bind-mounting files in mock

[Clark Williams]

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On Wed, 18 Mar 2009 14:52:35 -0400
Jay Greguske <jgregusk at redhat.com> wrote:

> Hello,
> 
> While trying to get livecd-creator working in a mock-built chroot, I 
> discovered that only directories could be bind-mounted using the 
> bind_mount plugin. I made a few code changes and attached a patch for 
> your consideration that enables the bind-mounting of files. Like 
> directories, the bind-mounting of files will require 
> 'internal_dev_setup' be set to False, otherwise the mount command will fail.
> 
> In the chroot configuration file the following syntax would be allowed 
> (which looks just like that which was used for bind-mounting directories):
> 
> config_opts['plugin_conf']['bind_mount_opts']['files'].append(('/dev/loop0', 
> '/dev/loop0'))
> 
> Please let me know what you think, and thanks in advance for your time!
> 
> - Jay

Jay,

Finally got some time to pull in mock patches and work on bugs. Sorry
it's taken this long...

I'm not seeing how your stuff would work. A bind-mount only works on
directories, not files. If I try to bind-mount /dev/loop0 somewhere by
hand I get the following:

$ mkdir -p /tmp/foo && cd /tmp/foo
$ sudo mount -n --bind /dev/loop0 .
mount: Not a directory
$ mkdir dev
$ sudo mount -n --bind /dev/loop0 dev
mount: Not a directory

What am I missing here?

Clark
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