en LUN larger than currently supported Problem:When booting on the 3ware controller under 64-bit Linux, the kernel reports many error messages on LUN:<pre>scsi: On host 0 channel 0 id 4 only 511 (max_scsi_report_luns) of 525795330 luns reported, </pre><pre>try increasing max_scsi_report_luns.</pre><pre>scsi: host 0 channel 0 id 4 lun 0xb0b800008ed88ec0 has a LUN larger than currently supported.</pre><pre>scsi: host 0 channel 0 id 4 lun 0xfbbe007cbf0006b9 has a LUN larger than currently supported.</pre><pre>scsi: host 0 channel 0 id 4 lun 0x0002f3a4ea210600 has a LUN larger than currently supported.</pre> <a href="http://www.3ware.com/KB/article.aspx?id=14831">http://www.3ware.com/KB/article.aspx?id=14831</a>Distributions Effected:<ul><li>Fedora Core 3, 4</li><li>RHEL 4 Update 2</li><li>CentOS 4.2</li><li>SuSE 9.3, 10</li></ul>Solution:For systems running SuSE Linux 9.3 and 10, append the kernel parameter 'scsi_mod.default_dev_flags=0x40000' to /etc/grub.conf.For systems running Fedora Core 3/4, RHEL4, CentOS 4.x, add the following line to /etc/modprobe.conf and create a new initial ramdisk afterward. options scsi_mod max_luns=128 default_dev_flags=0x40000To create a new initial ramdisk, run 'mkinitrd'. mkinitrd -v -f /boot/initrd-<kernel version>.img <kernel version>If the boot loader has multiple kernel entries, run mkinitrd multiple times for each kernel. For example:# mkinitrd -v -f /boot/initrd-2.6.9-22.ELsmp.img 2.6.9-22.ELsmp # mkinitrd -v -f /boot/initrd-2.6.9-22.EL.img 2.6.9-22.EL ASL 2006-03-15 16:33