Details
File system GUIDs are necessary when using partedUtil on ESXi 5.0 hosts.
Solution
ESXi 5.0 has the following file system GUIDs:
Partition type | GUID |
VMFS Datastore | 2AE031AA-0F40-DB11-9590000C2911D1B8 |
VMKCore Diagnostic | 8053279D-AD40-DB11-BF97000C2911D1B8 |
VMware Reserved | CDEF9891-C031-DB11-8F78000C2911D1B8 |
The GUIDs in this table are written assuming a little-endian byte order. The GUID for VMFS is written as 0xaa31e02a, 0x400f, 0x11db, 0x95, 0x90, 0x00, 0x0c, 0x29, 0x11, 0xd1, 0xb8, which corresponds to the 16 byte sequence 2a e0 31 aa 0f 40 db 11 95 90 00 0c 29 11 d1 b8 - only the first three blocks are byte swapped.
Based on VMware KB 2004162
