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<head>

<title>OpenBSD 6.2</title>

</head>

<h2>

6.2

</h2>

<table>

<tr>

<td>

<td>

Released October 9, 2017<br>

<br>

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<ul>

<li>See the information on <a href="ftp.html">the FTP page</a> for

a list of mirror machines.

<li>Go to the <font color="#e00000">pub/OpenBSD/6.2/</font> directory on

<li>Go to the <code class=reldir>pub/OpenBSD/6.2/</code> directory on

one of the mirror sites.

<li>Have a look at <a href="errata62.html">the 6.2 errata page</a> for a list

of bugs and workarounds.

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<li><a href="https://man.openbsd.org/signify.1">signify(1)</a>

pubkeys for this release:<p>

<td>

openbsd-62-base.pub:

</td><td>

<td>

RWRVWzAMgtyg7g27STK1h1xA6RIwtjex6Vr5Y9q5SC5q5+b0GN4lLhfu

</td></tr><tr><td>

openbsd-62-fw.pub:

</td><td>

<td>

RWSbA8C2TPUQLi48EqHtg7Rx7KGDt6E/2d8OeJinGZPbpoqGRxA0N2oW

</td></tr><tr><td>

openbsd-62-pkg.pub:

</td><td>

<td>

RWRvEq+UPCq0VGI9ar7VMy+HYKDrOb4WS5JLhdUBiX3qvJgPQjyZSTxI

</td></tr>

</table>

<p>

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sys.tar.gz, xenocara.tar.gz, ports.tar.gz files, or in the

files fetched via ports.tar.gz.

</ul>

</table>

<hr>

<p>

This is a partial list of new features and systems included in OpenBSD 6.2.

For a comprehensive list, see the <a href="plus62.html">changelog</a> leading

to 6.2.

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<li>Repair <a href="https://man.openbsd.org/ioapic.4">ioapic(4)</a> misconfigurations.

</ul>

<p>

<li><a href="https://man.openbsd.org/amd64/vmm.4">vmm(4)</a>/

<a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> improvements:

<ul>

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<li>Many fixes to <a href="https://man.openbsd.org/amd64/vmctl.8">vmctl(8)</a>

and <a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> error handling.

</ul>

<p>

<li>IEEE 802.11 wireless stack improvements:

<ul>

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interface is put into debug mode with

<a href="https://man.openbsd.org/ifconfig.8">ifconfig(8)</a>.

</ul>

<p>

<li>Generic network stack improvements:

<ul>

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uses a smarter strategy to drop packets.

<li>Enabled the use of per-CPU caches in the network packet allocators.

</ul>

<p>

<li>Installer improvements:

<ul>

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<li>Backwards compatibility code to support the 'rtsol' keyword in

<a href="https://man.openbsd.org/hostname.if.5">hostname.if(5)</a>

has been removed.

<li>The <tt>install.site</tt> and <tt>upgrade.site</tt> scripts are now

<li>The <code>install.site</code> and <code>upgrade.site</code> scripts are now

executed at the end of the install/upgrade process.

<li>More detailed information is shown to identify disks.

<li>The IPv6 default router selection has been fixed.

<li>On the amd64 platform, AES-NI is used if present.

</ul>

<p>

<li>Routing daemons and other userland network improvements:

<ul>

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explicitly created. This avoids confusion as they were previously

used implicitly.

now has a <tt>-W recvlimit</tt> option to terminate netcat after

now has a <code>-W recvlimit</code> option to terminate netcat after

receiving the specified number of packets. This allows for a UDP

request to be sent, a reply to be received and the result checked on

the command line.

now has a <tt>-Z</tt> option, allowing the peer certificate and chain to be

now has a <code>-Z</code> option, allowing the peer certificate and chain to be

saved to a file in PEM format.

<li>A new <tt>-T tlscompat</tt> option was added to

<li>A new <code>-T tlscompat</code> option was added to

<a href="https://man.openbsd.org/nc.1">nc(1)</a>, which enables the use

of all TLS protocols and libtls "compat" ciphers.

<li>Various races have been fixed in

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<a href="https://man.openbsd.org/rdomain.4">routing domains</a>,

this provides virtual router functionality.

</ul>

<p>

<li>Security improvements:

<ul>

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optimized away.

<li>In kernel, randomly bias down the top-of-stack per kthread.

