[SOLVED] CentOS 7 Migration: From XenServer to Proxmox VE

[tgkmilo]

Hello everyone!

I'm trying to migrate a VM from XeServer(6.5) to Proxmox(6.3-4)

Until few days ago, I can do it following next steps:

1. Export VMs from XenServer like OVF ( .ovf + .vhd file)

2. Convert VM disk (.vhd file) to qcow2 format (with StarWind 2V2 Converter)

3. Create a VM with same parameters on pve environment (RAM, CPUs....) and this specific requirements: SeaBIOS(BIOS), VirtIO SCSI (SCSI Controller). HDD is not important, it will be deleted.

4. Import our qcow2 file to new VM using -->

qm importdisk <vm id> <filename>.qcow2 <storage-dest> -format qcow2

5. After this, we detach the disk created on initial configuration.

6. Add the imported disk configuring it with VirtIO Block (Bus/Device).

7. Runs VMs on Proxmox.

8. Use rescue mode.

9. Regenerate grub --->

dracut --regenerate-all -f && grub2-mkconfig /boot/grub2/grub.cfg

10. Reboot.

I have migrated lot of virtual machines from XenServer following above steps, but I have to do another one last week and DOES NOT WORK!

When I try to run the virtual machine, pve does not detect any bootable device. BUUUUTT, when I add a CentOS 7 CD, it detects imported HDD. If we run the CD in Troubleshooting option I can do STEP 9 successfully. But when I reboot the system, the same problem appears, the HDD is not detected!

Could you help me?

 

[tgkmilo]

[SOLVED]

I have found the problem, and SOLUTION...

When I have migrated old VMs the most recently pve version was 6.0-12

In this version all boot options for the guest are enabled by default, you only have to choose the order.



On the other hand, on the most recently version (6.3-4) when we delete the initial disk the boot order changes.



Boot from disk are disbled! You have to enable it and reorder MANUALLY!



I hope that someone can earn some profit from this post in the future,

Thank you so much.