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Patch to address wblock's comments.

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Approved by:  gjb (mentor)
This commit is contained in:
Dru Lavigne 2013-02-11 21:50:50 +00:00
parent 66e5b1b560
commit e24ade107c
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=40951
1 changed files with 20 additions and 19 deletions

39
en_US.ISO8859-1/books/handbook/geom/chapter.xml
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@ -316,13 +316,13 @@ Done.</screen>
used to replace the old single disk.</para>
<para>&man.gmirror.8; requires a kernel module,
<filename>geom_mirror.ko</filename>, either compiled into a
custom kernel or loaded at boot- or run-time. To manually
load the kernel module now:</para>
<filename>geom_mirror.ko</filename>, either built into the
kernel or loaded at boot- or run-time. Manually load the
kernel module now:</para>
<screen>&prompt.root; <userinput>gmirror load</userinput></screen>
<para>To create the mirror with the two new drives.</para>
<para>Create the mirror with the two new drives:</para>
<screen>&prompt.root; <userinput>gmirror label -v gm0 /dev/ada1 /dev/ada2</userinput></screen>
@ -336,8 +336,8 @@ Done.</screen>
split-filesystem layout, with partitions for
<filename>/</filename>, swap, <filename>/var</filename>,
<filename>/tmp</filename>, and <filename>/usr</filename>. A
single <filename>/</filename> and a swap partition will also
work.</para>
single <filename>/</filename> filesystem and a swap partition
will also work.</para>
<para>Partitions on the mirror do not have to be the same size
as those on the existing disk, but they must be large enough
@ -431,15 +431,15 @@ Done.</screen>
<sect2>
<title>Creating a Mirror with an Existing Drive</title>
<para>In this example, &os; has been installed on a single
disk, <devicename>ada0</devicename>. A new disk,
<para>In this example, &os; has already been installed on a
single disk, <devicename>ada0</devicename>. A new disk,
<devicename>ada1</devicename>, has been connected to the
system. A one-disk mirror will be created on the new disk,
the existing system copied onto it, and then the old disk will
be inserted into the mirror. This slightly complex procedure
is required because &man.gmirror.8; needs to put a 512-byte
block of metadata at the end of each disk, and the existing
<devicename>ada0</devicename> usually has all of its space
<devicename>ada0</devicename> has usually had all of its space
already allocated.</para>
<para>Load the &man.gmirror.8; kernel module:</para>
@ -463,8 +463,8 @@ Done.</screen>
<devicename>gzero.nop</devicename>, even if the new drive
(<devicename>ada1</devicename>) has more space. Note that the
<replaceable>1000204821504</replaceable> in the second line
should be equal to the size of <devicename>ada0</devicename>
as shown by &man.diskinfo.8;.</para>
should be equal to <devicename>ada0</devicename>'s media size
as shown by &man.diskinfo.8; above.</para>
<screen>&prompt.root; <userinput>geom zero load</userinput>
&prompt.root; <userinput>gnop create -s 1000204821504 gzero</userinput>
@ -501,7 +501,7 @@ Done.</screen>
be explained later.</para>
<para>In either case, partition tables on the primary disk
should be copied first using the &man.gpart.8;
should be copied first with the &man.gpart.8;
<command>backup</command> and <command>restore</command>
subcommands.</para>
@ -526,11 +526,12 @@ BSD 8
6 freebsd-ufs 130023424 838860800
7 freebsd-ufs 968884224 984640881</screen>
<para>If the whole disk shows as used in the output of
<command>gpart show</command>, the capacity in these partition
tables must be reduced by one sector. Edit the two files,
reducing the size of both the slice and last partition by one.
These are the last numbers in each listing.</para>
<para>If the output of <command>gpart show</command> shows no
free space at the end of the disk, the size of both the slice
and the last partition must be reduced by one sector. Edit
the two files, reducing the size of both the slice and last
partition by one. These are the last numbers in each
listing.</para>
<screen>&prompt.root; <userinput>cat table.ada0</userinput>
MBR 4
@ -706,7 +707,7 @@ mirror/gm0 COMPLETE ada1 (ACTIVE)
<para>BIOS settings may have to be changed to boot from one
of the new mirrored drives. Either mirror drive can be
used for booting as they contain identical data.</para>
used for booting, as they contain identical data.</para>
</sect4>
<sect4>
@ -764,7 +765,7 @@ mountroot&gt;</screen>
incorrect. Press the Enter key at the prompt. Undo the
modifications so far by reverting
<filename>/etc/fstab</filename>, mounting filesystems from
the original <devicename>ada0</devicename> instead
the original disk (<devicename>ada0</devicename>) instead
of the mirror. Reboot the system and try the procedure
again.</para>