</ul>

<p>

<li><a href="https://man.openbsd.org/dhcpd.8">dhcpd(8)</a>/

<a href="https://man.openbsd.org/dhcrelay.8">dhcrelay(8)</a> improvements:

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<a href="https://man.openbsd.org/dhcrelay.8">dhcrelay(8)</a>

logging to stderr when it is started with the -d option.

</ul>

<p>

<li><a href="https://man.openbsd.org/dhclient.8">dhclient(8)</a> improvements:

<ul>

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<li>Remove the -u option, broken since 2013 without complaints.

<li>Use /dev/bpf instead of /dev/bpf0.

</ul>

<p>

<li>Assorted improvements:

<ul>

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environment variable was added.

<li>The performance of the memory deallocator used by

<a href="https://man.openbsd.org/ksh.1">ksh(1)</a> has been fixed.

<li>The <tt>emacs-usemeta</tt> <a href="https://man.openbsd.org/ksh.1">ksh(1)</a>

<li>The <code>emacs-usemeta</code> <a href="https://man.openbsd.org/ksh.1">ksh(1)</a>

flag is no longer needed and is now deprecated.

<li>New <a href="https://man.openbsd.org/futex">futex(2)</a> syscall.

<li>New pthread

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without a system call on OCTEON II and later.

<li>FPU is enabled on OCTEON III.

<li>GENERIC kernels now include a .SUNW_ctf section containing CTF data.

command, send an uncatchable SIGABRT to a process.

<li>New <a href="https://man.openbsd.org/ddb.4">ddb(4)</a> <tt>pprint</tt>

<li>New <a href="https://man.openbsd.org/ddb.4">ddb(4)</a> <code>pprint</code>

command, using CTF information to "pretty print" global symbols.

<tt>show struct</tt> command, using CTF information to display the content

<code>show struct</code> command, using CTF information to display the content

of in memory C structures.

<li>x86: <a href="https://man.openbsd.org/ddb.4">ddb(4)</a> uses CTF data

to display the correct number of function arguments in backtraces.

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<a href="https://man.openbsd.org/strstr.3">strstr(3)</a>,

<a href="https://man.openbsd.org/qsort.3">qsort(3)</a>,

and <a href="https://man.openbsd.org/glob.3">glob(3)</a>.

<li>Added support for <tt>EV_RECEIPT</tt> and <tt>EV_DISPATCH</tt> to

<li>Added support for <code>EV_RECEIPT</code> and <code>EV_DISPATCH</code> to

<a href="https://man.openbsd.org/kqueue.2">kqueue(2)</a>.

<li>Added <a href="https://man.openbsd.org/ktrace.2">fktrace(2)</a>.

</ul>

<p>

<li>OpenSMTPD 6.0.0

<ul>

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<li>Remove experimental support for filters.

<li>Assorted code and documentation cleanups and improvements.

</ul>

<p>

<li>OpenSSH 7.6

<ul>

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channel IDs greater than 0x7FFFFFFF.

</ul>

<p>

<li>LibreSSL 2.6.3

<ul>

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is called with a NULL pointer it now

returns the default protocols.

</ul>

<p>

<li>mandoc 1.14.3

<ul>

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<code>.Bl</code> macro.

</ul>

<p>

<li>Ports and packages:

<li><p>Ports and packages:

<dl>

<p>A massive amount of clang-related fixes happened between 6.1 and 6.2.

<dt>A massive amount of clang-related fixes happened between 6.1 and 6.2.

<dt>Many pre-built packages for each architecture:

<p>Many pre-built packages for each architecture:

</dl>

<tr>

<ul>

<li>aarch64: 7942

<li>alpha: 7426

<li>amd64: 9728

</ul></td><td valign=top width="25%"><ul>

<li>arm: 7939

<li>hppa: 6260

<li>i386: 9685

</ul></td><td valign=top width="25%"><ul>

<li>mips64: 7972

<li>mips64el: 7984

<li>powerpc: 8133

</ul></td><td valign=top width="25%"><ul>

<li>sparc64: 8281

</ul></td></tr></table>

</ul>

<p>

<dl>

<p>Some highlights:

<dt>Some highlights:

</dl>

<tr>

<li>AFL 2.51b

<li>CMake 3.9.3

<li>Chromium 61.0.3163.100

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<li>MariaDB 10.0.32

<li>Mozilla Firefox 52.4.0esr and 56.0.0

<li>Mozilla Thunderbird 52.2.1

</ul></td><td valign=top width="50%"><ul>

<li>Mutt 1.9.1 and NeoMutt 20170912

<li>Node.js 6.11.2

<li>Ocaml 4.03.0

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<li>TeX Live 2016

<li>Vim 8.0.0987

<li>Xfce 4.12

</ul></td></tr></table>

</ul>

<p>

<li>As usual, steady improvements in manual pages and other documentation.

