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-1

Try System Preference->Startup Disk-> choose your HD and set to restart. If it works, should shave off 30 seconds boot time.


1

In order to diagnose a hardware vs. OS error, try starting from external bootable media. The easiest way to do this is using a Linux Live CD. This allows you to start a totally separate, different and self-sufficient operating system. If you can get sound through that, it means the problem lies within your Mac OS X setup. You can download a disk image here: ...


0

You are most likely suffering from a bad SATA cable. This is a very common issue with any MBP so far, and often presents itself when someone decides to swap out their drive. You can check this by plugging in both the SSD and an external boot medium and then booting up with option key pressed. If you can see the external medium after some time but not the ...


2

1 - I think you need a keyboard to boot holding Alt (Opt) key, to show boot partition and disks. 2 - Yes, if you plug in a USB keyboard it's simply works. Mac OS X has the driver for standard keyboards.


1

To set the flag to boot in safe mode is the easiest: sudo nvram boot-args="-x" The I guess we have to do something with; rc.boot figures out the type of boot (Multi-User, Safe, CD-ROM, Network etc.). In case of a network boot (the sysctl variable kern.netboot will be set to 1 in which case), it runs /etc/rc.netboot with a start argument. and this; ...


0

If it's only a month old, you should still be within the full warranty window. Have you taken it to a Genius Bar?


0

It seems to me that you have an issue with settings stored in NVRAM. To reset your NVRAM to default settings (it's safe to do this), power on the system and simultaneously hold down the Cmd-P-Opt-R keys until you've heard not one, but TWO boot chimes. The second is usually louder. Then let them go. If that doesn't fix things, then you should get test the ...


2

Something killed your coreaudio drivers, or the sound hardware/motherboard. I would suggest to do following order of investigation (Fixes) Open Activity monitor and look for following: (use sort by "Audio") If found use terminal to reset the coreaudiod sudo killall coreaudiod Copy/paste following in Terminal to find out if the audio drivers are ...


-2

you wanna follow this link. I have successfully create bootable usb for windows from mac http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx


0

Same problem here. I have Macbook Pro, 15 inch, 2009 model. Was on Maverick, upgraded carefully (prepped and cleaned). Upgrade went fine, was able to use it a day, then no boot. I had installed an OWC SSD inside, put in a couple of years ago, and trim enabled. On trying to start, gray screen, no icon. Here is what I tried (along with help from Apple): ...


0

The snap shot of the distutil output helps, but I would have also included the output from the commands: sudo gpt -r show /dev/disk0 sudo fdisk /dev/disk0 Either command would give me the exact start and size of disk0s1. I have read that the EFI partition is not necessary to boot to OS X. My recovery flash drive does not have an EFI partition and I can ...


0

I have had this problem as well. Right now I am running my mac book with no battery and the charger in. This normally makes it work. I am starting to think that the battery is sliding around because the brackets attached to my battery broke off (screws that hold the battery down). I temperaily had a piece of metal wedged to keep it from sliding and this did ...


1

These symptoms imply an issue with your GPU. There is actually an ongoing class-action lawsuit against Apple regarding the AMD GPUs in the 2011 Macs (primarily MacBook Pros). I have seen the issue before in person; my sister's MacBook Pro just encountered it. The symptoms were just as you described: boot chime, Apple logo, spinning loader, grey screen, ...


0

First of all, I assume that you have enough battery power on the iPadWhen you see the apple icon on your ipad, hold the power- and home button for several seconds. The ipad will turn off and back on again. After this you can release the buttons when the apple logo is visible. When the ipad is still stuck on the loading screen, you could preform a DFU ...


0

I recommend a DFU mode and then restore.


-2

for more information, see this thread: https://jamfnation.jamfsoftware.com/discussion.html?id=12589


0

While hard drives are the most likely component to die in any computer, memory can and does fail from time to time. An "Early-2011" model will be nearly four years old now so it's worth considering an HDD replacement at some point (these were some of the first systems to feature SATA-III controllers so you will be able to take full advantage of current SSD ...


0

Unfortunately, there's no space for a SATA drive in the latest 15" MBPs (retina), so, unless you get an older model (pre 2012), there's no way of using your old drive in the new macbook. See, for example: https://www.ifixit.com/Device/MacBook_Pro_15%22_Retina_Display_Mid_2014


1

You can try boot your mac in recovery mode (hold command+R while booting), open Terminal, and running fsck to rebuild the btrees that hold the information of your files and directories structure. To rebuild the catalog btree: fsck -d -r /dev/disk0s2 Rebuild extents btree: fsck -d -Re /dev/disk0s2 Rebuild attributes btree: fsck -d -Ra /dev/disk0s2 ...


0

If you have your original discs load up the Applications Install disc and run the Apple Hardware Test from there. Look for memory faults. I doubt very much you have a firmware "bug", memory failure is much more likely and would explain the unusual hardware behaviour you're experiencing. I had the same model which I initially bought around 5 years ago, this ...


0

Agree with Tetsujin about doing an SMC reset. I recently had the same issue - I had hard-powered-off the computer in the middle of booting, and my system would then just remain black-screened at boot. Resetting the SMC brought everything back to normal (able to do Recovery Mode, Choose Boot Disk or boot from internal drive as usual). However, for me to ...


0

All I can think of that you may have missed in the 'standard suite' of things to try first would be Reset SMC... Shut down the computer. Unplug the computer's power cord. Wait fifteen seconds. Attach the computer's power cord. Wait five seconds, then press the power button to turn on the computer.


0

From your describe("progress bar typically showing during updates"). sound like the system is updating and doing something. Click "⌘L" will show you installation log, you can check what's going on



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