Macbook pro cant boot from external dvd device please help !!!!

hello everyone please help me i have macbook pro 2011 core i5 version
i just installed 2.5 ssd as second hdd
i cant boot from external dvd device to install any os the external dvd keeps on spining and mac is just thinking it doesnt show press any key to install
it shows the device when a boot into mac parition
i am trying to install windows on origianl 500 gb hdd and linux on ssd
but not luck
the external dvd drive works i pluged into my pc and it works
please help thansk in advance
200 gb mac
300 gb windows
120 ssd linux

I do not know about Disk Warrior but if you have a compatible OSX on an external HDD you certainly can boot the MBP. Use startup manager:
https://support.apple.com/en-us/ht1310
Ciao.

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My macbook pro only boot from external drive

Hi, my macbook pro had a problem, some day way extremely slow, and i restarted it, when it was booting the little apple turned into a a circle with a slide cros and then into a folder ... and then into the apple.. and so.. many times... i tried to start in text mode.. and it said fail loading kernel..
and i tried everythin but couldnt make it work... until i extracted my hard drive, and plugged it in the same macbook pro using a usb adapter... and it worked.... does anyone knows what the **** is going on??.. and how can i fix it.. is a middle 20009

Did you run fsck while booted into single user/verbose mode?
Run Repair Disk:
First check the S.M.A.R.T.status on your HD: Applications > Utilities > Disk Utility > in thepanel at left, select the first item in the list/your HD mechanism > look atthe bottom of the main window next to S.M.A.R.T. status and see if it says“Verified” or something more ominous like “Failing.”
If S.M.A.R.T.status is "Verified," run Repair Disk: Boot from install disc (insertdisc > restart > immediately hold down c key and keep holding it untilyou see “Preparing Installation”) > at first screen select the language andclick Continue > click on the Utilities Menu in the menu bar > open DiskUtility > select your HD in the panel on the left side> click Repair Diskat bottom of main window. Run this at least twice, and keep running it until itsays “appears ok” twice in a row. If that doesn’t happen, you may need astronger utility such as DiskWarrior or if the directory is damaged beyondrepair, you may need to reinstall the OS, or you may have a damaged HD (repairutilities can only repair the directory structure, not the HD itself). Whenthis is finished, quit Disk Utility, quit the installer, and restart. Oncebooted normally, go to Applications > Utilities > Disk Utility and runRepair Permissions.

Restore Disc Will Not Boot From External DVD Drive

I am using an original MacBook Pro that I decided could use a good restore, and started to clean house. The optical drive is broken, so I am using an external USB drive. I inserted the restore disc that came with the computer (It has OS X 10.4.6 on it), erased my HD, and proceeded to install Tiger. However, setup froze while installing Photobooth, and I was forced to shut down the computer.
I'm trying to get my Macbook Pro to boot from the restore disc that came with it so I can try setup again, but it won't work. If I hold C during the boot, I get a flashing folder with a question mark over it. If I hold option, I get a cursor, but just a blank, gray screen. In both instances, the external DVD drive is active and reading the disc, but I'm not getting any results on the screen. I've also reset PRAM.
If I can just get my computer to boot from the disc, I should be able to get back on track. Thanks.

When I press option during boot, nothing happens. Just a gray screen and cursor, like I described above. I haven't been able to test the external drive yet on another mac to see if it is bootable because I can't find the other computer's boot disc at the moment, but I'll try later with something else.
I have been able to access the drive through Target Disk mode successfully though. Is there something in particular I should do with the files? The folders are:
Applications
cores
dev
etc
Library
OSInstall.mpkg.998YblbM
System
tmp
Users
var
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HELP! MacBook Pro cant recognise or burn DVDs but only CDs, and...

