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-<table class="head">
- <tr>
- <td class="head-ltitle">BOOT(8)</td>
- <td class="head-vol">System Manager's Manual (sparc64)</td>
- <td class="head-rtitle">BOOT(8)</td>
- </tr>
-</table>
-<div class="manual-text">
-<section class="Sh">
-<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
-<p class="Pp"><code class="Nm">boot</code>, <code class="Nm">ofwboot</code>
- &#x2014; <span class="Nd">system bootstrapping procedures</span></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
-<table class="Nm">
- <tr>
- <td><code class="Nm">boot</code></td>
- <td>[<code class="Fl">-adqsv</code>] [<var class="Ar">--</var>
- &#x27E8;<var class="Ar">boot string</var>&#x27E9;]</td>
- </tr>
-</table>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">Sun UltraSPARC systems support booting from locally attached
- storage media (e.g. hard disk, CD-ROM), and booting over Ethernet networks
- using BOOTP.</p>
-<section class="Ss">
-<h2 class="Ss" id="Power_fail_and_crash_recovery"><a class="permalink" href="#Power_fail_and_crash_recovery">Power
- fail and crash recovery</a></h2>
-<p class="Pp">Normally, the system will reboot itself at power-up or after
- crashes. An automatic consistency check of the file systems will be
- performed as described in <a class="Xr">fsck(8)</a>, and unless this fails,
- the system will resume multi-user operations.</p>
-</section>
-<section class="Ss">
-<h2 class="Ss" id="Cold_starts"><a class="permalink" href="#Cold_starts">Cold
- starts</a></h2>
-<p class="Pp">The Sun Open Firmware performs a Power On Self Test (POST), and
- then will boot an operating system according to configuration in Open
- Firmware environment variables.</p>
-</section>
-<section class="Ss">
-<h2 class="Ss" id="Boot_program_options"><a class="permalink" href="#Boot_program_options">Boot
- program options</a></h2>
-<dl class="Bl-tag">
- <dt id="a"><a class="permalink" href="#a"><code class="Fl">-a</code></a></dt>
- <dd>Prompt for the root file system device, the system crash dump device, and
- the path to <a class="Xr">init(8)</a>.</dd>
- <dt id="d"><a class="permalink" href="#d"><code class="Fl">-d</code></a></dt>
- <dd>Bring the system up in debug mode. Here it waits for a kernel debugger
- connect; see <a class="Xr">gdb(1)</a>.</dd>
- <dt id="q"><a class="permalink" href="#q"><code class="Fl">-q</code></a></dt>
- <dd>Boot the system in quiet mode.</dd>
- <dt id="s"><a class="permalink" href="#s"><code class="Fl">-s</code></a></dt>
- <dd>Bring the system up in single-user mode.</dd>
- <dt id="v"><a class="permalink" href="#v"><code class="Fl">-v</code></a></dt>
- <dd>Boot the system in verbose mode.</dd>
-</dl>
-<p class="Pp">Any extra flags or arguments, or the &#x27E8;<var class="Ar">boot
- string</var>&#x27E9; after the -- separator are passed to the boot PROM.
- Other flags are currently ignored.</p>
-<p class="Pp">At any time you can halt the running system and get back to the
- Open Firmware. If the console is the Sun framebuffer and keyboard, press the
- &#x2018;STOP&#x2019; and &#x2018;A&#x2019; keys at the same time on the
- keyboard. On older models of Sun keyboards, the &#x2018;STOP&#x2019; key is
- labeled &#x2018;L1&#x2019;.</p>
-<p class="Pp">If the console is a serial port the same is achieved by sending a
- &#x2018;BREAK&#x2019;.</p>
-<p class="Pp">If you do this accidentally, you can continue whatever was in
- progress with the <code class="Ic">go</code> command.</p>
-</section>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="BOOT_DEVICES"><a class="permalink" href="#BOOT_DEVICES">BOOT
- DEVICES</a></h1>
-<p class="Pp">Since machines vary greatly in the way their devices are
- connected, there are aliases defined by the firmware. You can either use the
- fully qualified Open Firmware path of a device node, or the alias.</p>
-<p class="Pp">The secondary boot loader, <code class="Nm">ofwboot</code>, takes
- <code class="Nm">boot</code> commands virtually the same as Open Firmware.
