[CentOS] udev rules for /dev/sg[a-z] ?

James Pearson james-p at moving-picture.com
Wed Aug 13 21:41:32 UTC 2008


John R Pierce wrote:
> James Pearson wrote:
>> I have a third party application that I want to run a CentOS4 box that 
>> is expecting to access the generic SCSI devices through /dev/sga, 
>> /dev/sgb, etc. However, the devices set up by udev are /dev/sg0, 
>> /dev/sg1 etc.
> 
> just curious, what sort of scsi controller is that?   every CentOS 4 
> system with regular SCSI (or SAS or whatever) that I've seen has created 
> /dev/sda /dev/sdb, etc...   only exceptions I've seen are are things 
> like Compaq/HP SmartArray controllers that use /dev/cciss/c0d0

Unfortunately, a typo crept into the subject line (which I've now 
changed) ...

I'm not talking about the block devices (/dev/sda etc) but the generic 
SCSI devices using the sg (sg.ko) module - which have /dev entries of 
/dev/sg0, /dev/sg1 etc.

James Pearson


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