Hi all
I noticed that there many of you have the same problem, but I really need some advice here, my MacBook Pro cant recognise or burn DVDs but only CDs, well actually occasionally it does recognise the DVDs then it burn but cannot write (on Toast), also in many other apps, like iDVD or DVDSP, it does run well on the first part of the burning but then failed at the end, with all kinda diff error msg. I have tried using many diff brands of disc too, inc verbatim.
So I borrowed my friends external DVD writer (actually a cheapy one with no brand), when I tried to burn using the external then an error msg comes up and says the writer cannot recognise the disc.
I dont wana get the MBP to repair but just wana get a external DVD writer to solve the problem, cos i need to use my computer and dont have a replacement mac, but now I am worry if the problem i now having is a system problem or just hardware, not sure if it is because the DVD writer i borrow is cheapy so it doesnt cope with mac, or just my MBP have system error that cant burn DVDs...
But my MBP can burn CDs so it is not a hardware problem? and if that is a system problem so even I buy a new DVD writer wont solve the problem?
btw, I have tried many solving methods like rewriting permission, reset PVRAM, etc
PLSSSSSSSSSSSSSSSSSSSSSSSSS HELP

I'm having the same problem you are on my 2.4GHZ Core2Duo MBP running 10.5.2. It will sometimes recognize DVDs, sometimes not... it chuggs and clunks and then spits the disc out. If i re-insert it a view times it will show up on the desktop. I get failures from Toast as well as iDVD. If i keep trying i have been able to burn files onto a disc with the finder, but then the burner fails during the verification. If put the disc back in the contents appear to be correct (after a quick look). Burning CD-Rs seems to be working fine, that with the occasional DVD write seems to point away from the HW. I am trying with both Memorex DVD+RW and Verbatim DVD-Rs...
I have tried the command/option-PR reset combo with no luck.
Any ideas?
thanks,
-graham
PS the specific error i got from iDVD was: The error #-2147352539 was reported…
Message was edited by: Graham - Sonos

Ibook g3 M2453 boot from external DVD drive

Hi, I'm Simon from Germany.
I have an iBook M2453 Mac OS X and a lot of dvds.
But the iBook has no DVD drive. So I bought an external DVD drive. But no matter what I do during boot (press the C key or alt)
I can not boot from external DVD drive.
Please help me
Thank you.
Simon.
PS: I have translated the text using Google translate

Hi Simon,
the iBook is able to boot from USB, but this is not expected behaviour and not supported by Apple.
http://support.apple.com/kb/TA20554
There are some external enclosures that do the trick.
But only when you press ALT after Power on. (Select a startup volume via the Startup Manager)
External enclosures with Prolific PL-3507 chipset (Firewire/USB Combo)
You will find them on Ebay Germany
I have a Delock IDE>USB 2.0 enclosure for 2,5" HDs
http://www.delock.com/produkte/gruppen/Geh%C3%A4use/Delock_25_external_enclosure _USB20_42365.html?setLanguage=EN
that works also.
Hallo Simon,
das läuft nur mit einigen wenigen externen Gehäusen. Such auf Ebay nach "PL-3507"
und nimm eins mit Firewire und USB Anschlüssen.
Ein Festplattengehäuse von Delock für 2,5" Festplatten ging auch ( Link oben)
Ein Boot ist nur möglich wenn du die ALT Taste nach dem Einschalten drückst und dann über den Startup manager dein Boot volume auswählst.

Screen stuck on gray, used shift key and my screen appears with MacBook Pro and not the recovery option. Please help

Screen stuck on gray, used shift key and my screen appears with MacBook Pro and not the recovery option. Please help!

Hi ..
Shift key boots into Safe Mode, not Recovery.
This only works on a Mac running v10.7 Lion or later.
Startup your Mac while holding down the Command + R keys. From there you should be able to access the built in utilities to repair the startup disk and restore OS X using OS X Recovery
If you can't boot into Recovery Mode, help here > Mac OS X: Gray screen appears during startup

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At the moment i'm using my macbook pro with an ethernet cable = where i'm now i don't have wi-fi -> now i'm trying to do a wi-fi hotspot for my iphone through my macbook pro, but it's doesn't work - please help me!

