102 lines
3.5 KiB
Plaintext
102 lines
3.5 KiB
Plaintext
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=head1 NAME
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B<imgcapture> - Captures an image from one running diskful Linux node, prepares the rootimg directory, kernel and initial ramdisks for the B<liteimg>/B<packimage> command to generate the statelite/stateless rootimg.
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=head1 SYNOPSIS
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B<imgcapture> node [B<-p>|B<--profile> I<profile>] [B<-i> I<nodebootif>] [B<-n> I<nodenetdrivers>] [B<-V>|B<--verbose>]
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B<imgcapture> [B<-h> | B<--help>] | [B<-v> | B<--version>]
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=head1 DESCRIPTION
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The B<imgcapture> command will capture an image from one running diskful Linux node, prepares the rootimg directory, kernel and initial rmadisks for the B<liteimg>/B<packimage> command to generate the statelite/stateless rootimg.
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The B<node> should be one diskful Linux node, managed by the xCAT MN, and the remote shell between MN and the B<node> should have been configured. AIX is not supported.
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The B<osver>, B<arch> and B<profile> attributes for the stateless/statelite image to be created are duplicated from the B<node>'s attribute. If the B<-p|--profile> I<profile> option is specified, the image will be created under "/<I<installroot>>/netboot/<osver>/<arch>/<I<profile>>/rootimg".
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The default files/directories excluded in the image are specified by /opt/xcat/share/xcat/netboot/<os>/<I<profile>>.<osver>.<arch>.imgcapture.exlist; also, you can put your customized file (<I<profile>>.<osver>.<arch>.imgcapture.exlist) to /install/custom/netboot/<osplatform>. The directories in the default I<.imgcapture.exlist> file are necessary to capture image from the diskful Linux node managed by xCAT, please don't remove it.
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The image captured will be extracted into the /<I<installroot>>/netboot/<B<osver>>/<B<arch>>/<B<profile>>/rootimg directory.
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After the B<imgcapture> command returns without any errors, you can customize the rootimg and run the B<liteimg>/B<packimage> command for your own request.
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=head1 OPTIONS
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=over 12
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=item B<-p|--profile> I<profile>
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assign I<profile> as the profile of the image to be created.
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=item B<-i> I<nodebootif>
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The network interface the diskless node will boot over (e.g. eth0), which is used by the B<genimage> command to generate initial ramdisks.
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This is optional.
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=item B<-n> I<nodenetdrivers>
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The driver modules needed for the network interface, which is used by the B<genimage> command to generate initial ramdisks.
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This is optional. By default, the B<genimage> command can provide drivers for the following network interfaces:
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For x86 or x86_64 platform:
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tg3 bnx2 bnx2x e1000 e1000e igb m1x_en
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For ppc64 platform:
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e1000 e1000e igb ibmveth ehea
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For S390x:
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qdio ccwgroup
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If the network interface is not in the above list, you'd better specify the driver modules with this option.
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=item B<-h|--help>
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Display the usage message.
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=item B<-v|--version>
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Display the version.
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=item B<-V|--verbose>
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Verbose output.
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=back
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=head1 RETRUN VALUE
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0 The command completed sucessfully.
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1 An error has occurred.
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=head1 EXAMPLES
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B<node1> is one diskful Linux node, which is managed by xCAT.
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1. In order to create the image, run the following command:
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imgcapture node1
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2. In order to create the image with B<hpc> as profile, run the command:
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imgcapture node1 -p hpc
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3. Create the image: its profile is B<hpc>, and the network interface the diskless node will boot over is B<eth0>, the driver modules for this network interface is B<e1000e>.
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imgcapture node1 -p hpc -i eth0 -n e1000e
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=head1 FILES
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/opt/xcat/bin/imgcapture
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=head1 SEE ALSO
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L<genimage(1)|genimage.1>, L<imgimport(1)|imgimport.1>, L<imgexport(1)|imgexport.1>, L<packimage(1)|packimage.1>, L<liteimg(1)|liteimg.1>
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