svn commit: r40908 - head/en_US.ISO8859-1/books/faq
Eitan Adler
eadler at FreeBSD.org
Fri Feb 8 00:22:41 UTC 2013
Author: eadler
Date: Fri Feb 8 00:22:40 2013
New Revision: 40908
URL: http://svnweb.freebsd.org/changeset/doc/40908
Log:
Remove out of date question
Noted by: scottl
Approved by: bcr (mentor, implicit)
Modified:
head/en_US.ISO8859-1/books/faq/book.xml
Modified: head/en_US.ISO8859-1/books/faq/book.xml
==============================================================================
--- head/en_US.ISO8859-1/books/faq/book.xml Thu Feb 7 18:02:01 2013 (r40907)
+++ head/en_US.ISO8859-1/books/faq/book.xml Fri Feb 8 00:22:40 2013 (r40908)
@@ -1421,66 +1421,6 @@
</qandaentry>
<qandaentry>
- <question id="panic-on-install-reboot">
- <para>Why do I get a <errorname>panic: can't mount
- root</errorname> error when rebooting the system after
- installation?</para>
- </question>
-
- <answer>
- <para>This error comes from confusion between the boot block's
- and the kernel's understanding of the disk devices. The
- error usually manifests on two-disk IDE systems, with the
- hard disks arranged as the master or single device on
- separate IDE controllers, with &os; installed on the
- secondary IDE controller. The boot blocks think the system
- is installed on <devicename>ad0</devicename> (the second
- BIOS disk) while the kernel assigns the first disk on the
- secondary controller device, <devicename>ad2</devicename>.
- After the device probing, the kernel tries to mount what the
- boot blocks think is the boot disk,
- <devicename>ad0</devicename>, while it is really
- <devicename>ad2</devicename>, and fails.</para>
-
- <para>To fix the problem, do one of the following:</para>
-
- <orderedlist>
- <listitem>
- <para>Reboot the system and hit <keycap>Enter</keycap> at
- the <literal>Booting kernel in 10 seconds; hit [Enter]
- to interrupt</literal> prompt. This will drop you into
- the boot loader.</para>
-
- <para>Then type
- <userinput>set root_disk_unit="<replaceable>disk_number</replaceable>"</userinput>.
- <replaceable>disk_number</replaceable> will be
- <literal>0</literal> if &os; is installed on the master
- drive on the first IDE controller, <literal>1</literal>
- if it is installed on the slave on the first IDE
- controller, <literal>2</literal> if it is installed on
- the master of the second IDE controller, and
- <literal>3</literal> if it is installed on the slave of
- the second IDE controller.</para>
-
- <para>Then type <userinput>boot</userinput>, and your
- system should boot correctly.</para>
-
- <para>To make this change permanent (i.e, so you do not
- have to do this every time you reboot or turn on your
- &os; machine), put the line
- <userinput>root_disk_unit="<replaceable>disk_number</replaceable>"</userinput>
- in <filename>/boot/loader.conf.local</filename>.</para>
- </listitem>
-
- <listitem>
- <para>Move the &os; disk onto the primary IDE
- controller, so the hard disks are consecutive.</para>
- </listitem>
- </orderedlist>
- </answer>
- </qandaentry>
-
- <qandaentry>
<question id="memory-limits">
<para>What are the limits for memory?</para>
</question>
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