Has anyone installed El Capitan w/o using USB drive?

Discussion in 'MacBook' started by 212rikanmofo, Jun 8, 2015.

  1. 212rikanmofo macrumors 68000

    Jan 31, 2003
    For those with the new 12" RMB, how did you install El Capitan w/o the use of a USB flash drive? Is it possible to create a temporary 2nd partition and install the installation image on there, reboot and select that 2nd partition and update to El Capitan, and when all is finished, delete the 2nd partition entirely?

    If so can somebody please explain to me the steps needed in order to do it this way?
  2. thewusman macrumors regular

    Aug 8, 2013
  3. blackie36 macrumors newbie

    Apr 29, 2006
    Yep - I installed as an upgrade from Yosemite - no problems at all. Seems to be running very well - so far no big issues (other than some display corruption in the latest build of the Office 2016 demo)

    Running beta software on a beta operating system :)

    As far as I can see the only way to do a clean install would be using a USB drive or possibly a Netboot install from an OSX server.
  4. Geert76 macrumors 68000

    Feb 28, 2014
    the Netherlands
    running DP1 El Capitan on my MacBook. I am very surprised how smooth it is. Animations and switching through Apps is def faster! Hardly any lag.

    And FINALLY I have got my fast reliable WiFi connection back (after a lot of speed drops in Yosemite 10.10.3)
    For a first DP I am very very impressed!
  5. PBG4 Dude macrumors 68030

    PBG4 Dude

    Jul 6, 2007
    Basically, you'll need to use Disk Utility to resize your first partition and create your second one. Then install El Capitan to that second partition.

    After the install, you can hold the option key at boot to pick which partition you want to boot to. (Alternatively, go into System Preferences --> Startup Disk, and select which partition to boot from upon restart.)

    Once you're done playing with the beta, go back into Disk Utility, delete your test partition, and resize your main partition to get your space back.

    One thing, you'll need to hold CMD+R on boot to go into your recovery partition and use Disk Utility from there. You can't resize the partition you're currently booted into.
  6. Jetcat3 macrumors 6502a

    May 3, 2015
    Wait, can I install the beta of El Capitan or do I have to wait until July? Thanks.

  7. Dayv macrumors 6502

    Aug 18, 2009
    It's a developer preview only for now, so you need to be a registered developer to access the beta.
  8. Queen6 macrumors 604


    Dec 11, 2008
    Flying over the rainforest at dawn - Priceless
  9. keviig macrumors 6502

    Jun 7, 2012
    Or just head to any torrent site and download it there. I did, and it is working great! No need for USB either, just start the installer and it does the rest for you. I have a Time Capsule backup of 10.10.4 in case i get any problems, but none so far.
  10. benna macrumors regular

    Jun 11, 2009
    Just installed El Capitan on my 1.3Ghz version. Works perfectly. There are a lot of bugs though. Don't install it if its your main machine.
  11. mikeray macrumors regular

    Jan 17, 2006
    Brooklyn, NY
    You can't have it both ways!
  12. thadoggfather macrumors G4


    Oct 1, 2007
    would benna argue it is perfectly buggy? :D
  13. KPOM macrumors G5

    Oct 23, 2010
    I created a second partition in Disk Utility. Because I wanted to replicate my current setup as close as possible, I cloned my existing drive onto the new partition using Carbon Copy Cloner, then booted into that partition, and downloaded the El Capitan developer preview. However, I did notice that when I booted back into the main partition, I got a kernel panic the first time I rebooted. That happened to me before when I booted into an external drive that I had cloned using Carbon Copy Cloner, so I think it might have something to do with that.
  14. Dayv macrumors 6502

    Aug 18, 2009
    If you choose to do this, I hope you at least do an md5 checksum against a known good version to make sure you haven't gotten a copy that's been tampered with.
  15. No-Me macrumors 6502a

    Jul 3, 2011
    I thought it was too buggy so I uninstalled it after trying it for a couple of days. Maybe I'll do another attempt when they are at Beta 3 or so.

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14 June 8, 2015