How to boot from a bootable external HD w/Mav on it.

My Macbook internal HD has OS X.6.8. Have downloaded Mavericks on an external, bootable HD so that I can have a choice of 10.6.8 or Mavericks. I know I have to restart, but how do I get choose the external to boot from?
Thanx

Hold the alt key when booting the computer to choose what drive to boot to.

Similar Messages

How to Boot From an External HD

I am still pondering getting a mini - I know that I will want a much larger hard drive (since I want to use it for media and will keep tons of video and music on it). I would like to know how to boot from an external hard drive. I've searched google, the forums, and apple support, and see people mention it all the time, but can't find out how to do it, etc. Is it just like running off my normal HD but all the files are kept on the external (so I could still access files thru itunes, etc.)?
Also, I would like to get a 500GB+ drive to keep my files on, and was wondering if people had recomendations. Brands, USB 2.0 or Firewire, etc.
Apologies if this is a novice question - but I can't seem to find answers anywhere.
Thanks in advance.

Firstly, it is certainly possible to boot from an external drive, so what you plan is not only feasible, but since the external would be faster than the internal drive, also rather beneficial to the efficient running of the mini - meaning, the system will be notably faster in use.
In my view, the best option is an external firewire drive, not USB. The reason is that FW has it's own dedicated controller while USB doesn't. In effect, it means that FW data transfer speeds are stable and consistent, while USB rates vary widely, depending on what else the system is doing.
Once you have your external drive connected, the easiest way to make it bootable is to copy your existing MacOS install from the internal drive using software such as Carbon Copy Cloner (downloadable from www.versiontracker.com). This will avoid having to do a lengthy reinstall. Once MacOS is copied, then open System Preferences, and the Startup Disk preference pane, and click on the external drive icon. The next restart will then be directed to the external.
Once you have booted from the external drive, you use it just as you would an internal, and MacOS will treat it as the boot volume, including by default, placing your user account folders on it, including your documents, music etc.

How to boot from external Hardisk where sap is installed

Hi friends,
I have an External Hardisk where SAP is installed in it i.e., Win 2003 on C drive & SAP on D drive.
In my laptop Win XP is there, but I am trying to boot with External Hardisk where Win 2003 is installed.
I am selecting to boot from External Hardisk where Win 2003 is installed but it shows the Win 2003 booting screen and the next moment screen becomes black.
So can anyone help me How to boot from Hardisk.
Thanks
santhosh

Hi,
You can not boot OS from USB devices in Windows.
Create the separate drive on your existing disc and install windows on that drive and use ur USB disc for installing SAP.
Hope it'll help u....

Help please: how to boot from clone/external hard drive because "disk cannot be partitioned because some files cannot be moved"?

MBP Retina 15" MID 2014 2.5Ghz
OS X Yosemite 10.10
I have a external HDD and want to erase and restore my laptop so I can install windows via Bootcamp Assistant but I don't know how to boot from a clone to fix the issue and am not sure if when I erase and restore I will still have Yosemite 10.10? I have no way to reinstall the OS if I lose it. An average user friendly guide would be greatly appreciated please

I do not think you have to erase your MacBook's disk in order to install Windows. First of all you can try a few things before formatting the disk.
The first thing you should do is to check that your MacBook Pro's drive is OK with Disk Utility (in /Applications/Utilities). After opening it, choose "Macintosh HD" in the sidebar and press "Verify Disk". If it gives you any error, you will have to boot your Mac in OS X Recovery (press Command and R keys while your Mac is starting up) to repair Macintosh HD (the steps are the same but pressing "Repair Disk" instead of "Verify Disk").
After you have repaired the drive, boot up in OS X and try partitioning the drive again with Boot Camp Assistant. If it does not work, you will have to format the drive and reinstall OS X, but I will give you these steps only if this does not work.

How to boot from cloned external HD

I have just cloned my HD using Carbon Copy Cloner.
I can not figure out how to boot from this cloned drive.
I am sure it must be something easy like holding a key down while restarting.
Thanks,
Brian

you can also use the start up pane found within system preferences.

