Doesn't Start, blinking folder

So I started my macbook up, and i got a grey screen. After trying several things (PRAMVRAM reseet, SMC reset) I took out the drive and placed it in an enclosure (USB) and it boots off of that fine. but then it doesn't when i put it back into the HDD cable internally. I got a new HDD and tried that, it wont even recognize it.
So I am assuming either the internal SATA cable is bad, or perhaps something worse has happened with the mainboard.
Any thoughts?
I have a 13inch MacBook aluminum intel, Jan 2009
Regards,
p

unfortunately I can't start the single user mode. It is always booting from the installation DVD. I tried mouse clicked at boot to eject it, but it doesn't work. Also I can't come to the Startup Volume menu by holding the option key. I always come to the installation menu. There I can't eject the disk from Disk Utility, because it is working on it. I also can't eject it using the eject key on the keyboard in the Startup Disk menu. From the Terminal I can't access my Hard Disk from /Volumes and therefore also can't access my user's home directory.

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    X.Org X Server 1.15.1
    Release Date: 2014-04-13
    X Protocol Version 11, Revision 0
    Build Operating System: Linux 3.14.0-4-ARCH x86_64
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    Initializing built-in extension MIT-SHM
    Initializing built-in extension XInputExtension
    Initializing built-in extension XTEST
    Initializing built-in extension BIG-REQUESTS
    Initializing built-in extension SYNC
    Initializing built-in extension XKEYBOARD
    Initializing built-in extension XC-MISC
    Initializing built-in extension SECURITY
    Initializing built-in extension XINERAMA
    Initializing built-in extension XFIXES
    Initializing built-in extension RENDER
    Initializing built-in extension RANDR
    Initializing built-in extension COMPOSITE
    Initializing built-in extension DAMAGE
    Initializing built-in extension MIT-SCREEN-SAVER
    Initializing built-in extension DOUBLE-BUFFER
    Initializing built-in extension RECORD
    Initializing built-in extension DPMS
    Initializing built-in extension Present
    Initializing built-in extension DRI3
    Initializing built-in extension X-Resource
    Initializing built-in extension XVideo
    Initializing built-in extension XVideo-MotionCompensation
    Initializing built-in extension XFree86-VidModeExtension
    Initializing built-in extension XFree86-DGA
    Initializing built-in extension XFree86-DRI
    Initializing built-in extension DRI2
    Loading extension GLX
    Loading extension NV-GLX
    Loading extension NV-CONTROL
    Loading extension XINERAMA
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    Anyway, if you can't start the mac other than from the CD it is most likely that there is some corruption on the disk. A good tool to use is Diskwarrior - it's a bit expensive but it's a staple of my toolkit - it's far more efficient than both Norton and Techtool.
    Another alternative - but probably more difficult. is to run from an 8.6 or 9.0 CD if you can find one - ebay?
    Just to say - the flashing question mark is the system's way of saying "I cannot find a valid start-up folder"
    Hopefully one of the above will get you going.
    The fact that you can start the mac up from the CD says that the mac itself is OK - I wonder if it was thrown away because the owner couldn't sort it out.

  • RT app doesn't start on power-up or re-boot

    Hi Again, Gang:
    This one is stumping me.  I've finished a cRIO application, and am now in the process of getting it ready for distribution.  The RT part of the app runs fine when I upload it from the host PC.  When I set the app to run at startup from NV RAM, it doesn't run.  Well, actually, to make matters worse--it DID run ONCE!  This morning I powered the cRIO, then did other things for a while.  I later looked at the unit and saw the user LED was flashing the sequence that says it's working.
    I've read through the troubleshooting stuff on the web site.  I've FTPd into the box and it looks like it's set up right.  The dip switches are all off.  I've waited for 10 mins to see if comes up after a while.  I've experimented with the FPGA upload settings to see if that's the issue.  (The RT won't get very far if the FPGA doesn't start)  Is it possible that something with the shared variable engine is holding it up?
    I'm about out of ideas.  I really hope that someone can give me some!
    Thanks in advance!
    Roger

    hi!!
     Have you got any solutions. it seems there some bugs in lv2010. we are facing similar problems. some times every thing works but after restart it shows some error(blinking of yellow LED on RT).some time variable are not being published .i am working with mutltiple target in a single project. i have tried all options like auto deploy variable(ON/OFF)
    seperate libraries for each target eventhough applications is similar for all targets. Just shareing my experience(pain)
    Regards
    Nageswar

  • The mother of all blinking folder/question mark posts.

    So here's another question mark/blinking folder post, only I've narrowed things down quite a bit. Let's start from the top.
    Powermac G4 quicksilver won't boot, and will only show the infamous blinking folder icon.
    -unplugged keyboard and mouse
    -unplugged SCSI interface
    -unplugged CD drive
    -tested memory, all ok
    -changed slot RAM uses
    -booted with X held down
    -booted with C held down
    -booted with SHIFT held down
    -booted with Option held down (brought up screen with two buttons, but no bootable devices)
    -Cleared PRAM
    -Cleared NVRAM
    -Replaced battery
    All of the usual tasks and no results. Dead drive, right? Nope. It won't boot through the HD, or any normally bootable CDs, but when I access Open Firmware (Control+Z), I'm able to view all of the HD's contents (dir hd:\) and all of the contents from whatever CD I put in there (dir cd:\). As it can read from both, but will boot from neither, I'm now thinking it has something to do with the main board.
    Has anyone else exhausted the blinking folder issue to the point I have, and still found results somehow? I'll be hooking it up to another mac via firewire tomorrow, but the unbootable CD makes me think that's not the solution. Any ideas on where to go from here? It's way out of warranty by the way.
    Thanks in advance for your time everyone!

    Hi-
    Welcome to Discussions!
    Next step, download a copy of the Apple Hardware test, and burn it to CD. I know, your QS isn't cooperating, so I hope you have access to another Mac.
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    Hopefully the machine will run the AHT fine, and you can run a hardware test. I'm hoping not, but could be the ATA controller on the MOBO.
    BTW- you didn't mention booting into single user and running fsck. See what that results in. Startup holding command+s. After the prompt type +/sbin/fsck -fy+ (that is a space between fsck and -fy). Press Return, and see what happens:
    http://docs.info.apple.com/article.html?artnum=106214

  • Blinking folder with question mark and a new hard drive: also installing Mountain Lion and 0 with a line through it appears please help?

    Okay so my harddrive failed in my 13" Macbook I used to have a WD scorpio black 250 gb for a while. I upgraded to a WD scorpio black 500 gb 7500 rpm hard drive. Okay so I installed the harddrive and ran my friends startup disc to learn that grey face discs are specific to that computer. The start up disc ran fine (minus the error stating it could not install OSX because its specific to another computer) and I looked in disc utility after installing the new harddrive and it said verified. I lost my startup disc and did not have another one. Using a friends mac I created a bootable USB drive with mountain lion on it, I plug it in and it comes up and when I choose to start up on the harddrive a 0 with a line going throguh it appears. If I do not start up with the USB or my friends startup disc then a blinking folder with a question mark appears. So my question is what could the problem be if a startup disc runs on a new WD harddrive and says under disc utility that its verified but the 0 with a line through it appears after I try to boot it with a flash drive containing mountain lion? WHats the issue here im completely lost now

    Sounds like some sort of power issue and now your drive is not working.
    You'll have to take this to Apple for repair.
    You should read this if you don't have recent backups of your data off the machine.
    My computer is not working, is my personal data lost?

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