# DragonFly Release 2.6
## XX March 2010 (2.6.0)


The DragonFly 2.6 release is here!

Three release options are now available:  Our bare-bones CD ISO, a DVD ISO which includes a fully operational X environment, and a bare-bones bootable USB disk-key image (1G disk keys recommended).

In addition we will for the first time be shipping a 64-bit ISO.  64-bit support is stable but there will only be limited
pkgsrc support in this release.  Both the bare-bones CD ISO and a bootable USB disk-key image are available for the 64-bit release.

## Availability

The release ISO images should be available on most of the [[mirrors|mirrors]]. If the ISO is not available on a certain mirror, please try another one or download it from the DragonFly FTP server.


### MD5 sums

* MD5 (dfly-2.6.0_REL.img.gz) = 
* MD5 (dfly-2.6.0_REL.iso.gz) = 
* MD5 (dfly-amd64-2.6.0_REL.iso.gz) = 
* MD5 (dfly-gui-2.6.0_REL.iso.gz) = 

* MD5 (dfly-2.6.0_REL.img) = 
* MD5 (dfly-2.6.0_REL.iso) = 
* MD5 (dfly-amd64-2.6.0_REL.iso) = 
* MD5 (dfly-gui-2.6.0_REL.iso) = 

### pkgsrc packages

We offer over 8000 pre-built [pkgsrc](http://www.pkgsrc.org) packages for this release.   The [pkg_radd(1)](http://leaf.dragonflybsd.org/cgi/web-man?command=pkg_radd&section=ANY) utility may be used to download pre-built binary packages.  By default this script will query the main package site for a random redirect to one of our mirrors.  The path can be overridden by setting BINPKG_SITES in `/etc/settings.conf`.

To get a list of all packages, let [pkg_search(1)](http://leaf.dragonflybsd.org/cgi/web-man?command=pkg_search&section=ANY) download the summary file for that release:

    # pkg_search -d

We supply a Makefile in /usr to track the pkgsrc tree.  We also supply a GIT mirror of the NetBSD pkgsrc CVS repo as
well as the pkgsrc/wip (work in progress) repo at git://git.dragonflybsd.org/pkgsrc.git and we recommend that
users use it instead of pulling from NetBSD with CVS.  Our GIT mirror is updated four times a day.

## DragonFly 2.6.x Special Installation and Upgrade Notes

**VirtualBox and VMWare users** - Unless your virtual hard disk is 50G or larger we recommend
doing a UFS install and not the default HAMMER install.  We also recommend installing from the CD ISO
and not the DVD ISO.  The DVD ISO HAMMER install has bugs (see [[Known Release Issues|issues24]]).

**DVD ISO HAMMER install bugs (2.6.0 only)** - You will get a 'guard1x fail @...' loader panic.
See [[Known Release Issues|issues24]] on how to fix.

## DragonFly 2.6.0 Release Notes

### Release Improvements

> ### Kernel changes
* Imported tmpfs (efficient memory filesystem) from NetBSD.
* Added support for minidumps.
* Added swapcache support.
* Ported POSIX Message Queues from NetBSD (Google Summer of Code Project).
* Updated Linuxulator (now runs java, flash,...) for pc32
* fixed vinum root mounts
* Added watchdog framework (compatible with watchdogd(8))
* Added gpio framework
* Ported minidumps from FreeBSD (enabled by default)
* Added vkernel64
* Added hotplug pseudo-device
* Removed msfbufs and reimplemented sfbufs as a consumer of the newly added lwbufs (lightweight buffers)
* fixed checkpointing
* Updated opencrypto from FreeBSD-current
* Updated ACPI from FreeBSD 7.2
* Updated CPU initialization code From FreeBSD


> ### HAMMER changes
* Updated to HAMMER version 4, moving snapshot settings out of config files and moving snapshots to /var/hammer; add an UNDO and REDO FIFO to improve fsync performance.
* Extended 'hammer snapls' output to print mountpoints and snapshot notes.
* 'hammer viconfig' takes editor preference into account now
* XXX: REDO, fsync modes, ...

> ### Hardware changes (non-networking)
* uchcom(4): The driver for WinChipHead CH341/CH340 is now working stable
* glxsb(4): The driver has been imported from FreeBSD
* hifn(4): The driver has been fixed to work with updated opencrypto
* cs5536: Added support for watchdog and gpio on this chip
* nsclpcsio(4): The driver has been imported from OpenBSD
* Geode LX: Enable identification and features of this CPU
* New aibs(4) driver for ASUSTeK AI Booster ACPI ATK0110 voltage, temperature and fan sensors
* New kate(4) and km(4) drivers for AMD Family 0Fh, 10h and 11h AMD64 temperature sensors
* New aps(4) driver for ThinkPad Active Protection System accelerometer
* New wbsio(4) driver for Winbond LPC Super I/O attachment of lm(4) on any ISA port

> ### Hardware changes (networking)
* Imported the alc(4) driver for Atheros AR8131/AR8132 NICs
* Imported the e1000(4) driver from FreeBSD for Intel Pro/1000 NICs

> ### Userland changes
* null mounts now accept -o update
* awk(1): increased input field separator width to handle extended regexps.
* cpdup(1): added -VV option to verify file's contents and ignore mtime entirely.
* mount_nfs(8):rdirplus is now the default
* periodic(8) security now also reports pkgsrc vulnerabilities
* watchdogd: import from OpenBSD
* hotplugd(8): import from OpenBSD

> ### amd64 related changes
* amd64 has been renamed to x86_64

> ### Removals
* The T/TCP extension is no longer supported

> ### Contributed Software
* Updated BIND to 9.5.2-P3 incl. DNSSEC support available by default
* Updated SENDMAIL to 8.14.4
* Updated wpa_supplicant to 0.6.10
* Updated hostapd to 0.6.10
* Updated groff to 1.20.1
* Updated file to 5.04
* Updated ncurses to 5.7
* Updated top to 3.8beta1 including DragonFly specific patches
* Updated less to 436
* Updated openssh to 5.3p1 (with HPN patch)
* Updated gcc 4.4 to 4.4.2
* Added binutils 2.20
* Added cryptodev support to OpenSSL

>### Security related
* ssh server: change defaults for new installations to disallow plain text passwords and allow root login via public key

>### General Improvements