Proxmox/Hyper-V/VMware

Error installing Proxmox VE: unable to create volume group at /usr/bin/proxinstall line 519

When installing Proxmox VE 4.1, it fails right at the begining of installation with messages and prompted “unable to create volume group at /usr/bin/proxinstall line 519”. Error as follow below.

 Device boot Start End Blocks Id System
 /dev/sda1 * 32 524319 524208 83 Linux
 /dev/sda2 524320 293033631 292509312 0e Linux LVM
 /dev/sda3 0 - 0 0 Empty
 /dev/sda4 0 - 0 0 Empty
 Successfully wrote the new partition table
 [..]
 Physical volume /dev/sda2" successfully created
 A volume group called 'pve' already exists
 unable to create volume group at /usr/bin/proxinstall line 519
 umount: /target/boot: not found
 umount: /target/var: not found
 umount: /target/tmp: not found
 umount: /target/proc: not found
 umount: /target: not mounted

Solution
– I resolved this problem by simply changing the RAID option to 0 and the file system to ZFS to overide the existing block (volume).
– After this i reinstalled, haven reverted back to the existing file system and reinstalled Proxmox and it worked.

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