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question mark folder

  1. A

    how to check system integrity ?

    I was wondering if there is still a tool somewhere to check for system integrity, to verify that the system read-only partition has not been modified for instance, and if it has, recover to a previous snapshot. Any ideas ? Back in the days if the system would fail somehow one of the...
    • antoine23
    • Thread
    • question mark folder system integrity protection
    • Replies: 6
    • Forum: macOS
  2. A

    silly question, how can macos with read-only system break ?

    Since Catalina the system is on a separate read-only volume. So, technically, it should not break, ever, right ? Are there reports of system breaking (not booting or whatever) ? And if it does, how ? I mean, how could it possible break software-wise ? The only thing I could guess is a failed...
    • antoine23
    • Thread
    • question mark folder
    • Replies: 6
    • Forum: macOS
  3. D

    iMac with no OS and not working keyboard connection

    I have an old iMac vintage 2009. While my son had it he somehow wiped the OS from it. Now it starts with the question mark folder. To make matters worse, I can't seem to get it to respond with a wireless keyboard, so I'm not able to do anything with it. Any ideas about how I can reinstall...
    • davshev
    • Thread
    • imac keyboard no working question mark folder reinstall os
    • Replies: 6
    • Forum: Early Intel Macs
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