External hard drives don't show up in El Capitan: UNRESOLVED

Discussion in 'OS X El Capitan (10.11)' started by anp27, Jun 11, 2015.

  1. anp27 macrumors regular

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    Jan 17, 2011
    Location:
    Brooklyn, NY
    #1
    I've tested this with 2 external hard drives I own, both drives do not show up when plugged in. One is USB and the other is Firewire 800. Anybody else seeing this?
     
  2. SlCKB0Y, Jun 11, 2015
    Last edited: Jun 11, 2015

    SlCKB0Y macrumors 68040

    SlCKB0Y

    Joined:
    Feb 25, 2012
    Location:
    Sydney, Australia
    #2
    We need more info to help.

    Is Finder > Preferences > General > Show Items on the Desktop > External disks checked?

    If it IS then check that the drive is being mounted. In the terminal:
    Code:
    ls /Volumes/
    or

    Code:
    diskutil info -all
    (And look for "Mounted Yes" under your volume

    If its NOT listed there then check it is being recognised. In the terminal:
    Code:
    diskutil list
     
  3. SG- macrumors regular

    SG-

    Joined:
    Jun 8, 2015
    #3
    from the release notes:

    Known Issues

    • USB storage devices, including internal SD card readers, may become unavailable after system sleep and require either re-plug or restart to recover.
    • USB input devices may become non-functional on some Macs after several days.
    • USB 1.0, 1.1 and older 2.0 devices may not function.
     
  4. anp27 thread starter macrumors regular

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    Jan 17, 2011
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    Brooklyn, NY
    #4
    Aaaannnd a simple Restart has fixed the issue, yay! Thanks SICKB0Y and SG-!
     
  5. crjackson2134 macrumors 68020

    crjackson2134

    Joined:
    Mar 6, 2013
    Location:
    Charlotte, NC
    #5
    I have mine set that way on purpose. You shouldn't have needed a reboot for it to take effect though.
     
  6. parzianello macrumors newbie

    Joined:
    Mar 3, 2015
    #6

    My external drives and usb things are not showing up ( only my Time Machine hdd and iPhone and iPad)
    I did those steps and here what it shows on my not visible samsung 500gb
    what can I do?

    thanks
     
  7. anp27 thread starter macrumors regular

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    Jan 17, 2011
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    Brooklyn, NY
    #7
    Just try a simple Restart, that's what helped me.
     
  8. parzianello macrumors newbie

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    Mar 3, 2015
    #8
    Already did. Nothing changed
     
  9. anp27 thread starter macrumors regular

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    Jan 17, 2011
    Location:
    Brooklyn, NY
    #9
    Hmmm. I really don't know then. USB devices are known to be problematic in El Capitan though. Sorry I couldn't be more helpful.. maybe someone else might be able to chime in?
     
  10. parzianello macrumors newbie

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    Mar 3, 2015
    #10

    perhaps you could give me a little help pulling off the "resolved" from the title?
     
  11. anp27 thread starter macrumors regular

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    Brooklyn, NY
    #11
    OK, I changed RESOLVED to UNRESOLVED.
     
  12. dannsh macrumors newbie

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    Sep 4, 2001
    Location:
    Clinton, MT
    #12
    I have a MOTU Timepiece AV. The audio/Midi setup does not recognize the Timepiece so that is the USB issue mention in there release notes. Hope the next release takes care of the USB ports.
     
  13. Mentalow, Jul 3, 2015
    Last edited: Jul 3, 2015

    Mentalow macrumors newbie

    Mentalow

    Joined:
    Jun 29, 2015
    #13
    My USB 2.0 and USB 3.0 2TB hard drives (Western Digital / Silicon Power) are capricious too. Sometimes they are not detected, sometimes they drop, ... Whatever. Apple deeply modified the USB drivers, there're many weird things in system logs. Wait and see.

    If your external hard drive is encrypted, you may have to use Disk Utility & unlock it - it will then be mounted. MacOS 10.11 does not always prompt me to do so.
     
  14. Shirasaki macrumors 603

    Shirasaki

    Joined:
    May 16, 2015
    #14
    I have three disks. One is formatted with NTFS, and encrypted using bitlocker. Thus mac would never recognise it.

    The other one is formatted with hfs+, and part of this disk have been reserved for encrypted time machine backup. Mac can recognise it with no issue, and windows can access not encrypted partition.

    The third one is formatted with NTFS. No bitlocker, and cannot be encrypted with mac.

    All three disks use normally, under either mac or Windows.
     
  15. mikezielonka macrumors newbie

    mikezielonka

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    Jul 5, 2015
    #15
    I am having the same issue as you guys. I have a seagate USB3 external and no matter what I do, I can't get it to show up so that I can unlock it. :/
     
  16. parzianello macrumors newbie

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    Mar 3, 2015
    #16

    Yeah I have a Seagate usb3 and a Samsung usb2
    only the one with time machine enabled is the one that works
     
  17. Mentalow macrumors newbie

    Mentalow

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    Jun 29, 2015
    #17
    Please read my post above (#13). As I said, you may need to unlock it manually using the Disk Utility.
     
  18. parzianello macrumors newbie

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    Mar 3, 2015
    #18
    none of them are encrypted
     
  19. parzianello macrumors newbie

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    Mar 3, 2015
    #19
    Anyone have updated to the 3rd version released today? If so, any news?
     
  20. SG- macrumors regular

    SG-

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    Jun 8, 2015
    #20
    the notes for DP Beta 3 still mention this:

    "Some USB devices may not mount."
     
  21. parzianello macrumors newbie

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    Mar 3, 2015
    #21
    ;/ what the heck did they changed for this to happen!
     
  22. SG- macrumors regular

    SG-

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    Jun 8, 2015
    #22
    i would guess some sort of USB subsystem re-write to handle future usb-c functionality along with optimizations for performance with the amount of data that will be going through USB stuff in the future.
     
  23. parzianello macrumors newbie

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    Mar 3, 2015
    #23
    Hey I just updated to DP 3 and all my external drives are working perfectly ;D wish the same for you all.
     
  24. cyclingplatypus macrumors 6502a

    cyclingplatypus

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    Mar 15, 2007
    Location:
    Earth
    #24
    I have a firewire drive that is attached to the thunderbolt adapter that unmount/remount itself - works fine on an non-updated machine.
     
  25. SG- macrumors regular

    SG-

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    Jun 8, 2015

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