<p>

<li>The system includes the following major components from outside suppliers:

<ul>

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<li>Expat 2.2.4

</ul>

</section>

<hr>

<h3 id="install"><font color="#0000e0">How to install</font></h3>

<h3>How to install</h3>

Please refer to the following files on the mirror site for

extensive details on how to install OpenBSD 6.2 on your machine:

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.../OpenBSD/6.2/sparc64/INSTALL.sparc64</a>

</ul>

</section>

<hr>

<p>

Quick installer information for people familiar with OpenBSD, and the use of

the "<a href="https://man.openbsd.org/disklabel.8">disklabel</a> -E" command.

If you are at all confused when installing OpenBSD, read the relevant

INSTALL.* file as listed above!

<h3><font color="#e00000">OpenBSD/alpha:</font></h3>

<h3>OpenBSD/alpha:</h3>

<p>

<li>

Write <i>floppy62.fs</i> or <i>floppyB62.fs</i> (depending on your machine)

to a diskette and enter <i>boot dva0</i>.

Refer to INSTALL.alpha for more details.

<p>

<li>

Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install

will most likely fail.

</ul>

<h3><font color="#e00000">OpenBSD/amd64:</font></h3>

<h3>OpenBSD/amd64:</h3>

<p>

<li>

If your machine can boot from CD, you can write <i>install62.iso</i> or

<i>cd62.iso</i> to a CD and boot from it.

You may need to adjust your BIOS options first.

<p>

<li>

If your machine can boot from USB, you can write <i>install62.fs</i> or

<i>miniroot62.fs</i> to a USB stick and boot from it.

<p>

<li>

If you can't boot from a CD, floppy disk, or USB,

you can install across the network using PXE as described in the included

INSTALL.amd64 document.

<p>

<li>

If you are planning to dual boot OpenBSD with another OS, you will need to

read INSTALL.amd64.

</ul>

<h3><font color="#e00000">OpenBSD/arm64:</font></h3>

<h3>OpenBSD/arm64:</h3>

<p>

<li>

Write <i>miniroot62.fs</i> to a disk and boot from it after connecting

to the serial console. Refer to INSTALL.arm64 for more details.

<p>

</ul>

<h3><font color="#e00000">OpenBSD/armv7:</font></h3>

<h3>OpenBSD/armv7:</h3>

<p>

<li>

Write a system specific miniroot to an SD card and boot from it after connecting

to the serial console. Refer to INSTALL.armv7 for more details.

<p>

</ul>

<h3><font color="#e00000">OpenBSD/hppa:</font></h3>

<h3>OpenBSD/hppa:</h3>

<p>

<li>

Boot over the network by following the instructions in INSTALL.hppa or the

<a href="hppa.html#install">hppa platform page</a>.

</ul>

<h3><font color="#e00000">OpenBSD/i386:</font></h3>

<h3>OpenBSD/i386:</h3>

<p>

<li>

If your machine can boot from CD, you can write <i>install62.iso</i> or

<i>cd62.iso</i> to a CD and boot from it.

You may need to adjust your BIOS options first.

<p>

<li>

If your machine can boot from USB, you can write <i>install62.fs</i> or

<i>miniroot62.fs</i> to a USB stick and boot from it.

<p>

<li>

If you can't boot from a CD, floppy disk, or USB,

you can install across the network using PXE as described in

the included INSTALL.i386 document.

<p>

<li>

If you are planning on dual booting OpenBSD with another OS, you will need to

read INSTALL.i386.

</ul>

<h3><font color="#e00000">OpenBSD/landisk:</font></h3>

<h3>OpenBSD/landisk:</h3>

<p>

<li>

Write <i>miniroot62.fs</i> to the start of the CF

or disk, and boot normally.

</ul>

<h3><font color="#e00000">OpenBSD/loongson:</font></h3>

<h3>OpenBSD/loongson:</h3>

<p>

<li>

Write <i>miniroot62.fs</i> to a USB stick and boot bsd.rd from it

or boot bsd.rd via tftp.

Refer to the instructions in INSTALL.loongson for more details.

