Booting from VHD only works for Windows 7 or Windows 2008. It will not work for USB device since the usb drivers are initialized too late in the boot process(works for eSATA??). The performance loss is about 3% compared to “normal” boot, since only the hard driver layer is virtualized. <\/p>\n
When installation process goes to “install now”, press(Shift + F10) to go to DOS prompt. In admin Dos prompt: Booting from VHD only works for Windows 7 or Windows 2008. It will not work for USB device since the usb drivers are initialized too late in the boot process(works for eSATA??). The performance loss is about 3% compared to … Continue reading
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\ndiskpart
\n***to create a 50G expandable disk.***
\ncreate vdisk file=\"C:\\win7\\win7.vhd\" type=expandable maximum=50000
\nselect vdisk file=\"c:\\win7\\win7.vhd\"
\nattach vdisk
\nexit
\n<\/code>
\ncontinue the installation process, remember to select the newly created disk, the virtual one!<\/p>\nSetting up Windows boot manager to boot from an existing VHD<\/h3>\n
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\nC:\\>bcdedit \/copy {current} \/d \"My New VHD Option\"
\n*** copy the newly created {guid} by right mouse click and use that in the following command ***
\nC:\\>bcdedit \/set {guid} device vhd=[driveletter:]\\directory\\vhd filename
\nC:\\>bcdedit \/set {guid} osdevice vhd=[driverletter:]\\directory\\vhd filename
\nC:\\>bcdedit \/set {guid} detecthal on
\n*** the [] needs to be there like the following sample.***
\nbcdedit \/set {guid} device vhd=[C:]\\win7\\win7.vhd
\n*** to check out existing boot loaders, run the following ***
\nbcdedit \/v
\n*** to delete an existing vhd device ***
\n bcdedit \/delete {guid} \/cleanup
\n<\/p>\n","protected":false},"excerpt":{"rendered":"