system services

FreeRTOS

eCos Yes Yes^{[Note 3]} Yes MMFS, ROMfs, JFFS2, YAFFS

RTEMS Yes Yes Yes TarFS, TFTP FS, IMFS, miniIMFS

HelenOS Yes No Yes^{[Note 8]} No No No No No No No Yes No Yes No No No Yes No locfs, exFAT

E/OS Yes No Yes No No No No No No No Yes Yes^{[Note 9]} Yes No Yes Yes Yes No

FAT16 / dosfs, FAT32 / vfat NTFS Ext2 Ext3 XFS ReiserFS UFS UFS2 HFS HFS+ Minixfs BFS ISO 9660 UDF NFS SMBFS RAM disk / tmpfs ZFS Other special file systems

^ ^a ^b Experimental.

^ ^a ^b ^c ^d ^e ^f ^g Read/Write support via NTFS-3G.

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Read only kernel driver.

^ read/write access without journaling; HFS+ with journal either be opened read-only or be written with journal ignored (potentially corrupting the file system).

^ ^a ^b ^c ^d ^e 2.6 and later.

^ With patch [2].

^ ^a ^b OpenSolaris also has an in-kernel, native CIFS server built directly on the ZFS DMU.

^ Read only.

^ Default in series 028.

Supported file system features

RAID quota Resource access control encryption other special file system features

Linux Yes Yes Unix, ACL, MAC Yes LVM, EVMS

FreeBSD Yes Yes Unix, ACL, MAC Yes GEOM, snapshots, background fsck, user-mountable file systems

OpenBSD Yes Yes Unix Yes

NetBSD Yes Yes Unix, Veriexec Yes

DragonFly BSD Yes

OpenSolaris Yes Yes Unix, ACL, MAC Yes Solaris Volume Manager, ZFS, snapshots, transparent data repair

AuroraUX Yes Yes Unix, ACL, MAC Solaris Volume Manager, ZFS, snapshots, transparent data repair

Darwin OpenDarwin Yes Unix, ACL Yes

Minix Unix

FreeDOS No

KolibriOS No

MenuetOS No

GNU Mach GNU Hurd Unix

ReactOS No

L4 Fiasco Pistachio

Plan 9 No No Unix-like, no root No snapshots, venti archival storage, per-process namespace, user-mountable file systems

AROS

Syllable Unix 64-bit, journaling, extended file attributes

Inferno No No Unix-like, no root No per-process namespace, user-mountable file systems

FreeRTOS

eCos

RTEMS

HelenOS No No No No No

E/OS Yes Yes Unix Yes No

RAID quota Resource access control encryption other special file system features

Security features

Operating system Mandatory access control Software executable space protection Operating system-level virtualization Virtualisation Userspace protection Others

Linux SELinux, AppArmor^{[Note 1]} Exec Shield ^{[Note 1]}, PaX^{[Note 1]} Chroot, namespace and cgroups^{[Note 2]}, Linux-VServer^{[Note 1]}, OpenVZ^{[Note 1]} KVM IPFilter, IPTables grsecurity ^{[Note 1]}, RSBAC^{[Note 1]}

FreeBSD SeBSD^{[Note 3]} ^{[Note 4]}, TrustedBSD ProPolice/SSP^{[Note 5]} jail IPFW, PF

Darwin SEDarwin, TrustedBSD jail IPFW

OpenBSD W^X PF

OpenSolaris TrustedBSD Solaris Containers IPF

AuroraUX TrustedBSD Solaris Containers IPF

Plan 9 No No per-process namespaces

Inferno No No per-process namespaces

^ ^a ^b ^c ^d ^e ^f ^g available as a patch(not integrated into the linux kernel or the userland uttilities),see the security features of the Linux distribution for more details

^ LXC is a front-end to this; also see lwn.net

^ not integrated into the Operating system

^ see here [3] for more details

^ ProPolice/Stack-Smashing Protector has been enabled in base system since FreeBSD 8.0-RELEASE.