Theres almost a trick to it for first time users, goto SETTINGS...General......Cellular (if Verizon) ....Personal Hotspot, turn it on.....turn on wifi on your Mac, select your Iphone. Enter password.
If you take too long doing it, youll need turn turn off and on real quick the "personal hotspot" slider on the Phone.......then go quick again thur the Mac.

Macbook Pro Wont Boot from Retail 10.6.3 DVD

Just like the title says. It wont boot off the retail 10.6 disk I got a couple weeks ago.
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Hi Alexander,
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I booted the iMac (Intel...the last one with the White Bezel) tonight, and all of my users were GONE except for "Other." The internal Superdrive has had a disc jammed in it for months, so instead I have an OWC external USB/FW400/FW800 DVD drive. Snow Leaopard.
I need to boot from the SL install disc, but that must go into the external drive...which, as it's been since I upgraded to SL, the Mac sometimes sees and sometimes doesn't. Right now it can't see it. Which leaves me a big pile of crap, doesn't it?
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Can you tell I'm a bit frustrated with this?
I've reset the PRAM. I've rebooted. I've held down all sorts of combinations of keys. I've tried every single interface type on the external drive and the same thing - the drive can't be seen by the computer.
Has the internal hard drive failed? Nope. I'm tying this using the Firefox browser that's running on my Windows XP installation via Boot Camp on the internal hard drive.

Thanks, but no luck so far.
I have an old iMac G3 downstairs, and I connected it to the machine via Firewire. I could see the disk on the 24" iMac, its folders, etc. I wanted to see if I could install OS X via Target Disk Mode from the old machine to the new one, but it's a PowerPC machine and you can't do that. Maybe you can't do that from ANY iMac...I'm not that experienced.
Now the iMac isn't booting at all to Windows via Boot Camp - it's been booting for 45 minutes now with the "WinXP" logo, but nothing. I'm about to throw it in the car and haul it over to my parents, who have both a Powerbook and a 27" iMac. Maybe it'll work there. Who knows.
Other ideas...replace the internal hard drive (cheap)...if that doesn't work, I'll just sell the thing. I'm not going to sink $300 into the thing when I can get a new machine for around $600-$700. I may go to a Windows7 machine on the desktop and a Powerbook...maybe even an iPad.
I really want to love this iMac. It's my first (well, I did have the G3, but that was just to play with) Mac. It's given me a ton of problems since I bought it new. It's always been a "stock" machine - nothing weird done to it. I was hit with an iMovie update once, and that broke iMovie. Even the new iLife 2009 didn't fix it. Then, the internal optical disk drive failed. I couldn't believe that Apple used a proprietary optical drive rather than a stock Pioneer model. Price for the drive alone? $200.
I installed Snow Leopard 2 months ago, and that completely broke my ability to use external optical drives. Sometimes they work...most times they don't. This is an ongoing problem that many people are having (check the forums)...but no fix. Where does that leave me? With a useless computer.
So, I've boiled it down to this: I love the Mac software. I hate the hardware. Sure, it's pretty, but if something goes wrong, get ready to pay. I hate that Apple knows about problems, yet does nothing to address them, like the problem with external optical drives and Snow Leopard.
I bought the Mac because I was sick of Microsoft not being able to simply produce an OS full of security holes. Often times I read people bashing supposed "driver ****" with Windows, but look at what users of Windows machine are demanding of Microsoft - "please make my software compatible with the trillions of combinations of hardware that can run the os...all the way back to stuff that was created in the mid 1990s." Meanwhile, from my experience, Apple can't get their software to work with their own proprietary, supposedly vertically-controlled hardware.
Windows7 is a not bad OS. It's got it's faults, of course. But, if my optical drive failed in a Windows box, I'd have it replaced in 10 minutes...with a bluray drive...that can write...for under $100.
I use my computer for pictures, etc. In fact, we were ready to send off to iPhoto for our yearly photo books. That's not going to happen, as the photos are forever trapped on my Time Machine backup drive (lesson learned: dump photos to a generic format...fat32 works...just in case you decide to switch from Mac to Win7). iLife is great. MS Office is great, too, on the Mac. I love the little things the Mac does right.
After years of screwing around with my Windows box, I wanted a computer that acted like a consumer electronic device. That's not what I've gotten.
Ugh, so now do I buy a Mac Mini for $700, a new iMac for $1,400, or a Macbook Pro and a mac mini?
...or...do I continue to work within this silly Ubuntu Linux world?
Whatever the answer, I wish I didn't have to ask the question now.

