* New warning: Unable to get device geometry for [filename]
@ 2012-01-27 22:53 Richard W.M. Jones
2012-01-28 3:57 ` Eric Sandeen
0 siblings, 1 reply; 3+ messages in thread
From: Richard W.M. Jones @ 2012-01-27 22:53 UTC (permalink / raw)
To: linux-ext4
I've just noticed that with the latest e2fsprogs, kernel 3.3.0 and
blkid (util-linux 2.20.1), I see this spurious warning when using
mke2fs on a file:
$ truncate -s 4G test1.img
$ mke2fs -t ext2 -q -F test1.img
warning: Unable to get device geometry for test1.img
Oddly this *doesn't* happen except on the very bleeding edge latest
versions of everything. I've not (yet) worked out exactly what
component has to be upgraded to see it ...
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: New warning: Unable to get device geometry for [filename]
2012-01-27 22:53 New warning: Unable to get device geometry for [filename] Richard W.M. Jones
@ 2012-01-28 3:57 ` Eric Sandeen
2012-01-30 14:34 ` Richard W.M. Jones
0 siblings, 1 reply; 3+ messages in thread
From: Eric Sandeen @ 2012-01-28 3:57 UTC (permalink / raw)
To: Richard W.M. Jones; +Cc: linux-ext4
On 1/27/12 4:53 PM, Richard W.M. Jones wrote:
>
> I've just noticed that with the latest e2fsprogs, kernel 3.3.0 and
> blkid (util-linux 2.20.1), I see this spurious warning when using
> mke2fs on a file:
>
> $ truncate -s 4G test1.img
> $ mke2fs -t ext2 -q -F test1.img
> warning: Unable to get device geometry for test1.img
>
> Oddly this *doesn't* happen except on the very bleeding edge latest
> versions of everything. I've not (yet) worked out exactly what
> component has to be upgraded to see it ...
Taking a quick look, I don't _think_ anything above blkid changed
in e2fsprogs lately, but keep us posted.
Does mkfs.xfs do any differently?
thanks,
-Eric
> Rich.
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: New warning: Unable to get device geometry for [filename]
2012-01-28 3:57 ` Eric Sandeen
@ 2012-01-30 14:34 ` Richard W.M. Jones
0 siblings, 0 replies; 3+ messages in thread
From: Richard W.M. Jones @ 2012-01-30 14:34 UTC (permalink / raw)
To: Eric Sandeen; +Cc: linux-ext4
On Fri, Jan 27, 2012 at 09:57:27PM -0600, Eric Sandeen wrote:
> On 1/27/12 4:53 PM, Richard W.M. Jones wrote:
> >
> > I've just noticed that with the latest e2fsprogs, kernel 3.3.0 and
> > blkid (util-linux 2.20.1), I see this spurious warning when using
> > mke2fs on a file:
> >
> > $ truncate -s 4G test1.img
> > $ mke2fs -t ext2 -q -F test1.img
> > warning: Unable to get device geometry for test1.img
> >
> > Oddly this *doesn't* happen except on the very bleeding edge latest
> > versions of everything. I've not (yet) worked out exactly what
> > component has to be upgraded to see it ...
>
> Taking a quick look, I don't _think_ anything above blkid changed
> in e2fsprogs lately, but keep us posted.
Some more observations:
- The warning is 32 bit *only*. Sorry I didn't notice this rather
obvious point before. I have two identically configured Rawhide
guests, except that one is i686 and the other is x86-64, and only
the i686 guest gives this warning.
- If the disk is 1G, no warning. After some binary searching I found
the threshold for the warning is 'truncate -s 2048M' (greater than
or equal gives the warning; smaller, no warning).
> Does mkfs.xfs do any differently?
No warning, at least, not with the default settings and a 4G disk on
32 bit.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-01-27 22:53 New warning: Unable to get device geometry for [filename] Richard W.M. Jones
2012-01-28 3:57 ` Eric Sandeen
2012-01-30 14:34 ` Richard W.M. Jones
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