Blog/Parallels/Convert Real HD: Difference between revisions

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Here is how to create a Mac VM from a bootable HD.
Here is how to create a Mac VM from a bootable HD. You must have blank storage large enough for 2x the size of the HD you're creating an image from. 1 to create a disk image from the HD, and 1 to hold the final VM from the image.


# create a dmg of your HD (using Disk Utilities) (required because Parallels for some reason does not let you directly mount the disk hardware, but it DOES let you mount a DMG)
# create a dmg of your HD (using Disk Utilities) (required because Parallels for some reason does not let you directly mount the disk hardware, but it DOES let you mount a DMG)
# create a new VM from your recovery partition
## note this image must be a DMG (or maybe a DVD master?), sparseimage won't work cuz Parallels won't mount i
## note this DMG must be "MacOS Extended" format, if you're creating a Mojave disk
# on the origin computer, create a new VM from your existing recovery partition
# when it gets to the installer, "Stop" the VM
# when it gets to the installer, "Stop" the VM
# configure the VM
# configure the VM
## select "Hardware->Boot Order"
## select "Hardware->Boot Order"
## Check "Select boot device on startup"
## Check "Select boot device on startup"
# if your disc image is > 64GB, do the next steps
## select "Hardware->Hard Disk", click Advanced
## press the "+" key at the bottom
## in the next screen, set the HD size to 1TB or whatever
## select "Hard Disk"
## in the next screen, be sure "New Image File" is selected
## make the size correct
## check "expanding disk"
# start the VM
# start the VM
# when it gets to the boot screen, hit Escape
# when it gets to the boot screen, hit Escape
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# press "1" to start booting, and let it fall thru to booting to Recovery which is all that's available now
# press "1" to start booting, and let it fall thru to booting to Recovery which is all that's available now
# when you get to the installer, go into Disc Utilities
# when you get to the installer, go into Disc Utilities
# you should see your disc image AND the blank volume (plus the OTHER blank one if you created one > 64GB)
# you should see your disc image AND the blank volume
# select the volume INSIDE the disc image and pick "restore" on the right, the disc image should be in the "source"
# select the volume INSIDE the disc image and pick "restore" on the right, the disc image should be in the "source"
# drag the blank HD (or the larger one you created) to the "Destination"
# drag the blank HD (or the larger one you created) to the "Destination"
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# this will copy the disc image into the VM!
# this will copy the disc image into the VM!
# when done, quit the installer,  
# when done, quit the installer,  
# it will ask if you want to set your startup disc
# it will ask if you want to restart or set your startup disc
# click YES, pick your new startup disc (not the disc image), and click OK
# click "Choose Startup Disk", pick your new startup disc (not the disc image), and click OK
# should boot without issue into your new VM!
# should boot without issue into your new VM!
# you may eject the disc image from the VM
# you may eject the disc image from the VM
# if you created a larger disk:
## shut down the VM
## then configure it again
## delete the smaller "Hard Disk"
# TADAA!
# TADAA!

Latest revision as of 17:46, 21 February 2024

Here is how to create a Mac VM from a bootable HD. You must have blank storage large enough for 2x the size of the HD you're creating an image from. 1 to create a disk image from the HD, and 1 to hold the final VM from the image.

  1. create a dmg of your HD (using Disk Utilities) (required because Parallels for some reason does not let you directly mount the disk hardware, but it DOES let you mount a DMG)
    1. note this image must be a DMG (or maybe a DVD master?), sparseimage won't work cuz Parallels won't mount i
    2. note this DMG must be "MacOS Extended" format, if you're creating a Mojave disk
  2. on the origin computer, create a new VM from your existing recovery partition
  3. when it gets to the installer, "Stop" the VM
  4. configure the VM
    1. select "Hardware->Boot Order"
    2. Check "Select boot device on startup"
    3. select "Hardware->Hard Disk", click Advanced
    4. in the next screen, set the HD size to 1TB or whatever
  5. start the VM
  6. when it gets to the boot screen, hit Escape
  7. now you're in the "select a drive" text screen
  8. in the "Devices" menu pick "CD/DVD->Connect Image..." and select your disc image you made in step 1
  9. press "1" to start booting, and let it fall thru to booting to Recovery which is all that's available now
  10. when you get to the installer, go into Disc Utilities
  11. you should see your disc image AND the blank volume
  12. select the volume INSIDE the disc image and pick "restore" on the right, the disc image should be in the "source"
  13. drag the blank HD (or the larger one you created) to the "Destination"
  14. click "restore"
  15. this will copy the disc image into the VM!
  16. when done, quit the installer,
  17. it will ask if you want to restart or set your startup disc
  18. click "Choose Startup Disk", pick your new startup disc (not the disc image), and click OK
  19. should boot without issue into your new VM!
  20. you may eject the disc image from the VM
  21. TADAA!
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