sethduuid claims that uuid has changed, but in reality not

[franz1234]

I try to change uuid, sethduuid says yes, changed, but in reality and proven by dumphdinfo the uuid has not changed.

Please see below, dumphdinfo shows before sethduui: 2c5ca471-5bdf-4250-b085-b9a2cbc0f250

sethduuid claims to change it to d397030d-ae38-4377-8f63-ed784ad4080f

But dumphdinfo after sethdduuid shows the same uuid as before: 2c5ca471-5bdf-4250-b085-b9a2cbc0f250

Host OS: Windows 7
Virtualbox: 4.3.12

c:\Program Files\Oracle\VirtualBox>vboxmanage.exe internalcommands dumphdinfo "E:\BAO-disk1.vmdk"
--- Dumping VD Disk, Images=1
Dumping VD image "E:\BAO-disk1.vmdk" (Backend=VMDK)
Header: Geometry PCHS=16383/16/63 LCHS=1024/255/63 cbSector=314572800
Header: uuidCreation={2c5ca471-5bdf-4250-b085-b9a2cbc0f250}Header: uuidModification={60e14268-5b9b-481c-8bd2-e343daf7cec7}
Header: uuidParent={00000000-0000-0000-0000-000000000000}
Header: uuidParentModification={00000000-0000-0000-0000-000000000000}

c:\Program Files\Oracle\VirtualBox>vboxmanage.exe internalcommands sethduuid "E:\BAO-disk1.vmdk"
UUID changed to: d397030d-ae38-4377-8f63-ed784ad4080f

c:\Program Files\Oracle\VirtualBox>vboxmanage.exe internalcommands dumphdinfo "E:\BAO-disk1.vmdk"
--- Dumping VD Disk, Images=1
Dumping VD image "E:\BAO-disk1.vmdk" (Backend=VMDK)
Header: Geometry PCHS=16383/16/63 LCHS=1024/255/63 cbSector=314572800
Header: uuidCreation={2c5ca471-5bdf-4250-b085-b9a2cbc0f250}
Header: uuidModification={60e14268-5b9b-481c-8bd2-e343daf7cec7}
Header: uuidParent={00000000-0000-0000-0000-000000000000}
Header: uuidParentModification={00000000-0000-0000-0000-000000000000}

[Frank Mehnert]

I can confirm this behavior if the GUI is running in parallel.

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.