1003 lines
16 KiB
HTML
1003 lines
16 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<HTML
|
|
><HEAD
|
|
><TITLE
|
|
>Converting a root filesystem to
|
|
LVM 1</TITLE
|
|
><META
|
|
NAME="GENERATOR"
|
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
|
|
REL="HOME"
|
|
TITLE="LVM HOWTO"
|
|
HREF="index.html"><LINK
|
|
REL="UP"
|
|
TITLE="Recipes"
|
|
HREF="recipes.html"><LINK
|
|
REL="PREVIOUS"
|
|
TITLE="Splitting a volume group"
|
|
HREF="recipesplitvg.html"><LINK
|
|
REL="NEXT"
|
|
TITLE="Recover physical volume metadata"
|
|
HREF="recovermetadata.html"></HEAD
|
|
><BODY
|
|
CLASS="sect1"
|
|
BGCOLOR="#FFFFFF"
|
|
TEXT="#000000"
|
|
LINK="#0000FF"
|
|
VLINK="#840084"
|
|
ALINK="#0000FF"
|
|
><DIV
|
|
CLASS="NAVHEADER"
|
|
><TABLE
|
|
SUMMARY="Header navigation table"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TH
|
|
COLSPAN="3"
|
|
ALIGN="center"
|
|
>LVM HOWTO</TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="left"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="recipesplitvg.html"
|
|
ACCESSKEY="P"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="80%"
|
|
ALIGN="center"
|
|
VALIGN="bottom"
|
|
>Chapter 13. Recipes</TD
|
|
><TD
|
|
WIDTH="10%"
|
|
ALIGN="right"
|
|
VALIGN="bottom"
|
|
><A
|
|
HREF="recovermetadata.html"
|
|
ACCESSKEY="N"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"></DIV
|
|
><DIV
|
|
CLASS="sect1"
|
|
><H1
|
|
CLASS="sect1"
|
|
><A
|
|
NAME="UpgradeRootToLVM"
|
|
></A
|
|
>13.8. Converting a root filesystem to
|
|
LVM 1</H1
|
|
><DIV
|
|
CLASS="caution"
|
|
><P
|
|
></P
|
|
><TABLE
|
|
CLASS="caution"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="25"
|
|
ALIGN="CENTER"
|
|
VALIGN="TOP"
|
|
><IMG
|
|
SRC="../images/caution.gif"
|
|
HSPACE="5"
|
|
ALT="Caution"></TD
|
|
><TH
|
|
ALIGN="LEFT"
|
|
VALIGN="CENTER"
|
|
><B
|
|
>Backup Your System</B
|
|
></TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
> </TD
|
|
><TD
|
|
ALIGN="LEFT"
|
|
VALIGN="TOP"
|
|
><P
|
|
> It is strongly recommended that you take a full backup of your
|
|
system before attempting to convert to root on LVM 1.
|
|
</P
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
><DIV
|
|
CLASS="warning"
|
|
><P
|
|
></P
|
|
><TABLE
|
|
CLASS="warning"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="25"
|
|
ALIGN="CENTER"
|
|
VALIGN="TOP"
|
|
><IMG
|
|
SRC="../images/warning.gif"
|
|
HSPACE="5"
|
|
ALT="Warning"></TD
|
|
><TH
|
|
ALIGN="LEFT"
|
|
VALIGN="CENTER"
|
|
><B
|
|
>Upgrade Complications</B
|
|
></TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
> </TD
|
|
><TD
|
|
ALIGN="LEFT"
|
|
VALIGN="TOP"
|
|
><P
|
|
> Having your root filesystem on LVM 1 can significantly complicate
|
|
upgrade procedures (depending on your distribution) so it should
|
|
not be attempted lightly. Particularly, you must consider how
|
|
you will insure that the LVM 1 kernel module (if you do not have
|
|
LVM 1 compiled into the kernel) as well as the vgscan/vgchange
|
|
tools are available before, during, and after the upgrade.
