Getting the following error when trying to upgrade device from version 11.4 to 12.0

info: >++++ result: info: mount: proc already mounted or /mnt/tm_install/14834.2RmAWa/proc busy info: mount: according to mtab, proc is already mounted on /mnt/tm_install/14834.2RmAWa/proc info: >---- error: status 8192 returned by command: mount -t proc proc /mnt/tm_install/14834.2RmAWa/proc Could not access configuration destination; sda, 3 . umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy umount: /mnt/tm_install/14834.2RmAWa: device is busy

Has anyone else experienced this type of issue?

Trying to go from BIG-IP 11.4.1 Build 637.0 Hotfix HF3 to 12.0 Build 0.0.606 (Latest version)