maybe I''ve missed something but if I reboot or shutdown a guest domain
I
can''t start it again. xm --list doesn''t show the domain.
From the
Virtual Machine Manager (FC6) if I go : File --> Restore saved machine
(Restore a saved machine from a filesystem image) and pint to
/vm/webserver I get a dialogue box stating:
*Error restoring domain ''/vm/webserver''. Is the domain
already
running?*
Similary if I try to restore from the disk file with xm restore I get
the following:
*# xm restore /vm/webserver*
*Error: Restore failed*
*Usage: xm restore <CheckpointFile>*
*Restore a domain from a saved state.*
I''m guessing that the disk file is not the correct file to restore
from - <CheckpointFile>?? but I can''t find anywhere
documentation on
how to open these machines.
This is my first bash at virtualization in Xen so I appologize if I''ve
missed something in the docs. What can I do to open this guest?
I am experiencing the same problem on a new Dell Optiplex GX520. I''m new at this as well. Paul O''rorke wrote:> maybe I''ve missed something but if I reboot or shutdown a guest domain > I can''t start it again. xm --list doesn''t show the domain. From the > Virtual Machine Manager (FC6) if I go : File --> Restore saved > machine (Restore a saved machine from a filesystem image) and pint to > /vm/webserver I get a dialogue box stating: > > *Error restoring domain ''/vm/webserver''. Is the domain already > running?* > > > Similary if I try to restore from the disk file with xm restore I get > the following: > > *# xm restore /vm/webserver* > *Error: Restore failed* > *Usage: xm restore <CheckpointFile>* > > *Restore a domain from a saved state.* > > > I''m guessing that the disk file is not the correct file to restore > from - <CheckpointFile>?? but I can''t find anywhere documentation > on how to open these machines. > > This is my first bash at virtualization in Xen so I appologize if I''ve > missed something in the docs. What can I do to open this guest? > > ------------------------------------------------------------------------ > > -- > Fedora-xen mailing list > Fedora-xen@redhat.com > https://www.redhat.com/mailman/listinfo/fedora-xen >-- Rodger Haynes Thompson Printing & Lithographing Paris, ON N3L 3K4 519-442-7804 x210
Daniel P. Berrange
2006-Nov-10 14:01 UTC
Re: Me too - Re: [Fedora-xen] dissapearing guests
On Fri, Nov 10, 2006 at 08:54:27AM -0500, Rodger Haynes wrote:> I am experiencing the same problem on a new Dell Optiplex GX520. I''m new > at this as well. > > Paul O''rorke wrote: > >maybe I''ve missed something but if I reboot or shutdown a guest domain > >I can''t start it again. xm --list doesn''t show the domain. From the > >Virtual Machine Manager (FC6) if I go : File --> Restore saved > >machine (Restore a saved machine from a filesystem image) and pint to > >/vm/webserver I get a dialogue box stating: > > > > *Error restoring domain ''/vm/webserver''. Is the domain already > > running?* > > > > > >Similary if I try to restore from the disk file with xm restore I get > >the following: > > > > *# xm restore /vm/webserver* > > *Error: Restore failed* > > *Usage: xm restore <CheckpointFile>* > > > > *Restore a domain from a saved state.* > > > > > >I''m guessing that the disk file is not the correct file to restore > >from - <CheckpointFile>?? but I can''t find anywhere documentation > >on how to open these machines.No, the ''restore'' functionality is for re-activating a suspended VM that has previously been saved out to disk with ''save''. Think of it as equivalent of ''hibernate to disk'' on your laptop. If you shutdown/reboot the domain then ''restore'' is not what you want instead you want ''create'' which is equivalent of cold boot on a laptop. eg, ''xm create <name>''. Unfortunately once you shutdown a domain, XenD looses all knowledge of it - that''s why ''xm list'' didn''t show it, and virt-manager can''t see it. Rest assured the domain is stilon disk - the config file is kept in /etc/xen. If you use ''xm create'' then it loads the config file into XenD and boots the domain. We''re actively working on getting support for inactivate domains into virt-manager which will help resolve the confusion in this area. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|