|
|
</P
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
><DIV
|
|
CLASS="warning"
|
|
><P
|
|
></P
|
|
><TABLE
|
|
CLASS="warning"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="25"
|
|
ALIGN="CENTER"
|
|
VALIGN="TOP"
|
|
><IMG
|
|
SRC="../images/warning.gif"
|
|
HSPACE="5"
|
|
ALT="Warning"></TD
|
|
><TH
|
|
ALIGN="LEFT"
|
|
VALIGN="CENTER"
|
|
><B
|
|
>Recovery Complications</B
|
|
></TH
|
|
></TR
|
|
><TR
|
|
><TD
|
|
> </TD
|
|
><TD
|
|
ALIGN="LEFT"
|
|
VALIGN="TOP"
|
|
><P
|
|
> Having your root filesystem on LVM 1 can significantly complicate
|
|
recovery of damaged filesystems. If you lose your initrd, it
|
|
will be very difficult to boot your system. You will need to
|
|
have a recover disk that contains the kernel, LVM 1 module, and
|
|
LVM 1 tools, as well as any tools necessary to recover a
|
|
damaged filesystem.
|
|
Be sure to make regular backups and have an up-to-date
|
|
alternative boot method that allows for recovery of LVM 1.
|
|
|
|
</P
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
><P
|
|
> In this example the whole system was installed in a single root
|
|
partition with the exception of /boot. The system had a 2 gig disk
|
|
partitioned as:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> /dev/hda1 /boot
|
|
/dev/hda2 swap
|
|
/dev/hda3 /
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
><P
|
|
> The / partition covered all of the disk not used by /boot and swap.
|
|
An important prerequisite of this procedure is that the root
|
|
partition is less that half full (so that a copy of it can be
|
|
created in a logical volume). If this is not the case then a
|
|
second disk drive should be used. The procedure in that case is
|
|
similar but there is no need to shrink the existing root partition
|
|
and /dev/hda4 should be replaced with (eg) /dev/hdb1 in the
|
|
examples.
|
|
</P
|
|
><P
|
|
> To do this it is easiest to use GNU parted. This software allows
|
|
you to grow and shrink partitions that contain filesystems. It is
|
|
possible to use resize2fs and fdisk to do this but GNU parted makes
|
|
it much less prone to error. It may be included in your
|
|
distribution, if not you can download it from
|
|
<A
|
|
HREF="ftp://ftp.gnu.org/pub/gnu/parted"
|
|
TARGET="_top"
|
|
>ftp://ftp.gnu.org/pub/gnu/parted</A
|
|
>.
|
|
</P
|
|
><P
|
|
> Once you have parted on your system AND YOU HAVE BACKED THE SYSTEM
|
|
UP:
|
|
</P
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1436"
|
|
></A
|
|
>13.8.1. Boot single user</H2
|
|
><P
|
|
> Boot into single user mode (type <B
|
|
CLASS="command"
|
|
>linux S</B
|
|
> at
|
|
the LILO prompt) This is important. Booting single-user ensures
|
|
that the root filesystem is mounted read-only and no programs
|
|
are accessing the disk.
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1440"
|
|
></A
|
|
>13.8.2. Run Parted</H2
|
|
><P
|
|
> Run parted to shrink the root partition Do this so there is room
|
|
on the disk for a complete copy of it in a logical volume. In
|
|
this example a 1.8 gig partition is shrunk to 1 gigabyte
|
|
This displays the sizes and names of the partitions on the disk
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># parted /dev/hda</B
|
|
>
|
|
<TT
|
|
CLASS="prompt"
|
|
>(parted)</TT
|
|
> p
|
|
.
|
|
.
|
|
.
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
><P
|
|
> Now resize the partition:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <TT
|
|
CLASS="prompt"
|
|
>(parted)</TT
|
|
> resize 3 145 999
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
The first number here the partition number (hda3), the second is
|
|
the same starting position that hda3 currently has. Do not
|
|
change this. The last number should make the partition around
|
|
half the size it currently is.
|
|
</P
|
|
><P
|
|
> Create a new partition
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <TT
|
|
CLASS="prompt"
|
|
>(parted)</TT
|
|
> mkpart primary ext2 1000 1999
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
This makes a new partition to hold the initial LVM 1 data. It
|
|
should start just beyond the newly shrunk hda3 and finish at the
|
|
end of the disk.
|
|
</P
|
|
><P
|
|
> Quit parted
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <TT
|
|
CLASS="prompt"
|
|
>(parted)</TT
|
|
> q
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1455"
|
|
></A
|
|
>13.8.3. Reboot</H2
|
|
><P
|
|
> Reboot the system
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1458"
|
|
></A
|
|
>13.8.4. Verify kernel config options</H2
|
|
><P
|
|
> Make sure that the kernel you are currently running works with
|
|
LVM 1 and has CONFIG_BLK_DEV_RAM and CONFIG_BLK_DEV_INITRD set in
|
|
the config file.