See also

Berkeley Software Distribution

Comparison of operating systems

Comparison of Linux distributions

Comparison of BSD operating systems

Comparison of kernels

Comparison of file systems

Comparison of platform virtual machines

Comparison of x86 DOS operating systems

List of operating systems

Live CD

Free software portal

Microsoft Windows

RTEMS

Unix

Unix-like

References

^ "Supported Platforms". Freebsd.org. http://www.freebsd.org/platforms/. Retrieved 2011-10-26.

^ "OpenBSD Platforms". OpenBSD. 2006-05-09. http://www.openbsd.org/plat.html. Retrieved 2006-06-13.

^ "OpenBSD/macppc". OpenBSD. 2006-05-23. http://www.openbsd.org/macppc.html#projects. Retrieved 2006-06-13.

^ "Hardware Supported by NetBSD". Netbsd.org. http://www.netbsd.org/Ports/. Retrieved 2011-10-26.

^ DragonFly Frequently Asked Questions^{[dead link]}

^ ^a ^b "OpenSolaris FAQ: Does the OpenSolaris project include source code for both the SPARC and x64/x86 architectures?". Opensolaris.org. 2009-10-26. http://www.opensolaris.org/os/about/faq/general_faq/#platforms. Retrieved 2011-10-26.

^ "OpenDarwin FAQ: Compatibility issues". Web.archive.org. 2007-04-15. http://web.archive.org/web/20070415181440/http://www.opendarwin.org/en/faq/ch01s03.html#hardware. Retrieved 2011-10-26.

^ "Minix 3 FAQ". Minix3.org. 2011-10-06. http://www.minix3.org/doc/faq.html#general. Retrieved 2011-10-26.

^ "The Various Ports". Plan9.bell-labs.com. http://plan9.bell-labs.com/sys/doc/port.html. Retrieved 2011-10-26.

^ "Other hardware (Plan 9 wiki)". Plan9.bell-labs.com. http://plan9.bell-labs.com/wiki/plan9/other_hardware/. Retrieved 2011-10-26.

^ ^a ^b "Manual Pages: radeon(4)". Openbsd.org. http://www.openbsd.org/cgi-bin/man.cgi?query=radeon&sektion=4&arch=i386&apropos=0&manpath=OpenBSD+Current. Retrieved 2011-10-26.

^ "Manual Pages: nv(4)". Openbsd.org. http://www.openbsd.org/cgi-bin/man.cgi?query=nv&apropos=0&sektion=4&manpath=OpenBSD+Current&arch=i386&format=html. Retrieved 2011-10-26.

^ ^a ^b USB with DOS - Limited support for some devices provided by third-party driver.

^ ^a ^b [4] - Very limited support.

^ [5]

External links

Unix History

Windows History

The FreeBSD home page

Info on FreeBSD (last updated March 21, 2004)

The OpenBSD home page

Info on OpenBSD (last updated February 17, 2002)

The NetBSD home page

Info on NetBSD (last updated February 17, 2002)

Apple's Mac OS X site

Info on Mac OS X (last updated March 4, 2002)

Info on Mac OS X Server (last updated February 14, 2002)