Combo Drive reading Dual Layer / booting from external DVD USB

I am helping a friend with an iMac G5. He has the combo drive which is not able to read the dual layer Leopard DVD. I have looked to see if there is a firmware update for the drive however no luck. I am able to put an external usb DVD and it reads the disk however I was not able to boot from the disk using keyboard commands I tried AppleOption+ShiftDelete, C, and also tried Option but no luck.
I have been reading that booting from usb external drive is a no no on older G5 iMac's unless you are using fire wire. If any one can give me some help with getting the USB drive to boot, or figuring out why the combo drive spits out the DVD every time I would appreciate it. I am also willing to make a bootable usb leopard thumb drive, but I don't want to waste my time if it's not going to boot from USB.
Thanks,
jtadmin

Do you happen to have a more recent Mac that can read the Leopard installation DVD?
If so, you may be able to start up your Mac in FireWire Target Disk Mode,
http://support.apple.com/kb/HT1661
and let the iMac G5 use your Mac's optical drive to boot from the Leopard DVD.
Also, it is true that PowerPC Macs can generally only boot from external drives that are FireWire.

I have a iPad 3 and the iPhone 5 and I can't access yahoo mail from. Either device please help

I have a iPad 3 and the iPhone 5 and I can't access yahoo mail from. Either device please help

Swipe up from bottom of screen.
Control Center
http://support.apple.com/kb/HT5858

How do I download my Microsoft office on to my MacBook Air using airdrop from my iMac? Please help

How do I download my Microsoft office on to my MacBook Air using airdrop from my iMac? Please help

Out of curiosity, does Microsoft's licensing allow for such an install and/or more than one install? I just did a cursory check on their licensing and found that most are only licensed for one computer unless you buy a special key card.
I had a different app once that was only allowed on one computer; it would not install on the other Mac. You may therefore encounter problems - since you must have an install CD, why not use that if you have the key card allowing you to install it on more than one?

My MacBook Pro wont boot from CD

For some reason the factory installed OSX instance on my MacBook pro has corrupted telling me each time I try to boot it that its encountered and error and I'll need to switch my mac off and back on again... OK...
So after switching my mac off and back on again about 400 times I begin to get the idea that maybe that error message isnt as intelligent as I might like it to be..
So i've attempted to re-install OSX 10.4.6 from the Install DVD i got with the MacBook pro... However I cant get the laptop to boot from this CD... I've tried: a straight turn off turn back on and the cd spins up but then boots from my default boot device.. I've also tried holding down the C key while the laptop boots, again the cd spins up but no luck.
Please please please can anyone point me towards what im doing wrong.. I'm a real mac newbie.. And while i love my MacBook pro this is getting really frustrating.. :o(
MacBook Pro Mac OS X (10.4.6) BootCamp installed

If you have an open firmware password, delete it. It will not boot off anything but HD with OF password. Or at least thats what it was for me.

Cannot boot from external USB device

Hi,
I have an iMac with a superdrive that is not working. This gives me a lot of trouble, because I want to install windows.
Some month ago, I bought an external USB DVD drive, and hoped that it would help. But I quickly experienced that it did not, since I could not get boot camp to use it.
Today, I was sure that I found a good solution. I ran into a site that explains how to use en external DVD to install windows on macbook air which have no internal DVD.
http://www.tech-recipes.com/rx/9136/macbook-air-install-windows-7-with-boot-camp -without-an-external-dvd-drive/
Unfortunately this do not work - for me and my iMac.
First I installed the rEFIt tool and this works fine. The external DVD shows up as a bootable device.
But when I try to start the windows installer from the external DVD, the system just hangs and shows a windows logo with no color. This operation I carry out by selecting the external DVD in the eEFIt menu.
Any suggestions will be appreciated.

