Repair Corrupt Flat Vmdk Files [repack] -

# Disk DescriptorFile version=1 CID=xxxxxxxx parentCID=ffffffff createType="twoGbMaxExtentFlat"

fsck -y /dev/sdb1

The most direct way to fix minor VMDK corruption is through built-in VMware utilities. Using VMware vdiskmanager (Windows/Workstation) repair corrupt flat vmdk files