Bug 19413

Summary: Too few MCAM SCSI devices in /dev
Product: Base System Reporter: naoyuki_tai <naoyuki_tai>
Component: confAssignee: freebsd-bugs (Nobody) <bugs>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: 4.0-RELEASE   
Hardware: Any   
OS: Any   

Description naoyuki_tai 2000-06-21 17:50:00 UTC 
Standard installation creates four (4) MCAM devices in /dev. This is too few for some users.
(1) With no MCAM device node, apps report there is no H/W. Since this is SCSI, admins tend to think that there is something wrong with cabling.
(2) There is no obvious way to "fix" the problem. It took me a while to figure out why some apps are failing to see some SCSI devices.

Fix: 

run "cd /dev;sh ./MAKEDEV mcam4;sh ./MAKEDEV mcam5"

It would be really nice if sysinstall or start up rc scripts detect the number of scsi devices and create MCAM devices if missing in /dev
How-To-Repeat: Install 4.0-RELEASE. Add a SCSI card. Add 4 SCSI drives on ID=0 - 3. Add Tape drive on ID=5. Add CD-Writer driveon ID=6. Use cdrecord. cdrecord can not find the CD-Writer drive.
Comment 1 Poul-Henning Kamp freebsd_committer freebsd_triage 2001-06-02 09:55:02 UTC 
State Changed
From-To: open->closed

This problem represents the class of problems (selling rubber-band by 
the inch) which DEVFS is designed to solve conclusively.