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04-17-2009
| #1 (permalink) |
| | Compacting a virtual machine I'm using MS Virtual PC v5.3.582.27 with several virtual machines. I have noticed that if I install a large program on the virtual machine, the size of the file increases as expected, but if I then remove the same program the file size doesn't decrease. When this happens, is there a way to compact the virtual machine file to get rid of the unused space? Thanks! John -- Please reply in this newsgroup. I never post my true email address to prevent spam. Thank you. |
My System Specs |
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04-17-2009
| #2 (permalink) |
| | Re: Compacting a virtual machine On Fri, 17 Apr 2009 12:46:37 -0500, John <notme@xxxxxx> wrote: Quote: >I'm using MS Virtual PC v5.3.582.27 with several virtual machines. I >have noticed that if I install a large program on the virtual machine, >the size of the file increases as expected, but if I then remove the >same program the file size doesn't decrease. When this happens, is there >a way to compact the virtual machine file to get rid of the unused >space? Thanks! > >John :-) 1. defrag the VM's hd (inside VM) 2. mount the precompactor ISO and run inside the VM(precompactor.exe), ISO is in the C:\Program Files (x86)\Microsoft Virtual PC\Virtual Machine Additions 3. shutdown the VM and on the host use the virtual disk wizard to compact the disk -- Cheers, Steve Jain, Virtual Machine MVP http://vpc.essjae.com/ |
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04-22-2009
| #3 (permalink) |
| | Re: Compacting a virtual machine Steve Jain [MVP] wrote: Quote: > On Fri, 17 Apr 2009 12:46:37 -0500, John <notme@xxxxxx> wrote: > Quote: >> I'm using MS Virtual PC v5.3.582.27 with several virtual machines. I >> have noticed that if I install a large program on the virtual machine, >> the size of the file increases as expected, but if I then remove the >> same program the file size doesn't decrease. When this happens, is there >> a way to compact the virtual machine file to get rid of the unused >> space? Thanks! >> >> John > Yes, you would use the tools provided with VPC to compact your VHD. > :-) > > 1. defrag the VM's hd (inside VM) > 2. mount the precompactor ISO and run inside the VM(precompactor.exe), > ISO is in the C:\Program Files (x86)\Microsoft Virtual PC\Virtual > Machine Additions > 3. shutdown the VM and on the host use the virtual disk wizard to > compact the disk > "Before you compact this virtual hard disk, you must zero out free space on it with a third-party tool that you install on the guest operating system." Is this what the precompactor did? If not, what is the third-party tool it is referring to? Thanks! John -- Please reply in this newsgroup. I never post my true email address to prevent spam. Thank you. |
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04-22-2009
| #4 (permalink) |
| | Re: Compacting a virtual machine >When I get to step 3, the virtual disk wizard gives me this warning: Quote: >"Before you compact this virtual hard disk, you must zero out free space >on it with a third-party tool that you install on the guest operating >system." >Is this what the precompactor did? If not, what is the third-party tool >it is referring to? Thanks! -- Bob Comer On Wed, 22 Apr 2009 09:39:41 -0500, John <notme@xxxxxx> wrote: Quote: >Steve Jain [MVP] wrote: Quote: >> On Fri, 17 Apr 2009 12:46:37 -0500, John <notme@xxxxxx> wrote: >> Quote: >>> I'm using MS Virtual PC v5.3.582.27 with several virtual machines. I >>> have noticed that if I install a large program on the virtual machine, >>> the size of the file increases as expected, but if I then remove the >>> same program the file size doesn't decrease. When this happens, is there >>> a way to compact the virtual machine file to get rid of the unused >>> space? Thanks! >>> >>> John >> Yes, you would use the tools provided with VPC to compact your VHD. >> :-) >> >> 1. defrag the VM's hd (inside VM) >> 2. mount the precompactor ISO and run inside the VM(precompactor.exe), >> ISO is in the C:\Program Files (x86)\Microsoft Virtual PC\Virtual >> Machine Additions >> 3. shutdown the VM and on the host use the virtual disk wizard to >> compact the disk >> >"Before you compact this virtual hard disk, you must zero out free space >on it with a third-party tool that you install on the guest operating >system." >Is this what the precompactor did? If not, what is the third-party tool >it is referring to? Thanks! > >John |
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