The DragonFly BSD home page

The RTEMS home page

Operating System Technical Comparison

Emulator images

Haiku Build Factory

Software and packages

freshmeat - mostly Linux

FreeBSD Ports - FreeBSD

FRESHports - FreeBSD

OpenBSD packages and ports - OpenBSD

pkgsrc - NetBSD, Linux, FreeBSD, Solaris, Darwin

OpenSolaris Download Center - OpenSolaris

Nexenta OS packages - OpenSolaris

Autopackage - Linux

Klik - Linux

OpenPKG - Linux, FreeBSD, NetBSD, Solaris

DarwinPorts - Darwin

MINIX 3 - Software - Minix

FreeDOS - Software - FreeDOS

FSF/UNESCO Free Software Directory - GNU Mach/GNU Hurd, Linux

ReactOS Support Database - ReactOS

Free Software ported to RTEMS

Kamidake (site gone) Kamidake (archive.org) - Syllable

Categories:
Software comparisons
Free software operating systems

	License	Kernel type	Kernel programming language	Kernel Thread support	OS family:	Oldest non-EOL version^{[Note 1]}	Forks
Linux	GPL/LGPL	Monolithic with modules	C	1:1	Unix-like	2.4	µClinux
FreeBSD	BSD (usually, GPL/LGPL software included)	Monolithic with modules	C	1:1	BSD, Unix-like	7.3	DragonFly BSD
OpenBSD	BSD	Monolithic with modules^{[Note 2]}	C	1:1	BSD, Unix-like	4.2	MirOS
NetBSD	BSD	Monolithic with modules	C	1:1, M:N	BSD, Unix-like	4	OpenBSD
DragonFly BSD	BSD	Hybrid	C		BSD, Unix-like	No
OpenSolaris OpenIndiana	CDDL	Monolithic with modules	C	1:1, M:N	Unix	No
AuroraUX	BSD/CDDL	Monolithic with modules	C, Ada	1:1, M:N	Unix	No
Darwin OpenDarwin PureDarwin	APSL	Hybrid	C, C++^{[Note 3]}	1:1	BSD, Unix, Unix-like, Mac OS X	No
Minix	BSD	Microkernel	C		Unix-like	No
FreeDOS	GPL	Monolithic	C		DOS	1.0
Haiku	MIT	Hybrid	C, C++		BeOS	No
House	BSD		Haskell		own/original	No
KolibriOS	GPL	Monolithic	ASM		own/original	No
MenuetOS	Menuet 64	Monolithic	ASM		own/original	No	KolibriOS
GNU Mach GNU Hurd	GPL	Microkernel			Unix-like	No
ReactOS	GPL/LGPL	Hybrid	C, C++		Windows-like	No
L4 Fiasco Pistachio	GPL	Microkernel	C++		L4	No
Plan 9	LPL	Monolithic	C	1:1, 1:M Cothread style.	own, unix inspired	No	Inferno, Plan B
AROS	APL	Microkernel	C		AmigaOS	No
Syllable	GPL	Monolithic with modules	C, C++	1:1	Unix-like, BeOS, AmigaOS, POSIX	No
Inferno	GPL/LGPL/MIT		C		Plan 9	No	OzInferno
FreeRTOS	modified GPL	RTOS	C		RTOS	No
eCos	modified GPL/eCos	RTOS	C, C++		RTOS	No
RTEMS	modified GPL, BSD	RTOS	C and ASM with native support for other languages including C++ and Ada	POSIX, RTEID/ORKID, uITRON	RTOS	4.7.1
HelenOS	BSD	Microkernel	C	M:N	own/original	No
E/OS	GPLv2	Monolithic	ASM, C	1:1	BeOS, Unix-like	No
	License	Kernel type	Kernel programming language	Kernel Thread support	OS family:	Oldest non-EOL version^{[Note 1]}	Forks