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1461"
|
|
></A
|
|
>13.8.5. Adjust partition type</H2
|
|
><P
|
|
> Change the partition type on the newly created partition from
|
|
Linux to LVM (8e). Parted doesn't understand LVM 1 partitions so
|
|
this has to be done using fdisk.
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># fdisk /dev/hda</B
|
|
>
|
|
<TT
|
|
CLASS="prompt"
|
|
>Command (m for help): </TT
|
|
>t
|
|
<TT
|
|
CLASS="prompt"
|
|
>Partition number (1-4): </TT
|
|
>4
|
|
<TT
|
|
CLASS="prompt"
|
|
>Hex code (type L to list codes): </TT
|
|
>8e
|
|
<TT
|
|
CLASS="computeroutput"
|
|
>Changed system type of partition 4 to 8e (Unknown)</TT
|
|
>
|
|
<TT
|
|
CLASS="prompt"
|
|
>Command (m for help): </TT
|
|
>w
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1471"
|
|
></A
|
|
>13.8.6. Set up LVM 1 for the new scheme</H2
|
|
><P
|
|
></P
|
|
><UL
|
|
><LI
|
|
><P
|
|
> Initialize LVM 1 (vgscan)
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># vgscan</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
> Make the new partition into a PV
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># pvcreate /dev/hda4</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
> create a new volume group
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># vgcreate vg /dev/hda4</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></LI
|
|
><LI
|
|
><P
|
|
>
|
|
Create a logical volume to hold the new root.
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># lvcreate -L250M -n root vg</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></LI
|
|
></UL
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1490"
|
|
></A
|
|
>13.8.7. Create the Filesystem</H2
|
|
><P
|
|
> Make a filesystem in the logical volume and copy the root files
|
|
onto it.
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># mke2fs /dev/vg/root
|
|
# mount /dev/vg/root /mnt/
|
|
# find / -xdev | cpio -pvmd /mnt</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1495"
|
|
></A
|
|
>13.8.8. Update /etc/fstab</H2
|
|
><P
|
|
> Edit /mnt/etc/fstab on the new root so that / is mounted on
|
|
/dev/vg/root. For example:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> /dev/hda3 / ext2 defaults 1 1
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
becomes:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> /dev/vg/root / ext2 defaults 1 1
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1500"
|
|
></A
|
|
>13.8.9. Create an LVM 1 initial RAM disk</H2
|
|
><TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># lvmcreate_initrd</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
><P
|
|
> Make sure you note the name that lvmcreate_initrd calls the
|
|
initrd image. It should be in /boot.
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1505"
|
|
></A
|
|
>13.8.10. Update /etc/lilo.conf</H2
|
|
><P
|
|
> Add an entry in /etc/lilo.conf for LVM 1.
|
|
This should look similar to the following:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> image = /boot/KERNEL_IMAGE_NAME
|
|
label = lvm
|
|
root = /dev/vg/root
|
|
initrd = /boot/INITRD_IMAGE_NAME
|
|
ramdisk = 8192
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
Where KERNEL_IMAGE_NAME is the name of your LVM 1 enabled kernel,
|
|
and INITRD_IMAGE_NAME is the name of the initrd image created by
|
|
lvmcreate_initrd. The ramdisk line may need to be increased if
|
|
you have a large LVM 1 configuration, but 8192 should suffice for
|
|
most users. The default ramdisk size is 4096. If in doubt check
|
|
the output from the lvmcreate_initrd command, the line that
|
|
says:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> lvmcreate_initrd -- making loopback file (6189 kB)
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
and make the ramdisk the size given in brackets.
|
|
</P
|
|
><P
|
|
> You should copy this new lilo.conf onto /etc in the new root fs
|
|
as well.
