[Libguestfs] [PATCH] added ntfscat_i api

[Richard W.M. Jones]

On Sat, Feb 27, 2016 at 09:55:32PM +0200, noxdafox wrote:
> On 27/02/16 11:23, Richard W.M. Jones wrote:
> >[...]
> >>>>md_create: feature 'mdadm' is not available in this
> >>>>build of libguestfs.  Read 'AVAILABILITY' in the guestfs(3) man page for
> >>>>how to check for the availability of features. at /home/noxdafox/development/libguestfs/test-data/phony-guests/make-fedora-img.pl
> >>>>line 103.
> >>All the other packages were already installed. Most of these
> >>packages seem to be available to other Debian branches but not on
> >>Stretch.
> >The Debian package 'mdadm' is installed on the machine or not?
> $ dpkg -l | grep mdadm
> ii  mdadm 3.4-1                               amd64        tool to
> administer Linux MD arrays (software RAID)
> >
> >Assuming it is installed, what is the output of:
> >
> >   rm -rf tmp/.guestfs-*
> >   ./run guestfish run : supported
> >
> >?
> That precise command fails with the following message:
> 
> libguestfs: error: you must call guestfs_add_drive before guestfs_launch

Ah right, that's because the default backend is 'direct', but on my
machine I have it set to 'libvirt', which supports hotplugging and
thus doesn't require you to specify any drives.

>            mdadm no

OK this is strange, and wrong.

Can you try:

  ./run virt-rescue --scratch

In the virt-rescue shell:

  ls -l {/bin,/sbin,/usr/bin,/usr/sbin}/mdadm

That should show the mdadm binary copied into the appliance, but
likely it does not, because the test here is failing:

https://github.com/libguestfs/libguestfs/blob/master/daemon/md.c#L45
https://github.com/libguestfs/libguestfs/blob/master/daemon/guestfsd.c#L1076

It could be that mdadm is something odd, like a dead symlink?

Anyway, I'll fire up a Debian box in my cloud and see if I can
reproduce this also.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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