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sanboot:win2k8_iscsi_install [2010/06/07 20:48] sha0 Fix pxelinux.0 typo |
sanboot:win2k8_iscsi_install [2011/01/22 12:16] (current) leeph [What to do if the installation can't find the iSCSI disk.] |
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| After some curious stuff enter torito and enter. Now it starts of your Windows 2008 DVD. | After some curious stuff enter torito and enter. Now it starts of your Windows 2008 DVD. | ||
| (May show error if dvd drive is not ready yet. Just try by pressing enter again and again) | (May show error if dvd drive is not ready yet. Just try by pressing enter again and again) | ||
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| + | This is might also work for you, without the PXE menu if you have no HD or boot PXE after your HD boot order | ||
| + | Kick off you machine, load some gPXE and press Ctrl+B as it appears. Now do: | ||
| + | |||
| + | <code> | ||
| + | dhcp net0 | ||
| + | set keep-san 1 | ||
| + | sanboot iscsi:192.168.1.11::::iqn.2007-08.name.dns.target.my:iscsiboot | ||
| + | exit | ||
| + | </code> | ||
| + | |||
| + | You should now have a message that says insert media and press a key. Insert your CD and wait a few seconds then press a key | ||
| ===== Completing the installation ===== | ===== Completing the installation ===== | ||
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| - To avoid this problem, you can set the gateway (received from the DHCP server) to the IP of the machine running Microsoft iSCSI Software Target. (or use the "set gateway" command from the gPXE console, after the "dhcp" command) | - To avoid this problem, you can set the gateway (received from the DHCP server) to the IP of the machine running Microsoft iSCSI Software Target. (or use the "set gateway" command from the gPXE console, after the "dhcp" command) | ||
| - | - Alternatively, you can install to another software target, and then [[transfer]] the installation to the Microsoft iSCSI Software Target. | + | - Another way around this is to configure your DHCP server to give the target host as the default gateway for the initial gPXE boot, and then give your normal gateway for the Windows boot proper. This avoids routing the SAN traffic through an IP router when it isn't necessary (in my case, my LAN is gigabit but routing through the gateway reduced effective throughput to 100mbit - not ideal!). Add the following lines to your dhcpd config (to the stanza that defines the host to be booted): |
| + | |||
| + | if exists user-class and option user-class = "gPXE" { | ||
| + | option routers <iSCSI target IP>; | ||
| + | } else { | ||
| + | option routers <normal default gateway IP>; | ||
| + | } | ||
| + | |||
| + | - Alternatively, you can install to another software target, and then [[transfer]] the installation to the Microsoft iSCSI Software Target. | ||
| ===== What to do if the installation says: "Ensure that the disk's controller is enabled in the computer's BIOS menu" ===== | ===== What to do if the installation says: "Ensure that the disk's controller is enabled in the computer's BIOS menu" ===== | ||
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| Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu | Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu | ||
| Solution for this error is quite simple, just add a drive for installation time, if the drive is a Serial-ATA connected then set it to //Compatibile Mode// not //AHCI// (for Windows 7 this doesn't matter, you can leave it as AHCI). If you start windows installer once again you will see an error message only at the physical drive, select iSCSI target and just click next. | Solution for this error is quite simple, just add a drive for installation time, if the drive is a Serial-ATA connected then set it to //Compatibile Mode// not //AHCI// (for Windows 7 this doesn't matter, you can leave it as AHCI). If you start windows installer once again you will see an error message only at the physical drive, select iSCSI target and just click next. | ||
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| + | XFGolden Begin Edit -> This is totally contradictory to the above. But it worked for me when the above did not. | ||
| + | |||
| + | In some cases such as mine using an asus m3n-HT Deluxe motherboard with the latest pheonix/award bios having Serial ATA mode set to IDE(compatibility mode) caused the Windows 7 Ultimate x86_64 installer to view the the iscsi connected drive as a non-bios boot drive. There are three options in this bios for how Serial ATA drives are handled IDE/AHCI/RAID . Once the access mode for Serial ATA drives was set to AHCI the Windows Installer saw the physically attached drive as non-bios bootable and the iSCSI attached drive as a valid install target. On subsequent boots the installer completed and I was presented with a freshly installed Windows 7 desktop served from my SAN. | ||
| + | |||
| + | <- End Edit XFGolden | ||