	x86 / i386 / IA-32	x86 SMP	Xen	IA-64	x86-64	PowerPC	PowerPC SMP	SPARC32	SPARC SMP	Alpha	MIPS	ARM	XScale	M68k	PA-RISC	other	hosted mode
Linux	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	FR-V, Cell, ETRAX CRIS, M32R, Xtensa, h8, s390, SuperH	UML, coLinux, MkLinux, Itanium Linux-on-Linux, wombat
FreeBSD^[1]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	No	No	PC98
OpenBSD^[2]	Yes	Yes	No	No	Yes	Yes	No^{[Note 1]}^[3]	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	SuperH, VAX, m88k
NetBSD^[4]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	SuperH, ns32k, VAX
DragonFly BSD^[5]	Yes	Yes	No	No	Yes	No	No	No	No	No	No	No	No	No	No		vkernel
OpenSolaris^[6]	Yes	Yes	Yes	No	Yes	No	No	Yes	Yes	No	No	No	No	No	No
AuroraUX^[6]	Yes	Yes	Yes	No	Yes	Yes^{[Note 1]}	No	Yes	Yes	No	Yes^{[Note 1]}	Yes	No	No	No
Darwin OpenDarwin^[7]	Yes	Yes	No	No	Yes	Yes	Yes	No	No	No	No	Yes	No	Yes	No		L4/Darwin
Minix^[8]	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No	No
FreeDOS	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No	No
Haiku	Yes	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No
KolibriOS	Yes	No	No	No	Yes	No	No	No	No	No	No	No	No	No	No
MenuetOS	Yes	No	No	No	Yes	No	No	No	No	No	No	No	No	No	No
GNU Mach GNU Hurd	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No	Yes
ReactOS	Yes	Yes	No^{[Note 1]}	No	Yes	No^{[Note 1]}	No^{[Note 1]}	No	No	No	No	Yes	No	No	No
L4 Pistachio	Yes	No	No	Yes^{[Note 2]}	Yes^{[Note 2]}	Yes^{[Note 2]}	No	No	No	Yes^{[Note 2]}	Yes^{[Note 2]}	Yes	No	No	No
Plan 9	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes^{[Note 3]}	Yes^{[Note 3]}	Yes	Yes	Yes	Yes	Yes^{[Note 3]}	No	See ^[9] and ^[10]	lguest, vx32
AROS	Yes	No	No	No	Yes	Yes	No	No	No	No	No	No	No	Yes	No		i386-linux, i386-freebsd
Syllable	Yes	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No
Inferno	Yes	?	No	No	?	Yes	?	Yes	?	No	Yes	Yes	Yes	Yes^{[Note 3]}	No	AMD Am29000^{[Note 3]}, Texas Instruments OMAP	Microsoft Windows, Linux, FreeBSD, Plan 9, Mac OS X, Solaris, Irix, Unixware^{[Note 3]}, HP-UX^{[Note 3]}, Internet Explorer
FreeRTOS	Yes	No	No	No	No	No	No	No	No	No	Yes	Yes	No	No	No	AVR, PIC, MSP430, HCS12, 8052, MicroBlaze, Cortex-M3, H8S
eCos	Yes	Yes	No	No	No	Yes	No	Yes	No	No	Yes	Yes	Yes	Yes	No	CalmRISC, ColdFire, FR-V, h8, Matsushita AM3x, Nios II, NEC V8xx, SuperH	Microsoft Windows, Linux
RTEMS	Yes	No	Xen	No	No	Yes	No	Yes	No	No	Yes	Yes	Yes	Yes	Yes	Blackfin, Nios II, Coldfire, Texas Instruments C3x/C4x, SuperH, H8S	Linux, Solaris, Cygwin, FreeBSD plus multiple CPU simulators
HelenOS	Yes	Yes	No	Yes	Yes	Yes	No	No	Yes	No	Yes	Yes	No	No	No
E/OS	Yes	No	No	No	No	No	No	No	No	No	No	Yes	No	No	No
	x86 / i386 / IA-32	x86 SMP	Xen	IA-64	x86-64	PowerPC	PowerPC SMP	SPARC32	SPARC SMP	Alpha	MIPS	ARM	XScale	M68k	PA-RISC	other	hosted mode

