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Question

script for detecting hd partition type and wiping out/re-creating

  • November 11, 2014
  • 3 replies
  • 21 views
ImAMacGuy
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Anybody have a script that detects if a hard drive is partitioned using Core Storage or regular partitions, then delete them (recovery + main hd partition) and re-create as one drive?

I have a script that I use for regular drives that I converted to a .app that the techs use to partition non-CS/Fusion drives, but the CS/Fusion drives need to be re-partitioned manually. Having one script that does both would be very helpful as it seems 10.10 randomly decides when to use CS vs regular partitions.

i found this https://bryson3gps.wordpress.com/tag/corestorage/, but my script-fu skills are not good enough to understand fully what's going on with it.

    3 replies

    T
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    • tkimpton
    • Honored Contributor
    • November 12, 2014

    https://jamfnation.jamfsoftware.com/article.html?id=228

    Can just erase the partition using disk utility. No need to make things difficult.

    ImAMacGuy
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    • ImAMacGuy
    • Author
    • Esteemed Contributor
    • November 12, 2014

    we've had mixed results. when we just do erase partition we get weird gremlins in the systems. random crashes, things not starting up. I see it time and time again, the tech forgets to do the partition wipe and reload (especially when going to a newer os than was previously on the machine), they bring ti to me because XYZ is happening, and I ask if they wiped the partitions and they said no. they go back and wipe it, and everything works.

    granted if they don't bring it to me first, I don't know to look for the issues, so it may be working more than I realize...

    bentoms
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    • bentoms
    • Hall of Fame
    • January 4, 2015

    @jwojda, yea we had fun with CS & partitioning. I've written it up: https://macmule.com/2015/01/02/casper-imaging-corestorage-volumes/

    If using Fusion drives you'll need to look at the part that creates 2 Logical Volume Groups with a volume under each.. But, in doing so.. I'll don't think you'll be getting the benefits of Fusion drives.

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