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boot

  1. M

    Cannot Boot Into a BIOS-Based External Flash Drive

    Topic closed
  2. Q

    Install Mac OS X Lion on iMac 2017

    Hello,, I just bought a new iMac 20,5" 2017 model. I portioned my disk so I could install Mac OS X Lion on the other one. I made a bootable flash disk (Using disk utility, carbon copy cloner,...) using different tutorial so I guess the flash disk is fine. When I try to boot up from the flash...
    • qwent1
    • Thread
    • boot flash drive installesd.dmg lion
    • Replies: 20
    • Forum: macOS
  3. N

    Running High Sierra - But it keeps trying to and failing to reinstall on boot

    Hi guys, I actually posted this on the Apple support forums but it got absolutely no help, so I'm hoping the community we have here has a few ideas for remedying this issue. Currently running a Mid 2015, 15" MacBook Pro Retina (2.8Ghz i7, 1TB SSD, AMD Radeon R9 M370X 2 GB, Intel Iris Pro 1536...
  4. K

    2010 27' iMac won't recognize Internal HDD after 10.13 install.

    We have a 2010 iMac that wouldn't update to El Capitan so I decided to by pass it and make USB High Sierra and install. I booted from the USB and installed and erased the HHD. I chose the HDD I erased. It seemed to work but towards the end I reboot and a flashing fold with a "?" popped up. I...
    • kennfletch
    • Thread
    • boot imac won't startup
    • Replies: 1
    • Forum: iMac
  5. K

    MacBook Pro won't start

    I have an early 2011 MacBook Pro 13". I've made regular, heavy, daily use of it for years - with few problems and none that I can recall for the past 6 months. I used it last night, but this morning it would not wake from sleep and it will not boot. I've spent all day searching for...
    • kurt314
    • Thread
    • boot fail macbook pro start up
    • Replies: 1
    • Forum: MacBook Pro
  6. Y

    AutoBoot MacMini!

    Hi, I am searching on how to autoboot a MacMini (2014) on powerup. Not reboot, but actually boot. It's quite important because the mac is driving an installation and is difficult to access. I remember that was easy to achive in earlier models, and the new MacBookPro has it built in by default...
  7. Alinos94

    Dual-boot with a PC graphic card

    Hi everyone, First i want to apologize about my english. I'm french and better at speaking. Thank for the amazing ressources we can got in this place. Here is my story : I've got a Mac Pro 4.1 flashed in 5.1 with a PC GTX 980 by Gainward so no UI at startup. I've got Sierra with SIP enabled...
    • Alinos94
    • Thread
    • 980 boot camp dual geforce manager refind sierra sip windows
    • Replies: 6
    • Forum: Mac Pro
  8. M

    13" MBP boot to black screen

    Hi, looking for some advice. A friend of mine has asked me to take a look at his MBP which is booting up to a black screen. I've made some observations. 1. The computer is booting up to the password screen, verified by connecting to external display. 2. The screen is not dim it is black (off)...
  9. thewonders

    Yosemite won't boot without USB Install drive

    Not sure if this is the correct spot to post this, but here goes... I recently installed Yosemite and it's working well, but when I removed the Install USB Yosemite wouldn't boot. I must have forgotten to copy something when I installed Clover but I don't know what. Does anyone know what I need...
  10. O

    iMac (late 2009) with Samsung 840 SSD & High Sierra

    Hi guys, I've been running a late 2009 27" iMac with a Samsung 840 SSD (replacing the SuperDrive) on Sierra. I've had persistent problems for a while booting up to the 'prohibitory' symbol. Usually a second or third restart eventually boots successfully. Running Disk Utility reports no errors...
  11. d3vCr0w

    Will any of these Graphic Cards work with a Mac Pro 1.1 ?

    Hi people, thsis is my first post in the forum, I hope I get some help, thanks in advance. I recently got a first generation Mac Pro and I'm looking forward to upgrade the Graphics Card in order to be able to at least install Mavericks or Yosemite on it, since most software I need is not...
    • d3vCr0w
    • Thread
    • boot efi boot graphic card mac pro mac pro (2006) mavericks yosemite
    • Replies: 11
    • Forum: Mac Pro
  12. M

    Grey Screen on bootup

    Hi all, Hope you can help. I've got an iMac (27" Mid 2011) running Sierra. A week ago, i turned it on and was welcomed by the apple logo then half way through i got a grey screen which darkened slightly and just stayed like that. I tried everything to the best of my knowledge.. PRAM Reset...
  13. greybaron

    MBP 2015 unable to POST (BOOT)

    Hello, I have a very concerning issue with my Mac at the moment. It is a MacBook Pro 2015 13". Yesterday, I shut macOS down properly. Today I tried to power on the machine, and the power on chime sound played completely one time, and from there on looped the second half of the sound infinitely...
  14. NielsO

    MBA Late 2013 boot stuck

    Hi, I use my back-up/spare MacBook Air Late 2013 for testing the new MacOS High Sierra 10.13. After updating last monday to beta 4 for developers I experienced some boot problems. My MB has fire vault enabled so my drive is encrypted for other users. When I boot my MB the first thing I see is...
  15. N

    Deactivate W10 on internal drive and use it again on external SSD

    Hello, I was wondering how I could deactivate my activation key (it's a Windows Educational key I got from my Uni site) from my MBP and install W10 on an external SSD's partition, using the same key
  16. Kaikidan

    Is possible to make the first boot on the system by USB SSD?

    My Mac mini 2014 will come until the end of the week, I reserved a external USB3.0 SSD for it, can i start it by the first time already on the recover menu and install the system on the external SSD? because if not, i will need to boot from the internal HD, setup everything, then restart...
  17. Tipsy McStagger

    Can't create parallels VM from bootcamp

    Hi all, I have been running windows 10 in bootcamp and have had a VM from parallels for some time. It's been working well until recently I tried to boot the VM and it gave me an error (don't remember what it was). I deleted the VM thinking I'd recreate it but now I don't have the option to...
  18. Z

    I Can't Boot Into Linux

    OK, so, after I install Ubuntu (it could theoretically be Lubuntu, or Kubuntu as well), and everything is all supposedly well and good, it doesn't show up in the boot menu, it doesn't show up in Startup Disk, and I don't even know any commands or anything to manually start yaboot from Open...
  19. M

    Kernel panic at boot

    Hello! I've encountered a strange problem over the last months with my iMac late 2012. Sometimes its freezes at the booting screen, with error codes and text lines. I attach a photo of it. A restart can fix the problem and the iMac will run fine as it ever did with no issues. But...
  20. F

    New MacBook Pro - not loading on startup - autoreboot

    Hi Apple Fan, I have had already several mac, but this issue is the first time that is happening to me. I just got the new Macbook Pro, and on startup it happens that it doesn't log in but instead kind of crash and automatically reboot. You can try several time with no chance of logging in. I...
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