How to Allow virt-v2v to import more than 3 disk from esx server
Respected Sir
I have one vm on esxi which is having 4 disk attached to it and all disk are member of sigle lvm group and assign to "/" root partition
Now i am trying to migrate the vm from esxi to rhevm and getting this error
usr/share/perl5/vendor_perl/Sys/VirtConvert/GuestfsHandle.pm line 96
I have read the thread that virt-v2v with four disk is not supported but is there any workaroud or any trick from which i can perform the migration of my vm
because if i will try to migrate with 2 disk attached the boot disk and any other disk
its giving error root device not found
so what can i do in this situation
please reply ASAP
Responses
Guru
2354 points
Pratik
We also hit this undocumented limitation albeit migrating KVM to RHEV. I got in touch with Richard Jones who is responsible for the virt-v2v tool and was told that it was a known issue that is being rectified on an upcoming rewrite. In the meantime, the only way around this issue is to consolidate your virtual disks before you attampt to migrate. That's of course if you can.
Red Hat
Guru
4649 points
You can always detach extra disks from guests before running virt-v2v and dd it later to RHEV imported vm after creating additional disks with same size. Steps to do this are a bit convoluted and unsupported.
Is your ESXi VM Windows or Linux?
One possibility - V2V just the system disk from your source VMware VM to a target KVM VM. Next. disconnect the virtual NIC on your source VM and boot it. Assign your source VM a new IP Address and reconnect its virtual NIC back up.
Boot your target, migrated VM. Now create your target virtual data disks and copy the data virtual disk contents over the network. You could do it with rsync if your VM is Linux, or Windows drag and drop or Windows Backup if Windows.
Of course, this gets more complicated if the VM is running a database or other app that keeps files open on the data disks all the time. If this the case, you'll also need to put something together to boot both VMs without launching that app at boot time.
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