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># cp /etc/lilo.conf /mnt/etc/</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1513"
|
|
></A
|
|
>13.8.11. Run LILO to write the new boot sector</H2
|
|
><TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># lilo</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1517"
|
|
></A
|
|
>13.8.12. Reboot to lvm</H2
|
|
><P
|
|
>
|
|
Reboot - at the LILO prompt type "lvm"
|
|
The system should reboot into Linux using the newly created
|
|
Logical Volume.
|
|
</P
|
|
><P
|
|
> If that worked then you should make lvm the default LILO boot
|
|
destination by adding the line
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> default=lvm
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
in the first section of /etc/lilo.conf
|
|
</P
|
|
><P
|
|
> If it did not work then reboot normally and try to diagnose the
|
|
problem. It could be a typing error in lilo.conf or LVM 1 not
|
|
being available in the initial RAM disk or its kernel. Examine
|
|
the message produced at boot time carefully.
|
|
</P
|
|
></DIV
|
|
><DIV
|
|
CLASS="sect2"
|
|
><H2
|
|
CLASS="sect2"
|
|
><A
|
|
NAME="AEN1523"
|
|
></A
|
|
>13.8.13. Add remainder of disk</H2
|
|
><P
|
|
>
|
|
Add the rest of the disk into LVM 1. When you are happy with this
|
|
setup you can then add the old root partition to LVM 1 and spread
|
|
out over the disk.
|
|
</P
|
|
><P
|
|
> First set the partition type to 8e(LVM)
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># fdisk /dev/hda</B
|
|
>
|
|
|
|
<TT
|
|
CLASS="prompt"
|
|
>Command (m for help): </TT
|
|
>t
|
|
<TT
|
|
CLASS="prompt"
|
|
>Partition number (1-4): </TT
|
|
>3
|
|
<TT
|
|
CLASS="prompt"
|
|
>Hex code (type L to list codes): </TT
|
|
>8e
|
|
<TT
|
|
CLASS="computeroutput"
|
|
>Changed system type of partition 3 to 8e (Unknown)</TT
|
|
>
|
|
<TT
|
|
CLASS="prompt"
|
|
>Command (m for help): </TT
|
|
>w
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
><P
|
|
> Convert it into a PV and add it to the volume group:
|
|
<TABLE
|
|
BORDER="0"
|
|
BGCOLOR="#E0E0E0"
|
|
WIDTH="100%"
|
|
><TR
|
|
><TD
|
|
><FONT
|
|
COLOR="#000000"
|
|
><PRE
|
|
CLASS="screen"
|
|
> <B
|
|
CLASS="command"
|
|
># pvcreate /dev/hda3
|
|
# vgextend vg /dev/hda3</B
|
|
>
|
|
</PRE
|
|
></FONT
|
|
></TD
|
|
></TR
|
|
></TABLE
|
|
>
|
|
</P
|
|
></DIV
|
|
></DIV
|
|
><DIV
|
|
CLASS="NAVFOOTER"
|
|
><HR
|
|
ALIGN="LEFT"
|
|
WIDTH="100%"><TABLE
|
|
SUMMARY="Footer navigation table"
|
|
WIDTH="100%"
|
|
BORDER="0"
|
|
CELLPADDING="0"
|
|
CELLSPACING="0"
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="recipesplitvg.html"
|
|
ACCESSKEY="P"
|
|
>Prev</A
|
|
></TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="index.html"
|
|
ACCESSKEY="H"
|
|
>Home</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="recovermetadata.html"
|
|
ACCESSKEY="N"
|
|
>Next</A
|
|
></TD
|
|
></TR
|
|
><TR
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="left"
|
|
VALIGN="top"
|
|
>Splitting a volume group</TD
|
|
><TD
|
|
WIDTH="34%"
|
|
ALIGN="center"
|
|
VALIGN="top"
|
|
><A
|
|
HREF="recipes.html"
|
|
ACCESSKEY="U"
|
|
>Up</A
|
|
></TD
|
|
><TD
|
|
WIDTH="33%"
|
|
ALIGN="right"
|
|
VALIGN="top"
|
|
>Recover physical volume metadata</TD
|
|
></TR
|
|
></TABLE
|
|
></DIV
|
|
></BODY
|
|
></HTML
|
|
> |