[Xen-devel] Tuning of exported VM template files (XCP 1.1)

[Mark Schneider <ms@xxxxxxxxxxxxxxxxxxxxxx>]

Hello,

How can I modify exported VM template (s. attachment) to fit particular 
requirements?
I would like to install them again after modifications for creating of 
new VMs.
Exported VM templates are binary files (kind of DB). Are there any tools 
to edit such VM template files? I have to use xe CLI / Linux tools 
(can't use XenCenter).
Another possibility would be to export a template from already modified 
installed VM. How? I didn't find any useful information in docs or on 
the net about this topic.
Thank you in advance for any hints.

regards, Mark

--
ms@xxxxxxxxxxxxxxxxxxxxxx


ps. Example of VM structure
# ---
[root@xcp11db02 ~]# xe vm-list name-label=ubuntu11dbrt20 params=
uuid ( RO)                          : 4133031a-e064-38e7-416d-72e1eb0a9118
                    name-label ( RW): ubuntu11dbrt20
              name-description ( RW): Installed via xe CLI
                  user-version ( RW): 1
                 is-a-template ( RW): false
                 is-a-snapshot ( RO): false
                   snapshot-of ( RO):<not in database>
                     snapshots ( RO):
                 snapshot-time ( RO): 19700101T00:00:00Z
                 snapshot-info ( RO):
                        parent ( RO): 7c3081c0-5d69-5d9b-3c41-c162ded416ee
                      children ( RO):
             is-control-domain ( RO): false
                   power-state ( RO): running
                 memory-actual ( RO): 8589848576
                 memory-target ( RO):<expensive field>
               memory-overhead ( RO): 77594624
             memory-static-max ( RW): 8589934592
            memory-dynamic-max ( RW): 8589934592
            memory-dynamic-min ( RW): 2147483648
             memory-static-min ( RW): 134217728
              suspend-VDI-uuid ( RO):<not in database>
                  VCPUs-params (MRW):
                     VCPUs-max ( RW): 8
              VCPUs-at-startup ( RW): 4
        actions-after-shutdown ( RW): Destroy
          actions-after-reboot ( RW): Restart
           actions-after-crash ( RW): Restart
                 console-uuids (SRO): bd4b277b-6941-7111-7b24-6579ada555ca
                      platform (MRW): timeoffset: 0; nx: false; acpi: true; 
apic: true; pae: true; viridian: true
            allowed-operations (SRO): changing_dynamic_range; hard_reboot; 
hard_shutdown; pause; snapshot
            current-operations (SRO):
            blocked-operations (MRW):
           allowed-VBD-devices (SRO):<expensive field>
           allowed-VIF-devices (SRO):<expensive field>
                possible-hosts ( RO):<expensive field>
               HVM-boot-policy ( RW): BIOS order
               HVM-boot-params (MRW): order: dc
         HVM-shadow-multiplier ( RW): 1.000
                     PV-kernel ( RW):
                    PV-ramdisk ( RW):
                       PV-args ( RW):
                PV-legacy-args ( RW):
                 PV-bootloader ( RW):
            PV-bootloader-args ( RW):
           last-boot-CPU-flags ( RO):
              last-boot-record ( RO):<expensive field>
                   resident-on ( RO): 280e2816-2d45-4217-881e-e2ad4b423159
                      affinity ( RW):<not in database>
                  other-config (MRW): last_shutdown_time: 20111025T18:32:09Z; 
last_shutdown_action: Restart; last_shutdown_initiator: external; 
last_shutdown_reason: rebooted; mac_seed: a507ca72-1a89-e83d-a1b1-1ee749e6088f; 
install-methods: cdrom
                        dom-id ( RO): 6
               recommendations ( RO):<restrictions><restriction field="memory-static-max" max="34359738368" /><restriction field="vcpus-max" 
max="8" /><restriction property="number-of-vbds" max="7" /><restriction property="number-of-vifs" max="7" /></restrictions>
                 xenstore-data (MRW):
                 ha-always-run ( RW): false
           ha-restart-priority ( RW):
                         blobs ( RO):
                    start-time ( RO): 20111025T18:32:29Z
                  install-time ( RO): 20111024T17:22:55Z
                  VCPUs-number ( RO): 4
             VCPUs-utilisation (MRO):<expensive field>
                    os-version (MRO):<not in database>
            PV-drivers-version (MRO):<not in database>
         PV-drivers-up-to-date ( RO):<not in database>
                        memory (MRO):<not in database>
                         disks (MRO):<not in database>
                      networks (MRO):<not in database>
                         other (MRO):<not in database>
                          live ( RO):<not in database>
    guest-metrics-last-updated ( RO):<not in database>
                   cooperative ( RO):<expensive field>
             protection-policy ( RW):<not in database>
         is-snapshot-from-vmpp ( RO): false
                          tags (SRW):

Attachment: Other-linux-template
Description: Binary data

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