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    Xen to XCP-NG

    Scheduled Pinned Locked Moved Unsolved Migrate to XCP-ng
    18 Posts 3 Posters 977 Views 3 Watching
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    • olivierlambertO Offline
      olivierlambert Vates 🪐 Co-Founder CEO
      last edited by

      Sadly, you'll need Python 2. I'll be happy if the community around could make it updated for Python 3 🙂

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      • J Offline
        josef1909 @olivierlambert
        last edited by josef1909

        Hi @olivierlambert ,
        I worked on the P3 Script. at this time, I getting to the stage where the script returns
        VM Details:
        Name: justanothername
        Type: Paravirtualised
        VCPUS: 4
        Memory(bytes): 2147483648
        ACPI: true
        APIC: true
        PAE: true
        NX: false
        Viridian: true
        Disk xvda(Bootable): /dev/vgxen/justanothername
        Connecting to target xxx.xxx.145.157

        Processing disk /dev/vgxen/justanothername(21474836480 bytes)
        Internal Error. Possible problem: Please make sure you have enough space on your default SR

        While this is an issue which is announced on the link you send, I check via xoa and xcp-ng center. We have set a default SR. may I ask your help to proceed?
        Screenshot from 2023-11-29 20-58-02.png

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        • olivierlambertO Offline
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by

          Hmm it's probably not processing correctly the SR size on destination?

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          • J Offline
            josef1909 @olivierlambert
            last edited by

            @olivierlambert Can we just stream it like fire and forget as long it can identify the default SR?

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            • J Offline
              josef1909 @josef1909
              last edited by

              @josef1909 I just need to go ahead to check if the script will send more issues I need to work on.

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              • J Offline
                josef1909
                last edited by

                Hi @olivierlambert ,
                Please check script here or might suggest someone to collaborate:
                https://github.com/josef-bocklage/xcp-ng_xen2xcpng-py3/blob/main/xen2xcpng-Vpy3.py

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                • J Offline
                  josef1909
                  last edited by

                  Hi, I just wanted to check-in if someone was so kind and had a look.
                  Cheers,
                  Josef

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                  • olivierlambertO Offline
                    olivierlambert Vates 🪐 Co-Founder CEO
                    last edited by olivierlambert

                    Hi!

                    We are pretty busy here (at Vates) about 8.2.1 new ISO and 8.3 release. We'll be happy that anyone around in the community is able to assist!

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                    • J Offline
                      josef1909 @olivierlambert
                      last edited by

                      @olivierlambert understand.
                      Please let me know if I can help trigger people to support on that.
                      It seems that this topic has already a little dust on it - so I am happy to collabortate.

                      In the meantime, I made some Tests and will provide the last lines from the debugging.

                      > /root/xen2xcpng3-V1.py(839)<module>()
-> if options.filename:
(Pdb) n
> /root/xen2xcpng3-V1.py(842)<module>()
-> machine.save_as(server=options.server, username=options.username,
(Pdb) n
> /root/xen2xcpng3-V1.py(843)<module>()
-> password=options.password, ssl= not options.nossl,  sparse=options.sparse, sftp=options.sftp)
(Pdb) n
> /root/xen2xcpng3-V1.py(842)<module>()
-> machine.save_as(server=options.server, username=options.username,
(Pdb) n
VM Details:
Name: JUSTANOTHERNAME
Type: Paravirtualised
VCPUS: 4
Memory(bytes): 2147483648
ACPI: true
APIC: true
PAE: true
NX: false
Viridian: true
Disk xvda(Bootable): /dev/vgxen/JUSTANOTHERNAME
Connecting to target XXX.XXX.XXX.157

Processing disk /dev/vgxen/JUSTANOTHERNAME(21474836480 bytes)
TypeError: initial_value must be str or None, not bytes
> /root/xen2xcpng3-V1.py(842)<module>()
-> machine.save_as(server=options.server, username=options.username,
(Pdb)
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                      • J Offline
                        josef1909
                        last edited by

                        Here are some more logs from todays session:

                        (Pdb) n
> /root/xen2xcpng3-V1.py(871)<module>()
-> machine.save_as(server=options.server, username=options.username,
(Pdb) w
  /usr/lib/python3.9/bdb.py(580)run()
-> exec(cmd, globals, locals)
  <string>(1)<module>()
> /root/xen2xcpng3-V1.py(871)<module>()
-> machine.save_as(server=options.server, username=options.username,
(Pdb) n
VM Details:
Name: JUSTANOTHERNAME
Type: Paravirtualised
VCPUS: 4
Memory(bytes): 2147483648
ACPI: true
APIC: true
PAE: true
NX: false
Viridian: true
Disk xvda(Bootable): /dev/vgxen/JUSTANOTHERNAME
Connecting to target xxx.xxx.xxx.157