</ul>

<h3><font color="#e00000">OpenBSD/luna88k:</font></h3>

<h3>OpenBSD/luna88k:</h3>

<p>

<li>

Copy 'boot' and 'bsd.rd' to a Mach or UniOS partition, and boot the bootloader

Copy `boot' and `bsd.rd' to a Mach or UniOS partition, and boot the bootloader

from the PROM, and then bsd.rd from the bootloader.

Refer to the instructions in INSTALL.luna88k for more details.

</ul>

<h3><font color="#e00000">OpenBSD/macppc:</font></h3>

<h3>OpenBSD/macppc:</h3>

<p>

<li>

Burn the image from a mirror site to a CDROM, and power on your machine

while holding down the <i>C</i> key until the display turns on and

shows <i>OpenBSD/macppc boot</i>.

<p>

<li>

Alternatively, at the Open Firmware prompt, enter <i>boot cd:,ofwboot

/6.2/macppc/bsd.rd</i>

</ul>

<h3><font color="#e00000">OpenBSD/octeon:</font></h3>

<h3>OpenBSD/octeon:</h3>

<p>

<li>

After connecting a serial port, boot bsd.rd over the network via DHCP/tftp.

Refer to the instructions in INSTALL.octeon for more details.

</ul>

<h3><font color="#e00000">OpenBSD/sgi:</font></h3>

<h3>OpenBSD/sgi:</h3>

<p>

<li>

To install, burn cd62.iso on a CD-R, put it in the CD drive of your

machine and select <i>Install System Software</i> from the System Maintenance

menu. Indigo/Indy/Indigo2 (R4000) systems will not boot automatically from

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Refer to the instructions in INSTALL.sgi for more details.

<p>

<li>

If your machine doesn't have a CD drive, you can setup a DHCP/tftp network

server, and boot using "bootp()/bsd.rd.IP##" using the kernel matching your

system type. Refer to the instructions in INSTALL.sgi for more details.

</ul>

<h3><font color="#e00000">OpenBSD/sparc64:</font></h3>

<h3>OpenBSD/sparc64:</h3>

<p>

<li>

Burn the image from a mirror site to a CDROM, boot from it, and type

<i>boot cdrom</i>.

<p>

<li>

If this doesn't work, or if you don't have a CDROM drive, you can write

<i>floppy62.fs</i> or <i>floppyB62.fs</i>

(depending on your machine) to a floppy and boot it with <i>boot

floppy</i>. Refer to INSTALL.sparc64 for details.

<p>

<li>

Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install

will most likely fail.

<p>

<li>

You can also write <i>miniroot62.fs</i> to the swap partition on

the disk and boot with <i>boot disk:b</i>.

<p>

<li>

If nothing works, you can boot over the network as described in INSTALL.sparc64.

</ul>

</section>

<hr>

<h3 id="upgrade"><font color="#0000e0">How to upgrade</font></h3>

<h3>How to upgrade</h3>

If you already have an OpenBSD 6.1 system, and do not want to reinstall,

upgrade instructions and advice can be found in the

<a href="faq/upgrade62.html">Upgrade Guide</a>.

<p>

</section>

<hr>

<h3 id="sourcecode"><font color="#0000e0">Notes about the source code</font></h3>

<h3>Notes about the source code</h3>

<tt>src.tar.gz</tt> contains a source archive starting at <tt>/usr/src</tt>.

<code>src.tar.gz</code> contains a source archive starting at <code>/usr/src</code>.

This file contains everything you need except for the kernel sources,

which are in a separate archive.

To extract:

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# <b>tar xvfz /tmp/src.tar.gz</b>

</pre></blockquote>

<tt>sys.tar.gz</tt> contains a source archive starting at <tt>/usr/src/sys</tt>.

<code>sys.tar.gz</code> contains a source archive starting at <code>/usr/src/sys</code>.

This file contains all the kernel sources you need to rebuild kernels.

To extract:

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Using these files

results in a much faster initial CVS update than you could expect from

a fresh checkout of the full OpenBSD source tree.

<p>

</section>

<hr>

<h3 id="ports"><font color="#0000e0">Ports Tree</font></h3>

<h3>Ports Tree</h3>

A ports tree archive is also provided. To extract:

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If you're interested in seeing a port added, would like to help out, or just

would like to know more, the mailing list

<a href="mail.html">ports@openbsd.org</a> is a good place to know.

<p>

</section>

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