Libguestfs - Mar 2015 - Re: Name resolution not working inside virt-customize

On 03/13/2015 12:21 PM, Richard W.M. Jones wrote:
> So what's happening is that /etc/resolv.conf in the appliance never
> gets created.
>
Is the /dev/tcp test by IP evidence that the problem goes deeper than 
name resolution?
> Run `./run virt-rescue --network --scratch' on the Ubuntu host and see
if:
>
>   - either dhclient or dhcpcd exists in the appliance
>
>   - they work when you run them, or if there is an error message
>
>   - if running one of them creates /etc/resolv.conf
>
 ><rescue> which dhclient
/sbin/dhclient
 ><rescue> /sbin/dhclient
 ><rescue> ls /etc/resolv.conf
ls: cannot access /etc/resolv.conf: No such file or directory
 ><rescue> which dhcpcd
 ><rescue>

Would there be any point in testing latest code from git?

Lee

On Fri, Mar 13, 2015 at 12:58:52PM -0400, Lee Revell
wrote:
> On 03/13/2015 12:21 PM, Richard W.M. Jones wrote:
> >So what's happening is that /etc/resolv.conf in the appliance never
> >gets created.
> >
> 
> Is the /dev/tcp test by IP evidence that the problem goes deeper
> than name resolution?
> 
> >Run `./run virt-rescue --network --scratch' on the Ubuntu host and
see if:
> >
> >  - either dhclient or dhcpcd exists in the appliance
> >
> >  - they work when you run them, or if there is an error message
> >
> >  - if running one of them creates /etc/resolv.conf
> >
> 
> ><rescue> which dhclient
> /sbin/dhclient
> ><rescue> /sbin/dhclient
> ><rescue> ls /etc/resolv.conf
> ls: cannot access /etc/resolv.conf: No such file or directory
I wonder why dhclient doesn't create /etc/resolv.conf .
> ><rescue> which dhcpcd
> ><rescue>
> 
> Would there be any point in testing latest code from git?
I think you were testing 1.29.29, which is only a few days old.  There
haven't been any changes to the appliance.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
Fedora Windows cross-compiler. Compile Windows programs, test, and
build Windows installers. Over 100 libraries supported.
http://fedoraproject.org/wiki/MinGW

On 03/13/2015 01:29 PM, Richard W.M. Jones wrote:
>>> <rescue> ls /etc/resolv.conf
>> ls: cannot access /etc/resolv.conf: No such file or directory
>
> I wonder why dhclient doesn't create /etc/resolv.conf .
>
Would an strace of dhclient from inside the appliance help?

Lee

On 03/13/2015 01:29 PM, Richard W.M. Jones wrote:
>
> I wonder why dhclient doesn't create /etc/resolv.conf .
>
FWIW, I've also found that on the fedora 21 host, supermin passes all 8 
"make check" tests. On the Ubuntu 14.04 host, it fails 2 of 8. The log
is attached.

Additionally there are other weird differences, like /etc/passwd and 
/etc/shadow and many other /etc files present in the working appliance 
are missing on the non-working one.

Lee