Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

disk utility

  1. L


    Hey guys I was trying to reboot my Apple MacBook Air 7.2 to a factory reset and I think I deleted the harddrive? Any help would be good.
  2. macrumor2018

    Best external HD for Time Machine.

    My Seagate OneTouch SSD 2TB just stopped working (I've been using it with Time Machine for the last 2.5 years) and whenever I plug it into my mac, the whole finder app stops responding. Nothing in disk utility appears, either. Immediately as soon as I unplug it, everything goes back to normal...
  3. Alvin777

    Which APFS Do You Format Time Machine Disk With?

    Hi, which is the best APFS format is best for a Time Machine backup? Is it the: APFS, APFS (encrypted), APFS (case-sensitive), APFS (case-sensitive, encrypted)?
  4. D

    Two Macintosh HD icons-Error 69716,Error 69845

    I apologize if this has been posted for the umpteenth time. I'm very confused on how to approach this, even after reading previous topics on here and the apple forums. Running Sonoma 14.0 on a 2020 iMac (3.8 GHz 8-Core intel i7) Disk utility fails in recovery mode and on desktop. I have two...
  5. W

    Disk Utility in Yosemite vs newer release

    Why is it that in the Yosemite version you can partition a drive without erasing it first while on newer releases, you have to first erase the drive then partition afterwards? It seems to me that the only good thing about Disk Utility post-Yosemite is you can immediately set a partition scheme...
  6. GoGrater

    Hardware Encrypted Kingston DataTraveler Locker+ G3 (DTLPG3) used to work on Monterey, but not anymore

    Hello all. Please bear with me. This is pretty important to me and I’ll try my best to describe the situation. CURRENT: - Mac Studio, Monterey 12.6.8 - 3 Kingston DataTraveler Locker+ G3 (model DTLPG3) hardware encrypted drives. All 3 drives have been updated/formatted on the Mac Pro with the...
  7. H

    Getting "could not mount disk after after erase" using disk utility on a usb drive

    I used a 3 pass erase on a usb drive, and in the result of the erase, it states: " Mounting disk Could not mount disk4s1 after erase Invalid disk. Operation failed… " Now the usb drive seems to be empty, so am I to assume the erase as in fact successful given the "after erase" part? If so...
  8. B

    Disk utility freezes when clicking internal hard drive

    I started receiving frequent requests by accountsd etc to access my login keychain, so I decided to run a First Aid check on my Macbook Pro 14 inch 2021 with Monterey v12.2.1. My laptop is 6 months old. Disk utility screenshot: I tried running First Aid while selecting Container disk3 and I...
  9. G

    can't extend partition

    I just installed monterey. The history, I was running Mojave on a mac OS journaled ssd I needed to upgrade, but could not because of the format of the drive 125gb (1tb packed up 4 weeks ago) I cleaned up as much as I could and partitioned the drive with a 50GB APFS partition. Downloaded monterey...
  10. 6

    Disk Utility problem when formatting external SSD:s or faulty drive?

    Sorry for my bad English. I have three external ssd drives. 1 samsung t7 shield 2tb 1 samsung t7 shield 1tb 1 samsung t5 500gb I can without any problems format the t7 shield 2tb and the t5 500gb (using APFS / GUID). But when I try to format the t7 shield 1tb, using the same APFS /...
  11. bear_in_mind

    Wiping external HDD's with Apple Disk Utility not working

    I've been trying to wipe several HFS+ formatted external HDD's with Apple Disk Utility, but it's not working. The drives were in working order before attempting erasure (in preparation to donate the drives to a non-profit). They still mount, but they began the erase procedure for about an...
  12. J

    Monterey update failed

    Hi all! I updated my iMac from Sierra to Catalina and then wanted to update it to Monterey. It got stuck at the point where it cannot select a startup disc. I somehow got pass that message, but then the update failed and how when I start it there is a flashing question mark and the text...
  13. G

    Did my MacBook die?

    Hello So basically yesterday my max turned off due to 0% battery. Ok, fair. Charged jt furring the night and turned it on today. When I turned it on, it was completely frozen on the desktop. So I forced turned it off… After that, black screen of the death. Managed to get it to recovery after...
  14. S

    Booting/Partition problem 2015 MacBook 2015

    Hi, I have a MacBook Pro 2015 that was running Mojave, and am having a boot problem. When I turn the computer on, I get the Mac logo, the progress bar makes it a third of the way across the screen, and then shuts off. I've tried a few things to fix this so far, but nothing's working so far. I...
  15. Algr

    Raid sometimes mounts.

    Hi Everyone! So I put three of my old drives together in a JBOD raid. (8+8+4TB) I set it to be the Time Machine backup for my new drive. (16 TB) Everything seemed to work fine, and it copied everything to the backup. I was even able to copy back some test files. But now it usually refuses...
  16. Sickminecraft45

    Burn failed

    Hi, I have got a Power Mac G5 running Mac OS X 10.5.8 and I have upgraded the original Pioneer optical drive to an NEC one that supports dual-layer DVDs. I'm trying to make a bootable Mac OS x 10.5 DVD and I'm using Verbatim 8x dual-layer DVDs and the disk utility says burn failed! I have rad...
  17. R

    Does anyone know how to fix error -69845 in disk utility?

    I keep getting fail errors when I run disk utility on "data" (see attached screenshot). File System verify or repair failed. : (-69845) I've tried in normal mode, safe mode and recovery mode. Any clue how to fix this without wiping my operating system? Apple doesn't seem to recognize this...
  18. robertcoogan

    LaCie external HD not responding

    I have a 5TB LaCie external hard drive, formatted HFS+. This HD recently stopped mounting entirely, first only popping up Disk Utility (it was all I used to check the HD at the time), but then dropping out entirely. It no longer mounts - so it's not visible in Disk Utility or Disk Drill at all...
  19. E

    How long should First Aid take?

    I have an external HDD (4TB G-Drive) 2 or 3 years old. I use it mainly for TM backups, and also for archiving some stuff. DriveDx rates it as "Average 52.1%". It seems to function just fine. But I've become aware recently that there's a user ID mismatch between my current system (and more recent...
  20. T

    Cannot erase a volume in recovery mode

    I erased a Fusion Drive in an old iMac from Recover mode (lost passwords) and was then installing from a TimeMachine backup, starting from Recovery Mode. After copying over about 130Gb, for some reason the iMac shutdown. I tried restarting, but it shuts down midway during boot. Then I went...