[Spacewalk-list] how to use 'file preservation'?

[Yuriy Demchenko]

Thanks Stephen for the tip, i tried to run it with -vvv and got this 
error among all:
> Preserve files! : ['/etc/mongod.conf', '/etc/configsvr.conf', 
> '/etc/mongos.conf']
> - looking for Cobbler at http://spacewalk.mydomain.local:443/cobbler_api
> Traceback (most recent call last):
>   File "/usr/lib/python2.6/site-packages/koan/utils.py", line 568, in 
> __try_connect
>     xmlrpc_server.ping()
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in __call__
>     return self.__send(self.__name, args)
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in __request
>     verbose=self.__verbose
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 1253, in request
>     return self._parse_response(h.getfile(), sock)
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 1387, in _parse_response
>     p.feed(response)
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 601, in feed
>     self._parser.Parse(data, 0)
> ExpatError: syntax error: line 1, column 49
> - looking for Cobbler at https://spacewalk.mydomain.local:443/cobbler_api
> - reading URL: 
> http://spacewalk.mydomain.local/cblr/svc/op/ks/system/localhost.localdomain:1
> install_tree: http://spacewalk.mydomain.local/ty/b5hJTnVG
> downloading initrd initrd.img to /boot/initrd.img_koan
> url=http://spacewalk.mydomain.local/cobbler/images/centos6:1:SpacewalkDefaultOrganization/initrd.img
> - reading URL: 
> http://spacewalk.mydomain.local/cobbler/images/centos6:1:SpacewalkDefaultOrganization/initrd.img
> downloading kernel vmlinuz to /boot/vmlinuz_koan
> url=http://spacewalk.mydomain.local/cobbler/images/centos6:1:SpacewalkDefaultOrganization/vmlinuz
> - reading URL: 
> http://spacewalk.mydomain.local/cobbler/images/centos6:1:SpacewalkDefaultOrganization/vmlinuz
> - ['/sbin/grubby', '--add-kernel', '/boot/vmlinuz_koan', '--initrd', 
> '/boot/initrd.img_koan', '--args', '"ksdevice=link lang= text 
> ks=http://spacewalk.mydomain.local/cblr/svc/op/ks/system/localhost.localdomain:1 
> kssendmac ipv6.disable=1 "', '--make-default', '--title=kick1422545220']
> - reboot to apply changes
> CMD: ['/usr/sbin/merge-rd.sh', '/boot/initrd.img', '/boot/initrd.img', 
> '/tmp/ks-tree-shadow']
> D: Sending back response(1, 'Error creating the new RAM disk', 
> {'status': 1, 'stderr': '', 'stdout': 'Usage: /usr/sbin/merge-rd.sh 
> SOURCERD DESTRD /path/to/merge/from\n'})
In spacewalk webinterface action marked as 'failed' with reason 'Error 
creating the new RAM disk'entos6
/tmp/ks-tree-shadow with copied configs are in fact created, but it 
seems 'merge-rd.sh' called with wrong parameters - there're no 
'/boot/initrd.img', koan created '/boot/initrd.img_koan' instead.
Any ideas how to fix it?

Yuriy Demchenko

On 01/29/2015 06:01 PM, Stephen Herr wrote:
> File preservation will only work with re-provisioning (through 
> Spacewalk, so not PXE booting), and it's expected that there's no 
> change to the kickstart file.
>
> It should work with what you've tried though.
>
> File preservation works by saving the files listed to a particular 
> place on the filesystem (/tmp/ks-tree-copy) when rhn_check picks up 
> the reprovision action, and then the kickstart file always contains a 
> section to copy files in that dir (if any) back onto the filesystem 
> after the kickstart. So the kickstart file will not change because it 
> always contains that section.
>
> Try scheduling another reprovision with that profile, running 
> "rhn_check -vvv" by hand to pick up the action so you can see the 
> verbose output on the console, and then 'shutdown -c' to cancel the 
> three minute reboot timer so you can poke around. Between the console 
> output and looking at /tmp/ks-tree-copy maybe that will give you a 
> hint about what's wrong.
>
> -Stephen
>
> On 01/29/2015 08:17 AM, Yuriy Demchenko wrote:
>> Hi,
>>
>> I wonder how to use 'file preservation' function during kickstart? I
>> need to re-provision several systems via kickstart, preserving several
>> config files.
>> I've created file preservation list in 'system->kickstart->file
>> preservation', then checked this list in kickstart profile
>> '<profilename> ->system details->file preservation', clicked 'update
>> kickstart'
>> however, I cant see any changes to the raw kickstart file
>> and when I do re-provision with that kickstart (either via 'provision'
>> tab in SW, or just pxe-booting with selected profile) required configs
>> are not preserved.
>> What am I missing?
>> I'm using spacewalk-2.2
>>
>
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