	ATA	SATA	SCSI	USB 2.0	USB 1.1	FireWire	PCMCIA/PC card	AGP	Nvidia official driver IA-32	Nvidia official driver IA-64	Nvidia official driver AMD64	ATI official driver x86	ATI official driver x86-64	Ati r200 free software driver	Ati r300 free software driver	Nvidia free software driver	Audio	TV tuner, video editing or webcam
Linux	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes,nv(2d only), nouveau(3d with mesa)	OSS, ALSA	V4L,V4L2
FreeBSD	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	Yes	Yes	Yes	Yes	Yes
OpenBSD	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	No	No	No	No	Yes^[14]	2d only^[14]	2d only^[15]	Yes	Yes
NetBSD	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No				Yes	Yes
DragonFly BSD	Yes	Yes	Yes	Yes	Yes				No	No	No	No	No				Yes
OpenSolaris	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	No				Yes
AuroraUX	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	No				Yes
Darwin and OpenDarwin	Yes	Yes	Yes	Yes	Yes				No	No	No	No	No
Minix									No	No	No	No	No
FreeDOS	Yes	Yes	Yes	No^[16]	No^[16]	No		Yes	No	No	No	No	No	No	No	No	Yes	No
Haiku	Yes				Yes			Yes	No	No	No	No	No				Yes
KolibriOS	Yes	Yes	No	No	No		No	No	No	No	No	No	No				Yes	No
MenuetOS	Yes	No	No	Yes	Yes		No	No	No	No	No	No	No				Yes	Yes
GNU Mach and GNU Hurd	Yes	No		No	No	No			No	No	No	No	No				No
ReactOS	Yes	Yes	Yes	Yes^[17]	Yes^[17]	No	No	Yes	No	No	No	No	No				Yes
L4 Fiasco Pistachio									No	No	No	No	No
Plan 9	Yes	Yes	Yes	Yes	Yes		Yes	Yes	No	No	No	No	No				Yes	Yes
AROS	Yes							Yes	No	No	No	own	No			2D only
Syllable	Yes	Yes		Yes	Yes			Yes	No	No	No	No	No				Yes
Inferno	Yes	No	Yes	No	No	No	Yes	Yes	No	No	No	No	No				Yes
FreeRTOS									No	No	No	No	No
eCos	Yes	Yes		Yes	Yes				No	No	No	No	No
RTEMS	Yes						Yes		No	No	No	No	No
HelenOS	Yes	No	No	No	Yes	No	No	No	No	No	No	No	No	No	No	No	No	No
E/OS	Yes	Yes	Yes	No^[6]	Yes	Yes	Yes	No	No	No	No	No	No				Yes	Yes
			No	No
	ATA	SATA	SCSI	USB 2.0	USB 1.1	FireWire	PCMCIA/PC card	AGP	Nvidia official driver IA-32	Nvidia official driver IA-64	Nvidia official driver AMD64	ATI official driver x86	ATI official driver x86-64	Ati r200 free software driver	Ati r300 free software driver	Nvidia free software driver	Audio	TV tuner, video editing or webcam

	Networking supported	NE2000/RTL8029	RTL8139	Gigabit Ethernet	10-gigabit Ethernet	Wireless LAN	Bluetooth	IrDA
Linux	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
FreeBSD	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
OpenBSD	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
NetBSD	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
DragonFly BSD	Yes			Yes	Yes	Yes
OpenSolaris	Yes		Yes	Yes	Yes	Yes	No	No
AuroraUX	Yes		Yes	Yes	Yes	Yes	No	No
Darwin OpenDarwin	Yes
Minix	Yes		Yes
FreeDOS	Yes	Yes	Yes
Haiku	Yes	Yes	Yes	Yes		Yes
KolibriOS	Yes	Yes	Yes				No	Yes
MenuetOS	Yes	Yes					No	No
GNU Mach GNU Hurd
ReactOS	Yes	Yes	Yes	Yes	Yes	Yes	No	No
L4 Fiasco Pistachio
Plan 9	Yes	Yes	Yes	Yes	Yes	Yes	No	No
AROS	Yes	Yes
Syllable	Yes	Yes	Yes	Yes
Inferno	Yes	Yes	Yes	Yes		Yes	No	No
FreeRTOS
eCos	Yes			Yes			Yes
RTEMS	Yes	Yes	Yes	Yes	No	No	No	No
HelenOS	Yes	Yes	No	No	No	No	No	No
E/OS	Yes	Yes	Yes	Yes	Yes	No^[7]	No	No
	Networking supported	NE2000/RTL8029	RTL8139	Gigabit Ethernet	10-gigabit Ethernet	Wireless LAN	Bluetooth	IrDA

