neysx 06/01/20 11:42:43 Modified: xml/htdocs/doc/en lvm2.xml Log: #116288 Do not activate swap until you're done with the partitioning, and a well needed refresh
Revision Changes Path 1.17 +43 -34 xml/htdocs/doc/en/lvm2.xml file : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/lvm2.xml?rev=1.17&content-type=text/x-cvsweb-markup&cvsroot=gentoo plain: http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/lvm2.xml?rev=1.17&content-type=text/plain&cvsroot=gentoo diff : http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/doc/en/lvm2.xml.diff?r1=1.16&r2=1.17&cvsroot=gentoo Index: lvm2.xml =================================================================== RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/lvm2.xml,v retrieving revision 1.16 retrieving revision 1.17 diff -u -r1.16 -r1.17 --- lvm2.xml 3 Oct 2005 22:49:15 -0000 1.16 +++ lvm2.xml 20 Jan 2006 11:42:43 -0000 1.17 @@ -1,8 +1,8 @@ <?xml version='1.0' encoding="UTF-8"?> -<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/lvm2.xml,v 1.16 2005/10/03 22:49:15 rane Exp $ --> +<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/lvm2.xml,v 1.17 2006/01/20 11:42:43 neysx Exp $ --> <!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> -<guide link = "/doc/en/lvm2.xml"> +<guide link="/doc/en/lvm2.xml"> <title>Gentoo LVM2 installation</title> <author title="Author"> @@ -24,8 +24,8 @@ <!-- See http://creativecommons.org/licenses/by-sa/2.5 --> <license/> -<version>2.0.11</version> -<date>2005-08-17</date> +<version>2.1</version> +<date>2006-01-20</date> <chapter> <title>Introduction</title> @@ -62,7 +62,7 @@ LVM2 support such as a Gentoo Installation CD. You can find the Installation CDs for an x86 architecture on our <uri link="/main/en/mirrors.xml">mirrors</uri> under -<path>/releases/x86/2005.1/installcd</path>. Other architectures might +<path>/releases/x86/2005.1-r1/installcd</path>. Other architectures might be supported as well. </p> @@ -134,21 +134,16 @@ </p> <p> -Create a small physical /boot partition (hda1). In this example, /boot will be -not managed by LVM2. This partition will contain your bootloader and your -kernel(s). A 64MB partition should be well enough for quite a few kernel -generations. +Create a small physical <path>/boot</path> partition (hda1). In this example, +<path>/boot</path> will be not managed by LVM2. This partition will contain +your bootloader and your kernel(s). A 64MB partition should be well enough for +quite a few kernel generations. </p> <p> -Create a swap partition (hda2) and activate it. +Create a swap partition (hda2). </p> -<pre caption="Activating the swap partition"> -# <i>mkswap /dev/hda2</i> -# <i>swapon /dev/hda2</i> -</pre> - <p> Create a / (root) partition (hda3). If you are interested in trying to put your root partition under LVM management (which we do not recommend), see the @@ -167,10 +162,10 @@ </note> <p> -Assuming the /boot, swap and root partitions do not use the whole physical disk, -create a fourth partition on this disk and set it to type 8e (Linux LVM). -If you have more physical drives you would like to use with LVM, create -one partition on each and give them the same type (8e). +Assuming the <path>/boot</path>, swap and root partitions do not use the whole +physical disk, create a fourth partition on this disk and set it to type 8e +(Linux LVM). If you have more physical drives you would like to use with LVM, +create one partition on each and give them the same type (8e). </p> <note> @@ -184,6 +179,12 @@ </note> <p> +Create the filesystems on <path>/dev/hda1</path> and <path>/dev/hda3</path>, +and create and activate the swap on <path>/dev/hda2</path> as described in the +handbook. +</p> + +<p> Load the LVM2 <path>dm-mod</path> module. </p> @@ -192,13 +193,22 @@ </pre> <p> -Scan and activate LVM: +Before scanning and activating LVM, you might want to edit +<path>/etc/lvm/lvm.conf</path> to exclude some devices. By default, LVM2 will +scan all devices, even your CDROM which can generate error messages. In the +following exemple, the line that allows scanning of all devices is replaced by +one that rejects every device but our two IDE disks. </p> <pre caption="Activating LVM"> -<comment>(Avoid scanning your cdrom)</comment> -# <i>mkdir -p /etc/lvm</i> -# <i>echo 'devices { filter=["r/cdrom/"] }' >/etc/lvm/lvm.conf</i> +<comment>(Avoid scanning all devices but our disks)</comment> +# <i>nano -w /etc/lvm/lvm.conf</i> +<comment>(Look for the following line)</comment> + filter = [ "a/.*/" ] +<comment>(Replace it with the following one to scan +/dev/hda and /dev/hdb and reject anything else)</comment> + filter = [ "a|/dev/hd[ab]|", "r/.*/" ] +<comment>(Save the file and quit nano)</comment> # <i>vgscan</i> Reading all physical volumes. This may take a while... No volume groups found @@ -389,16 +399,16 @@ <pre caption="Emerging the LVM2 package"> # <i>emerge lvm2</i> -<comment>(At the time of writing, the stable version is 2.00.08. -With version 2.00.08, prevent lvm2 from probing your cdrom by doing:</comment> -# <i>echo 'devices { filter=["r/cdrom/"] }' >> /etc/lvm/lvm.conf</i> - -<comment>(Versions 2.00.15 and later come with a /etc/lvm/lvm.conf -Edit your /etc/lvm/lvm.conf and follow the comments</comment> -# <i>nano -w /etc/lvm/lvm.conf</i> </pre> <p> +Edit <path>/etc/lvm/lvm.conf</path> as described <uri +link="#doc_chap2_pre2">earlier</uri>. The file you previously edited is part of +your installation environment and will disappear after the next reboot. This +time, you edit the real one inside your new Gentoo install. +</p> + +<p> When editing your <path>/etc/fstab</path> file, follow the handbook and add your LVM2 logical volumes as needed. Again, here are a few lines needed for our example: @@ -481,10 +491,9 @@ The <uri link="http://tldp.org/HOWTO/LVM-HOWTO";>LVM Howto</uri> </li> <li> - Daniel Robbins's articles on LVM at IBM's DeveloperWorks: - <uri>http://www-106.ibm.com/developerworks/linux/library/l-lvm/?dwzone=linux</uri> - and - <uri>http://www-106.ibm.com/developerworks/linux/library/l-lvm2.html?dwzone=linux</uri> + Daniel Robbins's articles on LVM for IBM's DeveloperWorks: <uri + link="/doc/en/articles/lvm-p1.xml">Part 1</uri> and <uri + link="/doc/en/articles/lvm-p2.xml">Part 2</uri> </li> <li> How to boot your root FS off of LVM1: -- [email protected] mailing list
