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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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    • J Offline
      josef1909
      last edited by

      Hi @olivierlambert ,
      Thanks for that script. I was working on it the last day and had some attempt to day with some python 2to3 converter. I am not lucky 🙂
      Is there a tested Python3 script ?
      Cheers and thanks for your help,
      Josef

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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 🙂

        J 1 Reply Last reply Reply Quote 0
        • 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?

            J 1 Reply Last reply Reply Quote 0
            • 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?

              J 1 Reply Last reply Reply Quote 0
              • 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!

                      J 1 Reply Last reply Reply Quote 0
                      • 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

                            J 1 Reply Last reply Reply Quote 0
                            • 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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