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Re: [Xen-users] EVMS in dom-U


The patch applied perfectly to EVMS 2.5.3 (I decided to upgrade from
2.5.2 while I was at it) but unfortunately there's still a problem.
Now, instead of "Function not implemented." I'm getting "Invalid argument":

Dec 01 22:59:28 samba _8_ LocalDskMgr: get_geometry: Error getting
geometry for disk sda: 22: Invalid argument.

In addition (not sure if this helps), I've found that hdparm has
problems getting geometry in my domU too:

samba ~ # hdparm /dev/sda

 readonly     =  0 (off)
 readahead    = 256 (on)
 HDIO_GETGEO failed: Function not implemented

Any ideas?  Thanks for your help so far.


> Hi, James.
> The Local Disk Manager in EVMS has had some recent changes to its algorithm
> for getting the geometry of the disk.  The changes have not yet made it
> into an official release.  (2.5.4 should come out "very soon".)  Here is a
> patch built from the current CVS tree.  It should apply to 2.5.1, but the
> offsets may be wrong.
> (See attached file: localdskmgr.patch)
> If the patch applies and you still have problems, then we will have to look
> at the ioctls to get the disk geometry.  It may be that EVMS needs another
> tweak to handle the ioctl.  It may be that Xen needs to respond to the
> ioctl correctly.
> Steve D.

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