Q: "No bootable device -- insert boot disk and press any key"

Hi LoneStrider,

In case you didn't find solution yet, I wanted to help you out with this proposal:

First step, turn on your Imac and hold option key. Startup Manager should appear offering at least one choice or more to click on.  http://support.apple.com/kb/HT1310

Second step, Choose OS X partition or disc and it should boot up your OS X.

Third step, once your system is on (hopefully), go to System Preferences and chose Startup disk. It must be unlocked.

It will be written above, Select the system you want to use to start up your computer

click on your IMac OS X and click restart button on right side.

This restart would help your OS X to return its default mode without interfering with other Boot Camp / Windows partition/s.

Just press both (option+command) together , and while u r pressing on them , press respectively r,t,y,u,i,o,p

Then your mac will open normally

i faced this problem , and i went to apple agency then they tough me this method

Si el problema no se resuelve, prueben con una imagen iso original de windows, ya que los piratas no son detectados por bootcamp, saludos

If the problem persist, try with a windows original iso, greetings

^_*

no bootable device insert boot disk and press any key mac

http://www.youtube.com/watch?v=0D4C-A-qIrk

AhmadAseeri

no bootable device insert boot disk and press any key mac

Hi,

Has anyone found out how to fix this ? I have the same problem. I turn my IMac on and i get a white screen no chime, give it a couple of minutes and it comes to a black screen with no bootable device. Now i have tried all the combination like Alt, CMD and R etc but nothing seems to be happening, like its ignoring the keyboard but ive taken the keyboard out and plugged it into my Macbook pro and it works so its not the keyboard.

I'm thinking of taking it into the store but thats in town and thats a long journey with a 22' IMac. Can anyone help ?

Thanks Barnett94

the answer provided by user zkavedi worked for me, I don't know how this started, but i have a slight suspicion it may be because I bought a seagate wireless hard drive and that had me install a "PARAGON NTFS FOR MAC" so I'm thinking that had something to do with it.

Pressing alt-command-p-r until I heard the third chime worked for me. I had to connect a usb keyboard to do this though. The keyboard on my macbook would not work, I only got this to work after connecting a usb keyboard.

Thanks  ZKAVEDI your solution worked like a charm.

you just spared me a mild heart attack!  many thanks, and best wishes.

-rex

Great solution

Thanks!

I had the same issue, and it happened just after I try (and failed) to install a Paragon disk as my disk for the Time Machine. I also had the "PARAGON NTFS FOR MAC"  installed.

I today found and tried this manipulation which saved my life: when I got the same error message I was like "OMG noooo!"

On startup keep pressing COMMAND + ALT + P + R to reset the NVRAM of your mac (basically it cleans the Bios).

Let the system restart 2 or 3 times (you know with the famous "Baaaam" Mac sound), to make sure it is REALLY clean.

This should sort things out

It worked for me, after trying so many manipulations.

Well, OK. Pop open the Mac. Then unhook the hard drive cords BUT keep the HDD's IN (don't worry, the iMac will REALLY realize that the there are no bootable things) then boot the bad boy UP! Then it will display something (IM NOT COMPLETELY SURE) this: No device in system, booting from ram........ then the No bootable device found, blah blah whatever stuff THEN keep it boot up then pop it back open STILL BOOTUP then hook up only 1 (if Time Machine installed) then click any key. If it appears again, reboot and click COMMAND + ALT + P + R. If that does not work, get your iMac serviced.

Garret S.

YYeah that took me out that black screen back to original thank you so much for the help!

now seriously my MacBook Pro is back & Working. I'll just have an expertly install Windows for me if needed.