- Thus, the following examples apply equally to
- <code class="Nm">ofwboot</code> as well as Open Firmware.</p>
-<p class="Pp">A typical list of usable boot devices (extracted from the output
- of the Open Firmware command <code class="Ic">devalias</code>) is:</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>net /sbus/SUNW,hme@e,8c00000
-disk /sbus/SUNW,fas@e,8800000/sd@0,0
-cdrom /sbus/SUNW,fas@e,8800000/sd@6,0:f
-disk6 /sbus/SUNW,fas@e,8800000/sd@6,0
-disk5 /sbus/SUNW,fas@e,8800000/sd@5,0
-disk4 /sbus/SUNW,fas@e,8800000/sd@4,0
-disk3 /sbus/SUNW,fas@e,8800000/sd@3,0
-disk2 /sbus/SUNW,fas@e,8800000/sd@2,0
-disk1 /sbus/SUNW,fas@e,8800000/sd@1,0
-disk0 /sbus/SUNW,fas@e,8800000/sd@0,0</pre>
-</div>
-<p class="Pp" id="cdrom">If a device specification includes a partition letter
- (for example <a class="permalink" href="#cdrom"><i class="Em">cdrom</i></a>
- in above list), that partition is used by default, otherwise the first (a)
- partition is used. If booting from the net device, there is no partition
- involved.</p>
-<p class="Pp">The boot device is an optional first part of the boot string, if
- no device is specified the default device is used (see below).</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="FIRMWARE_ENVIRONMENT_VARIABLES"><a class="permalink" href="#FIRMWARE_ENVIRONMENT_VARIABLES">FIRMWARE
- ENVIRONMENT VARIABLES</a></h1>
-<p class="Pp">All Open Firmware environment variables can be printed with the
- <code class="Ic">printenv</code> command and changed with the
- <code class="Ic">setenv</code> command. The boot process relevant variables
- and their suggested value for booting <span class="Ux">NetBSD</span>
- are:</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>boot-command boot
-auto-boot? true
-boot-file
-boot-device disk
-diag-switch? false</pre>
-</div>
-<p class="Pp" id="disk">Of course you may select any other boot device, if you
- do not want to boot from the device aliased to
- <a class="permalink" href="#disk"><i class="Em">disk</i></a>, see the
- discussion on devices above.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="FILES"><a class="permalink" href="#FILES">FILES</a></h1>
-<dl class="Bl-tag Bl-compact">
- <dt><span class="Pa">/netbsd</span></dt>
- <dd>system code</dd>
- <dt><span class="Pa">/ofwboot</span></dt>
- <dd>system bootstrap</dd>
- <dt><span class="Pa">/usr/mdec/ofwboot.net</span></dt>
- <dd>alternate bootstrap when booting from the network, see
- <a class="Xr">diskless(8)</a> for details.</dd>
-</dl>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="EXAMPLES"><a class="permalink" href="#EXAMPLES">EXAMPLES</a></h1>
-<p class="Pp">Boot from CD-ROM:</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>boot cdrom</pre>
-</div>
-<p class="Pp">Note that some multi-architecture CDs are not able to use the
- default sparc64 partition for CD-ROMs (f), so they may require an explicit
- partition letter, for example</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>boot cdrom:c</pre>
-</div>
-<p class="Pp">When using external SCSI CD-ROM drives it is important to know two
- things: the Sun firmware expects the SCSI ID to be six, and the drive must
- support 512-byte block reads, in addition to the standard 2048-byte
- reads.</p>
-<p class="Pp">Use</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>boot net -sd</pre>
-</div>
-<p class="Pp">to boot single user from network and break into the kernel
- debugger as soon as possible.</p>
-<p class="Pp">Use</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>boot net tftp:netbsd -a</pre>
-</div>
-<p class="Pp">to boot a kernel named netbsd obtained via tftp and have it ask
- for root file system, swap partition and init location once it is up.</p>
-<p class="Pp">During installation from a different operating system</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>boot disk:b</pre>
-</div>
-<p class="Pp">is used to boot a &#x201C;miniroot&#x201D; file system from the
- swap partition.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
- ALSO</a></h1>
-<p class="Pp"><a class="Xr">disklabel(8)</a>, <a class="Xr">diskless(8)</a>,
- <a class="Xr">fsck(8)</a>, <a class="Xr">halt(8)</a>,
- <a class="Xr">init(8)</a>, <a class="Xr">installboot(8)</a>,
- <a class="Xr">rc(8)</a>, <a class="Xr">shutdown(8)</a>,
- <a class="Xr">sparc/boot(8)</a>, <a class="Xr">syslogd(8)</a></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="STANDARDS"><a class="permalink" href="#STANDARDS">STANDARDS</a></h1>
-<p class="Pp">Sun developed its firmware and promoted it to become
- <span class="St">IEEE Std 1275-1994 (&#x201C;Open
- Firmware&#x201D;)</span>.</p>
-<p class="Pp"><a class="Lk" href="http://www.openfirmware.org/1275/">IEEE 1275
- Open Firmware</a></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
-<p class="Pp"><span class="Ux">NetBSD</span> provides no way to boot UltraSPARC
- systems from floppy disks. This is unlikely to change, due to very low
- demand for this feature.</p>
-<p class="Pp">The OBP on Ultra 1 and Ultra 2 machines can only boot from the
- first 4Gb of the disk.</p>
-</section>
-</div>
-<table class="foot">
- <tr>
- <td class="foot-date">November 9, 2008</td>
- <td class="foot-os">NetBSD 10.1</td>
- </tr>
-</table>