Processing disk /dev/vgxen/JUSTANOTHERNAME(21474836480 bytes)
TypeError: initial_value must be str or None, not bytes
> /root/xen2xcpng3-V1.py(871)<module>()
-> machine.save_as(server=options.server, username=options.username,
(Pdb) w
  /usr/lib/python3.9/bdb.py(580)run()
-> exec(cmd, globals, locals)
  <string>(1)<module>()
> /root/xen2xcpng3-V1.py(871)<module>()
-> machine.save_as(server=options.server, username=options.username,
  /root/xen2xcpng3-V1.py(617)save_as()
-> string = io.StringIO(input_buffer)
(Pdb) n
--Return--
> /root/xen2xcpng3-V1.py(871)<module>()->None
-> machine.save_as(server=options.server, username=options.username,
(Pdb) w
  /usr/lib/python3.9/bdb.py(580)run()
-> exec(cmd, globals, locals)
  <string>(1)<module>()->None
> /root/xen2xcpng3-V1.py(871)<module>()->None
-> machine.save_as(server=options.server, username=options.username,
(Pdb) n
TypeError: initial_value must be str or None, not bytes
> <string>(1)<module>()->None
(Pdb) w
  /usr/lib/python3.9/bdb.py(580)run()
-> exec(cmd, globals, locals)
> <string>(1)<module>()->None
  /root/xen2xcpng3-V1.py(871)<module>()->None
-> machine.save_as(server=options.server, username=options.username,
  /root/xen2xcpng3-V1.py(617)save_as()
-> string = io.StringIO(input_buffer)
(Pdb) n
--Return--
> <string>(1)<module>()->None
(Pdb) w
  /usr/lib/python3.9/bdb.py(580)run()
-> exec(cmd, globals, locals)
> <string>(1)<module>()->None
(Pdb) n
Traceback (most recent call last):
  File "/usr/lib/python3.9/pdb.py", line 1723, in main
    pdb._runscript(mainpyfile)
  File "/usr/lib/python3.9/pdb.py", line 1583, in _runscript
    self.run(statement)
  File "/usr/lib/python3.9/bdb.py", line 580, in run
    exec(cmd, globals, locals)
  File "<string>", line 1, in <module>
  File "/root/xen2xcpng3-V1.py", line 871, in <module>
    machine.save_as(server=options.server, username=options.username,
  File "/root/xen2xcpng3-V1.py", line 617, in save_as
    string = io.StringIO(input_buffer)
TypeError: initial_value must be str or None, not bytes
Uncaught exception. Entering post mortem debugging
Running 'cont' or 'step' will restart the program
> /root/xen2xcpng3-V1.py(617)save_as()
-> string = io.StringIO(input_buffer)
(Pdb) q
Post mortem debugger finished. The /root/xen2xcpng3-V1.py will be restarted
> /root/xen2xcpng3-V1.py(13)<module>()
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                        • olivierlambertO Offline
                          olivierlambert Vates 🪐 Co-Founder CEO
                          last edited by

                          I know @yann is very busy but if he can, he'll take a look

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                          • J Offline
                            josef1909 @olivierlambert
                            last edited by

                            @olivierlambert @yann
                            I understand that there is a big GoLive on your side.
                            Do we have alternative suggestions to migrate from xen to xcp-ng?

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                            • olivierlambertO Offline
                              olivierlambert Vates 🪐 Co-Founder CEO
                              last edited by

                              The other alternative, if a bit cumbersome, is to use Clonezilla, like a P2V situation 🙂

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                              • andrewperryA Offline
                                andrewperry
                                last edited by

                                I also worked on trying to update the script to python3 last week and hadn't realised you had this work here so was starting from scratch.

                                I am not a python developer so when I got to errors in the section that is actually streaming the files I decided to stop and just finish 'making' python2.7 on the servers that I need to get the VMs off and that has worked for me.

                                It doesn't seem like it should be a huge amount of work left to upgrade the script to python3 but probably not something I have the skills or time for right now.

                                Thanks for sharing your efforts here. What have you ended up doing @josef1909

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                                • olivierlambertO Offline
                                  olivierlambert Vates 🪐 Co-Founder CEO
                                  last edited by

                                  Thanks for re-pinging. This might be a "simple" mission to finance to a Python specialist. Let me add @AtaxyaNetwork in the loop.

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