Re: How to get the hostname in stage2 ?

[David Cantrell <dcantrell redhat com>]

Jesse Keating wrote:
> On Wed, 2009-01-21 at 13:35 +0200, Alexander Todorov wrote:
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>> Hello,
>> in a %post I need the hostname of the machine being installed. hostname and
>> python's os.uname() report localhost.localdomain while anaconda displays the
>> hostname that comes from the DHCP server in the GUI. How do I get the value
>> which comes from DHCP? Is it stored somewhere or my only possibility is to parse
>> /etc/sysconfig/network ?
>>
> 
> Are you calling your post code from within the chroot, or outside of the
> chroot?  Inside the chroot at post-install time I don't believe the
> hostname or resolver has been setup, but outside the chroot it has.

sethostname() is called from loader if you do a network boot method and
we have to set up networking in loader.  If you bring up networking only
for package installation, we don't specifically call sethostname().  I
needed to do a sethostname() call in loader to preserve one particular
install case that I can't remember right now.  What would be nice is to
have NetworkManager setting the hostname for us if it can.

In %post, you can read the system config files to pick out the hostname.

-- 
David Cantrell <dcantrell redhat com>
Red Hat / Honolulu, HI