Thanks - that works great! Daniel P. Berrange wrote:> On Fri, Nov 10, 2006 at 08:54:27AM -0500, Rodger Haynes wrote: > >> I am experiencing the same problem on a new Dell Optiplex GX520. I''m new >> at this as well. >> >> Paul O''rorke wrote: >> >>> maybe I''ve missed something but if I reboot or shutdown a guest domain >>> I can''t start it again. xm --list doesn''t show the domain. From the >>> Virtual Machine Manager (FC6) if I go : File --> Restore saved >>> machine (Restore a saved machine from a filesystem image) and pint to >>> /vm/webserver I get a dialogue box stating: >>> >>> *Error restoring domain ''/vm/webserver''. Is the domain already >>> running?* >>> >>> >>> Similary if I try to restore from the disk file with xm restore I get >>> the following: >>> >>> *# xm restore /vm/webserver* >>> *Error: Restore failed* >>> *Usage: xm restore <CheckpointFile>* >>> >>> *Restore a domain from a saved state.* >>> >>> >>> I''m guessing that the disk file is not the correct file to restore >>> >> >from - <CheckpointFile>?? but I can''t find anywhere documentation >> >>> on how to open these machines. >>> > > No, the ''restore'' functionality is for re-activating a suspended VM > that has previously been saved out to disk with ''save''. Think of it > as equivalent of ''hibernate to disk'' on your laptop. > > If you shutdown/reboot the domain then ''restore'' is not what you want > instead you want ''create'' which is equivalent of cold boot on a laptop. > eg, ''xm create <name>''. > > Unfortunately once you shutdown a domain, XenD looses all knowledge of > it - that''s why ''xm list'' didn''t show it, and virt-manager can''t see > it. Rest assured the domain is stilon disk - the config file is kept > in /etc/xen. If you use ''xm create'' then it loads the config file into > XenD and boots the domain. > > We''re actively working on getting support for inactivate domains into > virt-manager which will help resolve the confusion in this area. > > Regards, > Dan. >-- Rodger Haynes Thompson Printing & Lithographing Paris, ON N3L 3K4 519-442-7804 x210
Great when there is a simple fix. Thanks soooo much. Is this documented somewhere and I missed it? Rodger Haynes wrote:> Thanks - that works great! > > Daniel P. Berrange wrote: >> On Fri, Nov 10, 2006 at 08:54:27AM -0500, Rodger Haynes wrote: >> >>> I am experiencing the same problem on a new Dell Optiplex GX520. I''m >>> new at this as well. >>> >>> Paul O''rorke wrote: >>> >>>> maybe I''ve missed something but if I reboot or shutdown a guest >>>> domain I can''t start it again. xm --list doesn''t show the domain. >>>> From the Virtual Machine Manager (FC6) if I go : File --> Restore >>>> saved machine (Restore a saved machine from a filesystem image) >>>> and pint to /vm/webserver I get a dialogue box stating: >>>> >>>> *Error restoring domain ''/vm/webserver''. Is the domain already >>>> running?* >>>> >>>> >>>> Similary if I try to restore from the disk file with xm restore I >>>> get the following: >>>> >>>> *# xm restore /vm/webserver* >>>> *Error: Restore failed* >>>> *Usage: xm restore <CheckpointFile>* >>>> >>>> *Restore a domain from a saved state.* >>>> >>>> >>>> I''m guessing that the disk file is not the correct file to restore >>>> >>> >from - <CheckpointFile>?? but I can''t find anywhere >>> documentation >>>> on how to open these machines. >> >> No, the ''restore'' functionality is for re-activating a suspended VM >> that has previously been saved out to disk with ''save''. Think of it >> as equivalent of ''hibernate to disk'' on your laptop. >> >> If you shutdown/reboot the domain then ''restore'' is not what you want >> instead you want ''create'' which is equivalent of cold boot on a laptop. >> eg, ''xm create <name>''. >> Unfortunately once you shutdown a domain, XenD looses all knowledge of >> it - that''s why ''xm list'' didn''t show it, and virt-manager can''t see >> it. Rest assured the domain is stilon disk - the config file is kept >> in /etc/xen. If you use ''xm create'' then it loads the config file into >> XenD and boots the domain. >> >> We''re actively working on getting support for inactivate domains into >> virt-manager which will help resolve the confusion in this area. >> >> Regards, >> Dan. >> >