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sanboot:centos_iscsi_install [2008/02/20 15:42] mcb30 |
sanboot:centos_iscsi_install [2008/02/20 16:08] (current) mcb30 |
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====== Installing CentOS to an iSCSI target ====== | ====== Installing CentOS to an iSCSI target ====== | ||
- | The CentOS installation process is somewhat fragile, and the built-in support for iSCSI installation does not function properly except in very limited circumstances. However, it is possible to work around this limitation and install to an iSCSI target. | + | The CentOS installation process is somewhat fragile, and the built-in support for iSCSI installation does not function properly (except in very limited circumstances). However, it is possible to work around this limitation and install to an iSCSI target. |
===== Starting the installation ===== | ===== Starting the installation ===== | ||
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You will see the message "Initializing iSCSI initiator" appear for several seconds, then the display will return to the partitioning screen. | You will see the message "Initializing iSCSI initiator" appear for several seconds, then the display will return to the partitioning screen. | ||
+ | |||
+ | ===== Connecting to the iSCSI target ===== | ||
{{ screenshots:centos_iscsi_install_connect.png?320x200|CentOS iSCSI installation connection to disk}} | {{ screenshots:centos_iscsi_install_connect.png?320x200|CentOS iSCSI installation connection to disk}} | ||
- | |||
- | ===== Connecting to the iSCSI target ===== | ||
Press //Ctrl-Alt-F2//. This should take you to a root shell prompt. Connect to the iSCSI target to be used for installation: | Press //Ctrl-Alt-F2//. This should take you to a root shell prompt. Connect to the iSCSI target to be used for installation: | ||
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===== Completing the installation ===== | ===== Completing the installation ===== | ||
- | Press //Ctrl-Alt-F6// to return to the graphical installation process, and click on //Next// to proceed to the disk selection screen: | + | Press //Ctrl-Alt-F6// to return to the graphical installation process. Click on //Back//. This will cause the installer to rescan for disks, and the iSCSI target should now show up in the list of available disks: |
- | + | ||
- | {{screenshots:centos_iscsi_install_select_drive.png?400x300|CentOS iSCSI installation disk selection}} | + | |
- | + | ||
- | You must tick the "Review and modify partitioning layout" box before proceeding to the disk partitioning screen: | + | |
- | {{screenshots:centos_iscsi_install_remove_swap.png?400x300|CentOS iSCSI installation swap removal}} | + | {{ screenshots:centos_iscsi_install_partitioning_recap.png?400x300 |CentOS partitioning screen}} |
- | Select and delete the swap partition. This is required for two reasons: firstly, swap over iSCSI (or over any network device) is generally a bad idea; secondly, doing so works around a bug in the CentOS installer which would otherwise result in the partition table never being written to disk. | + | Continue with the rest of the installation as usual. |
Make a note of the iSCSI target IQN that you installed to (//iqn.2007-08.name.dns.target.my:iscsiboot// in the above example). You are now ready to | Make a note of the iSCSI target IQN that you installed to (//iqn.2007-08.name.dns.target.my:iscsiboot// in the above example). You are now ready to |