uBoot/index.htm at master · doozan/uBoot · GitHub

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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<meta name="description" content="Update uBoot on your Dockstar, GoFlex or Pogoplug NAS">
<meta name="keywords" content="uBoot,Dockstar,GoFlex,Pogoplug,Seagate">

<title>Update uBoot on your Dockstar, GoFlex, or Pogoplug NAS</title>

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<h2>Update uBoot on your Dockstar, GoFlex, or Pogoplug NAS</h2>

<p class="warn">Disclaimer: Flashing mtd0 carries a risk of breaking your device.</p>

<p>Remove any USB devices and reboot your device.  After connecting to it with SSH, run the following commands:</p>

<div class="code">cd /tmp
wget http://projects.doozan.com/uboot/install_uboot_mtd0.sh
chmod +x install_uboot_mtd0.sh
./install_uboot_mtd0.sh
</div>

<h4>Changes from the default uBoot</h4>
<ul>
  <li>Based on the latest uBoot source code.</li>
  <li>Support for booting from USB drives.</li>
  <li>Support for UBIFS partitions on NAND.</li>
  <li>Support for complex boot scripts using the HUSH shell.</li>
  <li>Configurable environment variables for customized boot commands.</li>
</ul>


<h2>Configuring the uBoot Environment</h2>

<p>The new uBoot supports two new command line tools for configuring the environment: <em>fw_printenv</em> and <em>fw_setenv</em>,
which work exactly like their internal <em>printenv</em> and <em>setenv</em> commands.</p>

<p>The script will install these utilities in /usr/bin in your Pogoplug environment:</p>
<div class="code">fw_printenv
fw_setenv &lt;param&gt; &lt;value&gt;
</div>


<h2>Compiling uBoot</h2>

<p>See my <a href="build_uboot.htm">notes on compiling uBoot</a> if you're interesting in building your own uBoot.</p>


<h2>Netconsole</h2>
<p>If you don't have a serial cable, you can still connect to uBoot using <a href="http://forum.doozan.com/read.php?3,14,14">netconsole.</a>

<h2>Forum</h2>
<p>Please visit the <a href="http://forum.doozan.com">forum</a> for additional uBoot information and support.</p>


<h2>Old: Install chained uBoot on mtd3</h2>

<p>This section is for reference only. You should probably install uBoot to mtd0 as described
above, unless you have a good reason not to.</p>
<p>This is the old 'chained' bootloader method.  Don't run this if you have already upgraded uBoot on mtd0.</p>

<p>Remove your USB drive, boot into the default Pogoplug environment, and run the following commands:</p>

<div class="code">cd /tmp
wget http://projects.doozan.com/uboot/install_uboot_mtd3.sh
chmod +x install_uboot_mtd3.sh
./install_uboot_mtd3.sh
</div>

<p>You can boot to the Pogoplug environment with the 'run bootcmd_pogo' command in the new uBoot.  By default, the new uBoot will attempt to boot from a USB drive
and, failing that, it will boot the original Pogoplug installation.</p>


<h2>Old: Restore old uBoot on mtd0</h2>

<p>This section is for reference only.  You should not run this unless you have a very good reason.</p>

<p>If, for some reason, you want to revert back to the original bootloader, you can use the following instructions to restore the original bootloader:</p>

<div class="code"># Restore original uBoot
wget http://download.doozan.com/uboot/files/uboot/uboot.mtd0.dockstar.original.kwb
flash_erase /dev/mtd0 0 4
nandwrite /dev/mtd0 uboot.mtd0.dockstar.original.kwb
</div>


<p>Enjoy!</p>

<p>-- Jeff</p>

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