	Firewall	TCP/IP	IPv6	IPX	PPP	PPPoE	DHCP	bridge	TUN/TAP	ssh	OpenVPN
Linux	netfilter/iptables	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
FreeBSD	IPFW2, IPFilter, PF	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
OpenBSD	PF	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NetBSD	IPFilter, PF	Yes	Yes		Yes	Yes^{[Note 1]}	Yes	Yes	Yes	Yes	Yes
DragonFly BSD	IPFW2, IPFilter, PF	Yes	Yes				Yes			Yes
OpenSolaris	IPFilter	Yes	Yes		Yes	Yes	Yes	Yes	Yes^{[Note 2]}	Yes	Yes
AuroraUX	IPFilter	Yes	Yes		Yes	Yes	Yes	Yes		Yes	Yes
Darwin OpenDarwin	IPFW	Yes	Yes				Yes			Yes
Minix		Yes								Yes
FreeDOS		Yes		Yes	Yes	Yes	Yes			Yes
Haiku	None	Yes
KolibriOS	None	Yes		No	Yes	No	Yes
MenuetOS	None	Yes		No	No	No
GNU Mach GNU Hurd
ReactOS
L4 Fiasco Pistachio
Plan 9	ipmux	Yes	Yes	No	Yes	Yes	Yes	Yes	No	Yes	No
AROS		Yes
Syllable		Yes			Yes	Yes	Yes			Yes
Inferno	ipmux	Yes	Yes	No	Yes	Yes	Yes	Yes	No	No	No
FreeRTOS
eCos		Yes	Yes		Yes		Yes			Yes
RTEMS		Yes	No		Yes	Yes	Yes	Yes	Yes
HelenOS		Yes	No	No	No	No	No	No	No	No	No
E/OS		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
	Firewall	TCP/IP	IPv6	IPX	PPP	PPPoE	DHCP	bridge	TUN/TAP	ssh	OpenVPN

	FAT16 / dosfs, FAT32 / vfat	NTFS	Ext2	Ext3	XFS	ReiserFS	UFS	UFS2	HFS	HFS+	Minixfs	BFS	ISO 9660	UDF	NFS	SMBFS	RAM disk / tmpfs	ZFS	Other special file systems
Linux	Yes	Yes^{[Note 1]}^{[Note 2]}	Yes	Yes	Yes	Yes	Yes^{[Note 3]}	Yes^[20]	Yes	Yes^{[Note 4]}	Yes	Yes^{[Note 3]}	Yes	Yes	Yes	Yes	Yes	Yes	9P,^{[Note 5]} FUSE,^{[Note 5]} sysfs,^{[Note 5]} configfs,^{[Note 5]} Reiser4,^{[Note 5]}^{[Note 6]} JFS, Btrfs, UnionFS, Ext4
FreeBSD	Yes	Yes^{[Note 3]}^{[Note 2]}	Yes	Yes^{[Note 3]}	Yes^{[Note 1]}	Yes^{[Note 3]}	Yes	Yes	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	FUSE, nullfs, UnionFS
OpenBSD	Yes	Yes^{[Note 3]}	Yes		No	No	Yes	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	No	AFS
NetBSD	Yes	Yes^{[Note 3]}^{[Note 2]}	Yes				Yes	Yes		Yes^{[Note 3]}			Yes	Yes^{[Note 3]}	Yes	Yes	Yes	No	PUFFS, LFS, EFS
DragonFly BSD	Yes	Yes^{[Note 3]}	Yes				Yes						Yes		Yes			No	HAMMER, nullfs
OpenSolaris	Yes	Yes ^{[Note 2]}^{[Note 7]}	No	No	No	No	Yes		No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	CIFS (native), QFS
AuroraUX	Yes	Yes ^{[Note 2]}^{[Note 7]}	Yes	Yes	No	No	Yes		No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	CIFS (native), QFS
Darwin OpenDarwin	Yes	Yes^{[Note 3]}^{[Note 2]}					Yes		Yes	Yes			Yes	Yes	Yes	Yes
Minix	Yes	No									Yes	No
FreeDOS	Yes	No	No	No	No	No	No				No	No	Yes				Yes
Haiku	Yes	Yes ^{[Note 2]}										Yes
KolibriOS	Yes	Yes^{[Note 3]}	Yes^{[Note 3]}	Yes^{[Note 3]}									Yes				Yes
MenuetOS	Yes
GNU Mach GNU Hurd	Yes		Yes				Yes						Yes		Yes		Yes
ReactOS	Yes		Yes	No	No	No	No				No	No
L4 Fiasco Pistachio	Yes	No
Plan 9	Yes		Yes	No	No	No	No	No	No	No	No	No	Yes	No	Yes	Yes	Yes		Fossil, Venti, most system services
AROS	Yes																Yes		SFS, AFFS
Syllable	Yes	Yes^{[Note 3]}	Yes^{[Note 3]}	Yes^{[Note 3]}								Yes	Yes				Yes		AFS
Inferno	Yes	No	No	No	No	No	No	No	No	No	No	No	Yes	No	No	No	Yes		kfs, most system services
FreeRTOS
eCos	Yes		Yes^{[Note 3]}														Yes		MMFS, ROMfs, JFFS2, YAFFS
RTEMS	Yes														Yes		Yes		TarFS, TFTP FS, IMFS, miniIMFS
HelenOS	Yes	No	Yes^{[Note 8]}	No	No	No	No	No	No	No	Yes	No	Yes	No	No	No	Yes	No	locfs, exFAT
E/OS	Yes	No	Yes	No	No	No	No	No	No	No	Yes	Yes^{[Note 9]}	Yes	No	Yes	Yes	Yes		No
	FAT16 / dosfs, FAT32 / vfat	NTFS	Ext2	Ext3	XFS	ReiserFS	UFS	UFS2	HFS	HFS+	Minixfs	BFS	ISO 9660	UDF	NFS	SMBFS	RAM disk / tmpfs	ZFS	Other special file systems

