mirror of
https://github.com/xcat2/xcat-core.git
synced 2025-10-30 02:42:41 +00:00
101 lines
3.1 KiB
Plaintext
101 lines
3.1 KiB
Plaintext
=head1 NAME
|
|
|
|
B<genimage> - Generate an initrd (initial ramfs) which to be used for statefull install or stateless netboot.
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
B<geninitrd> <imagename>
|
|
|
|
B<geninitrd> [B<-h> | B<--help>]
|
|
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
Generate the initrd for the osimage: B<imagename> which is an xCAT object of I<osimage> type.
|
|
|
|
B<Diskfull Osimage>
|
|
|
|
=over 2
|
|
|
|
If the B<imagename> is a statefull one (The provmethod attribute for the osimage is 'install'),
|
|
this command is used to rebuild the initrd to inject the new drivers from driver rpms or
|
|
'update distro' and copy the rebuilt initrd and new kernel (If there's new kernel in 'update
|
|
distro') to the directory I</tftpboot/xcat/<imagename>>.
|
|
|
|
If the initrd has been rebuilt by geninitrd, when run nodeset, the I<--noupdateinitrd> option
|
|
should be used to skip the rebuilding of initrd to improve the performance.
|
|
|
|
Three attributes of osimage object can be used to specify the Driver RPM location and Driver names
|
|
for injecting new drviers to initrd.
|
|
|
|
B<netdrivers> - comma separated driver names that need to be injected to the initrd.
|
|
The postfix '.ko' can be ignored. The netdrivers attribute must be set to specify the new driver list.
|
|
If you want to load all the drivers from the driver rpms, using the keyword allupdate.
|
|
|
|
B<driverupdatesrc> - comma separated driver rpm packages (full path should be specified)
|
|
|
|
B<osupdatename> - comma separated 'osdistroupdate' object. Each 'osdistroupdate' object specifies a
|
|
Linux distro update. When run geninitrd, 'kernel-*.rpm' will be searched from osdistroupdate.dirpath
|
|
to get all the rpm packages and then search the drivers from the rpm packages.
|
|
|
|
Refer to the doc: https://sourceforge.net/apps/mediawiki/xcat/index.php?title=Using_Linux_Driver_Update_Disk
|
|
|
|
=back
|
|
|
|
B<Stateless Osimage>
|
|
|
|
=over 2
|
|
|
|
If the B<imagename> is a stateless one (The provmethod attribute for the osimage is 'netboot'),
|
|
this command is used to generate the initrd from the rootimg which generated by 'genimage' command.
|
|
So the 'genimage' must be run once before running the geninitrd command.
|
|
|
|
Two attributes of osimage object can be used to specify the Driver RPM location and Driver names
|
|
for injecting new drviers to initrd.
|
|
|
|
B<netdrivers> - comma separated driver names that need to be injected to the initrd.
|
|
The postfix '.ko' can be ignored. The netdrivers attribute must be set to specify the new driver list.
|
|
If you want to load all the drivers from the driver rpms, using the keyword allupdate.
|
|
|
|
B<driverupdatesrc> - comma separated driver rpm packages (full path should be specified)
|
|
|
|
=back
|
|
|
|
|
|
=head1 Parameters
|
|
|
|
I<imagename> specifies the name of an os image definition to be used. The specification for the image is storted in the I<osimage> table and I<linuximage> table.
|
|
|
|
|
|
=head1 RETURN VALUE
|
|
|
|
0 The command completed successfully.
|
|
|
|
1 An error has occurred.
|
|
|
|
|
|
=head1 EXAMPLES
|
|
|
|
=over 3
|
|
|
|
=item 1
|
|
To generate initrd for the osimage B<myimagename>:
|
|
|
|
geninitrd myimagename
|
|
|
|
=back
|
|
|
|
|
|
=head1 FILES
|
|
|
|
/opt/xcat/bin/geninitrd
|
|
|
|
/opt/xcat/bin/genimage
|
|
|
|
/opt/xcat/share/xcat/netboot/<OS>/genimage
|
|
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<geninitrd(1)|geninitrd.1>, L<genimage(1)|genimage.1>
|