I don't know about the link you gave, I can only pass on my experience.
I made my bootable Windows7 X64 install disk by this method:-
"This method is used to create a new install disk if you have your authentic Windows 7 disk. Don't sweat it; it's much easier than it looks.
Note: you will need to do this on a PC
In your C drive, create these two folders: c:\windows7exe c:\windows7dvd
Go to this link http://rapidshare.com/files/297067205/oscdimg.exe and download Oscdimg.exe. Place it into c:\window7exe folder
Insert your Windows 7 disk into your DVD drive For this example, we will refer to it as the D drive.
You need to open a DOS prompt window. Do this by going to start/programs/accessories/command prompt
Your default command prompt will look something like C:\Users>.
At the prompt type cd c:\windows7exe
Your command prompt should now look like c:\window7exe>
At the command prompt, type in exactly (or copy and paste):
oscdimg.exe -n -m -bd:\boot\etfsboot.com d:\ c:\windows7x64.iso
Note: the letter d in the above command refers to your DVD drive, change it if your DVD drive is labled with a different letter.
Press Enter. This will begin creating a new disk image. You should see a response in the DOS window that displays its progress.
When the process is complete, you will find a new disk image of your Windows 7 disk in the folder labeled c:\windows7X64
Now that you have a new disk image, you need to burn it onto a disk using ImgBurn. This is a free utility which you can download from here: http://www.imgburn.com/index.php?act=download
Place a blank DVD into your DVD RW drive.
Launch ImgBurn and select "Write image file to disc". In the Source window, find your newly burned image in the c:\windows7X64 folder. Click on the disc icon at the bottom of the window to begin the burning process.
Voila! You have a new Windows 7 installation disk which will install with no problems. "
.....which is on this thread
May not be any use to you without an internal DVD RW which works.
In your shoes I would really want to get my internal superdrive working.
A quick look at iFixit suggests the iMac uses a standard laptop DVD RW which are readily available, but perhaps I am missing something.

MacBook Air wont boot from cd, dvd, thumb drive or network

hey guys. i just bought a used macbook air from a friend and i want to wipe his stuff off the computer as well as reset the password.
i tried booting the install disc on the MBA from my room mates macbook pro and it gives me a kernel error every time i try. same thing on the other rooms mates MB. same thing when i try to boot off a flash drive. i even tried to make a bootable flash drive with ubuntu but to no avail.
any other suggestions?

