Re: ub vs. ubd

[Pete Zaitcev]

On Fri, 17 Sep 2004 01:23:35 -0400
Jeff Dike <jdike@xxxxxxxxxxx> wrote:

> zaitcev@xxxxxxxxxx said:
> > Can you send me your /proc/partitions from a guest with a few UBDs
> > configured? 
> 
> usermode:~# more /proc/partitions 
> major minor  #blocks  name
> 
>   98     0    1049600 ubda
>   98    16    1049600 ubdb
>   98    32     204801 ubdc

I see. So, the appended patch should be appropriate.

-- Pete

--- linux-2.6.9-rc1/Documentation/devices.txt	2004-08-19 17:15:31.000000000 -0700
+++ linux-2.6.9-rc1-ub/Documentation/devices.txt	2004-09-17 00:35:36.996215488 -0700
@@ -1741,10 +1741,14 @@
 		See http://stm.lbl.gov/comedi or http://www.llp.fu-berlin.de/.
 
  98 block	User-mode virtual block device
-		  0 = /dev/ubd0		First user-mode block device
-		  1 = /dev/ubd1		Second user-mode block device
+		  0 = /dev/ubda		First user-mode block device
+		 16 = /dev/ubdb		Second user-mode block device
 		    ...
 
+		Partitions are handled in the same way as for IDE
+		disks (see major number 3) except that the limit on
+		partitions is 15.
+
 		This device is used by the user-mode virtual kernel port.
 
  99 char	Raw parallel ports
-
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