	RAID	quota	Resource access control	encryption	other special file system features
Linux	Yes	Yes	Unix, ACL, MAC	Yes	LVM, EVMS
FreeBSD	Yes	Yes	Unix, ACL, MAC	Yes	GEOM, snapshots, background fsck, user-mountable file systems
OpenBSD	Yes	Yes	Unix	Yes
NetBSD	Yes	Yes	Unix, Veriexec	Yes
DragonFly BSD		Yes
OpenSolaris	Yes	Yes	Unix, ACL, MAC	Yes	Solaris Volume Manager, ZFS, snapshots, transparent data repair
AuroraUX	Yes	Yes	Unix, ACL, MAC		Solaris Volume Manager, ZFS, snapshots, transparent data repair
Darwin OpenDarwin		Yes	Unix, ACL	Yes
Minix			Unix
FreeDOS			No
KolibriOS			No
MenuetOS			No
GNU Mach GNU Hurd			Unix
ReactOS			No
L4 Fiasco Pistachio
Plan 9	No	No	Unix-like, no root	No	snapshots, venti archival storage, per-process namespace, user-mountable file systems
AROS
Syllable			Unix		64-bit, journaling, extended file attributes
Inferno	No	No	Unix-like, no root	No	per-process namespace, user-mountable file systems
FreeRTOS
eCos
RTEMS
HelenOS	No	No	No	No	No
E/OS	Yes	Yes	Unix	Yes	No
	RAID	quota	Resource access control	encryption	other special file system features

Operating system	Mandatory access control	Software executable space protection	Operating system-level virtualization	Virtualisation	Userspace protection	Others
Linux	SELinux, AppArmor^{[Note 1]}	Exec Shield ^{[Note 1]}, PaX^{[Note 1]}	Chroot, namespace and cgroups^{[Note 2]}, Linux-VServer^{[Note 1]}, OpenVZ^{[Note 1]}	KVM	IPFilter, IPTables	grsecurity ^{[Note 1]}, RSBAC^{[Note 1]}
FreeBSD	SeBSD^{[Note 3]} ^{[Note 4]}, TrustedBSD	ProPolice/SSP^{[Note 5]}	jail		IPFW, PF
Darwin	SEDarwin, TrustedBSD		jail		IPFW
OpenBSD		W^X			PF
OpenSolaris	TrustedBSD		Solaris Containers		IPF
AuroraUX	TrustedBSD		Solaris Containers		IPF
Plan 9	No	No	per-process namespaces
Inferno	No	No	per-process namespaces

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Comparison of open source operating systems

Contents

General information

Supported architectures

Supported hardware

General

Networking

Network technologies

Supported file systems

Supported file system features

Security features

See also

References

External links

Emulator images

Software and packages

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Academic Dictionaries and Encyclopedias

Wikipedia

Comparison of open source operating systems

Contents

General information

Supported architectures

Supported hardware

General

Networking

Network technologies

Supported file systems

Supported file system features

Security features

See also

References

External links

Emulator images

Software and packages

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