New install of RHEL4 isn't creating /dev/sg* drivers for tape library
My RHEL3 system disk is about to byte the dust. This host is my backup system (EMC|Legato Networker), happily connected to a DELL PV-136T. All devices and applications work swimmingly.
Okay, so this is an opportunity to jump up to the next rev. Got a new disk and decided to install RHEL4 from CD distribution. That went nicely, except for one thing - the system does not "see" the tape library. It "sees" the tape devices, I can manipulate the devices with the "mt" command, but the /dev/sg* controller never gets created. lsmod for the SCSI interface shows:
# lsmod | grep aic
aic7xxx 148121 0
scsi_mod 121421 4 st,aic7xxx,libata,sd_mod
Looks like the modules are loaded... Okay, so I mknod some /dev/sg devices, but they disappear on reboot.
Before I start getting too worried, I put the old, limping RHEL3 system disk in there, and everything works nicely - I can see the tape library, and all is cool.
So, this isn't a hardware issue, it's an OS driver issue, right?
Any ideas or suggestions????