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  1. #16
    hard drive errors in Disk utility.? APFS issues?
    MacInWin's Avatar
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    The version of DU you are running has to be the one on Mojave, not the High Sierra one. The older one doesn't have any capability with APFS, so it may well throw strange errors and try to "repair" the APFS drive inappropriately. The Mojave version of DU is capable of looking at APFS drives.
    Jake

  2. #17
    hard drive errors in Disk utility.? APFS issues?
    macgig's Avatar
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    booted from recovery partition and ran disk utility on Apple HDD (the internal hard drive), and all seems fine. no errors and it finished in seconds. little confused, I ran it by selecting Apple HDD... not the Imac HD under container disc one (Imac HD is the name of my hard drive)... not even sure why it says container disc one? its booted now and seems to be working, no reboots so far... .

    it seems to be the iMac HD in container disk one that was making the errors?..... no errors were found when scanning Apple HDD... ? Im confused for sure.
    Attached Images Attached Images
    Last edited by macgig; 12-16-2019 at 12:34 PM.


  3. #18
    hard drive errors in Disk utility.? APFS issues?
    macgig's Avatar
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    Quote Originally Posted by MacInWin View Post
    The version of DU you are running has to be the one on Mojave, not the High Sierra one.
    good to know thanks.


  4. #19
    hard drive errors in Disk utility.? APFS issues?
    ferrarr's Avatar
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    Run First Aid on each option under Apple HDD? The OS partition will take longer than a few seconds.
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.
    PS: When there is an accident or error, is the tool to blame or is the fool to blame?

  5. #20
    hard drive errors in Disk utility.? APFS issues?
    MacInWin's Avatar
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    Under AFPS what was known as partitions have been changed to Containers and Volumes. From your image, you have two Containers or two partitions at the hardware level; one named eDrive and the other Container disk1. In Container disk1 is one Volume, named iMac HD. The idea about Volumes is that all volumes in a Container share the space in the Container, so if you want a second drive, you can create a new volume without having to partition the drive. The two volumes then share whatever space is available in the Container automatically, again avoiding the necessity of invoking partitioning to change volume sizes. Overall, that function, combined with the efficiencies of APFS on SSDs, makes APFS a huge step forward. It doesn't work as efficiently on spinner drives, but it still has the advantages of not having to work with partitioning to make drive changes.

    Here is what it looks like on my SSD: Screen Shot 2019-12-16 at 12.03.39 PM.png
    Jake

  6. #21
    hard drive errors in Disk utility.? APFS issues?
    macgig's Avatar
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    my edrive was created by techtool pro. I deleted it wondering if it was causing problems since TTP 12 has some features that does not work with AFPS formatted drives, but it's been upgraded for Catalina. makes no sense to me.

    thanks for the pic that was helpful.


  7. #22
    hard drive errors in Disk utility.? APFS issues?
    MacInWin's Avatar
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    I would avoid using third party tools on APFS drives for at least a while. Apple has not released the full technical details on APFS so far, so developers are sort of working in the dark. Some things, like Carbon Copy Cloner, have figured out how to do what they do, but looks like TTP that manipulate the drive directly simply don't have the details to be made to work accurately for now. Maybe down the road Apple will release more about APFS and those tools can be useful, but for now, I'd avoid them, as I said.
    Jake

  8. #23
    hard drive errors in Disk utility.? APFS issues?
    macgig's Avatar
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    Quote Originally Posted by MacInWin View Post
    I would avoid using third party tools on APFS drives for at least a while.

    sounds like a good idea. thanks.


  9. #24
    hard drive errors in Disk utility.? APFS issues?
    chscag's Avatar
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    I second what Jake stated about third party disk tools and APFS. Avoid using Tech Tool Pro or Disk Warrior as neither one is currently compatible with APFS. Apple has been very close hold on releasing the specs for APFS so we can't really blame utility developers such as Tech Tool Pro if they are not compatible.

    Carbon Copy Cloner and SuperDuper work okay but for now only Carbon Copy Cloner can create the correct Recovery Partition for Mojave and Catalina.

  10. #25
    hard drive errors in Disk utility.? APFS issues?
    macgig's Avatar
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    thanks for all the help everyone. things seem ok for now. perhaps tech tool pro was causing the issues? not sure. something I'll keep an eye on.... when micromat sold me the tech tool upgrade, they didn't mention that it wont do certain things on APFS.... they just said its Catalina compatible so I figured I was ok to use it. False advertising there on their part IMHO.


  11. #26
    hard drive errors in Disk utility.? APFS issues?
    MacInWin's Avatar
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    I suspect that "Catalina compatible" means it is 64 bit, so it will run. Maybe "Catalina useful" should be a term to use?
    Jake

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