To check autoloader/library detected or not, give command
[root@localhost ~]# cat /proc/scsi/scsi
If it is not show changer, Do following steps
Check the version of Redhat Linux
If it is Redhat Linux 3
Add following line in /etc/modules.conf
“options scsi_mod max_luns=255”
“options scsi_mod scsi_noreportlun=1”
If it is Redhat Linux 4
Add following line in /etc/modprobe.conf
“options scsi_mod max_luns=255”
“options scsi_mod scsi_noreportlun=1”
Then create new initrd file…..
[root@localhost ~]#cd /boot
Rename initrd file
[root@localhost ~]# mv initrd-`uname –r`.img initrd-`uname-r`.main
e.g. mv initrd-2.6.9-42.EL.img initrd-2.6.9-42.EL.main
[root@localhost ~]# mkinitrd initrd-`uname –r`.img `uname –r`
e.g. mkinitrd initrd-2.6.9-42.EL.img 2.6.9-42.EL
At the end REBOOT your Linux box.
-Thanks
Ravi
