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SubjectRe: ub vs. ubd
On Fri, 17 Sep 2004 01:23:35 -0400
Jeff Dike <jdike@addtoit.com> wrote:

> zaitcev@redhat.com 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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