ok guys
ive tried the install key that come with it. ive tried using an external drive. same freaking thing happens
i have the crash log here
"Interval Since Last Panic Report: 2152942 sec
Panics Since Last Report: 11
Anonymous UUID: 080C0778-6263-4D99-8669-D8FD7DCCDD6F
Wed Mar 2 17:56:15 2011
panic(cpu 1 caller 0x2a6ac2): Kernel trap at 0x04188f58, type 13=general protection, registers:
CR0: 0x8001003b, CR2: 0x2a7d0000, CR3: 0x00100000, CR4: 0x00000660
EAX: 0x040de6e6, EBX: 0x05314f80, ECX: 0x05310080, EDX: 0x3106b710
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EFL: 0x00010286, EIP: 0x04188f58, CS: 0x00000008, DS: 0x053c0010
Error code: 0x0000afe4
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x2a763b88 : 0x21acfa (0x5ce650 0x2a763bbc 0x223156 0x0)
0x2a763bd8 : 0x2a6ac2 (0x590a50 0x4188f58 0xd 0x590c07)
0x2a763cb8 : 0x29c968 (0x2a763cd0 0x0 0x6046c 0x4188f58)
0x2a763cc8 : 0x4188f58 (0xe 0x53c0048 0x2a760010 0x31050010)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0x6046c
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10A432
Kernel version:
Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~1/RELEASE_I386
System model name: MacBookAir3,2 (Mac-942C5DF58193131B)
System uptime in nanoseconds: 15737165837
unloaded kexts:
(none)
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com.apple.driver.AppleIntelPenrynProfile 17
com.apple.DontSteal_Mac_OSX 7.0.0
com.apple.driver.AppleHDA 1.7.4a1
com.apple.driver.AppleGraphicsControl 2.8.16
com.apple.driver.AppleIntelNehalemProfile 11
com.apple.driver.AudioIPCDriver 1.1.0
com.apple.driver.AppleUpstreamUserClient 3.0.5
com.apple.driver.AppleBacklight 170.0.2
com.apple.driver.AppleIntelMeromProfile 19
com.apple.driver.ACPISMCPlatformPlugin 3.4.0a20
com.apple.GeForce 6.0.0
com.apple.iokit.SCSITaskUserClient 2.5.0
com.apple.driver.AppleUSBCardReader 2.5.0
com.apple.driver.DiskImages.SparseDiskImage 281
com.apple.driver.DiskImages.ReadWriteDiskImage 281
com.apple.driver.DiskImages.UDIFDiskImage 281
com.apple.driver.DiskImages.RAMBackingStore 281
com.apple.driver.DiskImages.HTTPBackingStore 281
com.apple.driver.DiskImages.FileBackingStore 281
com.apple.iokit.IOAHCIBlockStorage 1.5.0
com.apple.driver.AppleAHCIPort 2.0.0
com.apple.driver.AppleUSBHub 3.7.8
com.apple.driver.AirPortBrcm43xx 410.91.20
com.apple.driver.AppleUSBEHCI 3.7.5
com.apple.driver.AppleUSBOHCI 3.7.5
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.driver.AppleEFINVRAM 1.3.0
com.apple.driver.AppleRTC 1.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleACPIButtons 1.3
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.3
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 90.0.0
com.apple.security.sandbox 0
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.0.11
com.apple.driver.AppleIntelCPUPowerManagement 90.0.0
com.apple.driver.AppleHDAHardwareConfigDriver 1.7.4a1 - last loaded 15702466057
com.apple.driver.DspFuncLib 1.7.4a1
com.apple.iokit.IOAudioFamily 1.7.0fc16
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.7.4a1
com.apple.iokit.IOHDAFamily 1.7.4a1
com.apple.iokit.AppleProfileFamily 40
com.apple.driver.AppleSMC 3.0.1d2
com.apple.driver.IOPlatformPluginFamily 3.4.0a20
com.apple.NVDAResman 6.0.0
com.apple.iokit.IONDRVSupport 2.0
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.iokit.IOUSBHIDDriver 3.7.5
com.apple.iokit.IOUSBMassStorageClass 2.5.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.5.0
com.apple.driver.AppleUSBMergeNub 3.7.5
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.driver.DiskImages.KernelBacked 281
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOAHCIFamily 2.0.0
com.apple.iokit.IOUSBUserClient 3.7.5
com.apple.iokit.IO80211Family 300.20
com.apple.iokit.IOUSBFamily 3.7.8
com.apple.iokit.IONetworkingFamily 1.8
com.apple.driver.AppleFileSystemDriver 2.0
com.apple.driver.AppleEFIRuntime 1.3.0
com.apple.iokit.IOHIDFamily 1.6.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.TMSafetyNet 6
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.DiskImages 281
com.apple.iokit.IOStorageFamily 1.6
com.apple.driver.AppleACPIPlatform 1.3
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacBookAir3,2, BootROM MBA31.0061.B00, 2 processors, Intel Core 2 Duo, 1.86 GHz, 2 GB, SMC 1.66f54
Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
Memory Module: global_name
AirPort: spairportwireless_card_type_airportextreme (0x14E4, 0xD1), Broadcom BCM43xx 1.0 (5.10.131.36.1)
Bluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en0
Serial ATA Device: APPLE SSD TS256C, 233.76 GB
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x850a, 0x24600000
USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0x26100000
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x04500000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x821b, 0x04530000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x023f, 0x04300000
"

Macbook pro cant boot from external dvd device please help !!!!

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