How to boot from USB flash drive - Portege R500

Hi,
I have a Portege R500 running Windows XP, brought about 2 years ago, and recently contracted a worm virus that has infected some of the start up files as the minute I log in it logs out again, even in safe mode! Quickest way I can think of sorting it is to reformat it with the XP recovery disc and reinstall windows.
Problem!! The CD/DVD drive on the laptop stopped working a while ago, have tried pretty much everything in the thread on this site but had no luck.
So my plan was to boot from a USB flash drive and do it that way. However in the boot settings I only have the options of HDD / FDD / CD-ROM / LAN, neither of these will work. Does anyone know how to boot from USB flash drives?
Any help would be really appreciated

Hi
As far as I know it should be possible to boot from USB FDD
Im not sure if you would be able to boot from USB flash drive but its definitely worth a try
Generally you could try to press F12 button when notebook powers up.
Then a boot menu should appear on the display and you should see all bootable devices.
PS: As far as I know the USB booting was available in ToshibaHWSetup (Toshiba tool which changes the BIOS settings in windows OS.) Therefore I assume booting from USB should be possible.
Greets

Hyper-V VM Generation 2 - How to boot from .ISO

Hi guys,
Server OS: Windows Server 2012 R2
I have a VM Gen2 with following settings:
I can boot fine from the same .iso from a Gen1 VM so the .iso is bootable.
I know that the Gen2 VM uses SCSI instead of IDE, but I have no clue regarding how to boot from the .iso..
Any ideas?
Thanks in advance!
Best regards,
Kenny

Hi,
Please confirm your image fixed the EFI boot comment. You may facing the following issue.
Hyper-V VM Generation 2 - How to boot from .ISO
http://social.technet.microsoft.com/Forums/en-US/29574a12-7528-4f49-ae12-6fe1d85b3732/hyperv-vm-generation-2-how-to-boot-from-iso?forum=winserverhyper
Hope this helps.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

How To Boot From CD in XP Pro?

I want to boot from disc so I can install a new Vista instead of XP, but I can't figure out how to boot from disc at start up. When I choose to boot from my windows HDD, it doesn't give any chance to boot from disc (no "press any key" or bios)....help?
Message was edited by: kimbahpnam

Hi,
with the Vista CD inserted reboot your Mac and hold down the 'Option/Alt'-key.
In the following Selection Screen farthest to the right should be an icon of a CD labelled "Windows".
Click on it and your Mac should boot from the CD.
If the CD-icon is not shown, then most likely the Vista CD isn't bootable for whatever reason.
Regards
Stefan

Trouble Booting from DVD/CD/External HDD

I own a new 24" / 3.06 GHz / ATI 4850 / iMac, all seems well after upgrading to Snow Leopard. Although, there is one strange problem that I've been having right along; the system will not boot from a bootable CD/DVD or and an external FireWire Drive. The disks and the drive WILL boot using a different 17" iMac with Intel Processors. So, I know its not the formatting of the drive or an out of date bootable disk. They all boot the 17" iMac without issue, both machines are Intel and are running 10.6.
When I attempt to boot the 24" I select the drive or disk in the "startup" preference pane and or select the drive while holding down the "C" key. Either way I choose, the computer will eventually restart and boot from the onboard hard drive. Not sure which way to turn, runs too good to bring it in for diagnostic work. I was hoping someone would have a quick fix so I can boot from a source other than the installed HDD.
Thanks...

The startup disk setting is stored in PRAM, so I would try resetting it.
http://support.apple.com/kb/HT1379
But there is an important consideration that may be the cause of your problem. Macs can generally boot the version of Mac OS X it came with, or LATER (up to hardware limits), but NOT earlier.
So a brand new iMac, if it came with Snow Leopard, will not be able to boot an older retail Leopard disc. It will also not be able to boot an external drive that has Leopard on it. The 17-inch Intel iMac, since it is a 2006 model, can boot Tiger, Leopard, or Snow Leopard; it came with Tiger, and Leopard and Snow Leopard were released later.
Now, if you are putting the Mac OS X installation disc that came with your new iMac into that external optical drive, I think it should have worked. If that external FireWire drive has Snow Leopard that was installed by the new iMac on it, I think it should have worked.

1) How to Boot from SAN for T4-1 Server with Solaris 11.1 OS on the disk? 2) How to SMI Label/Format a disk while OS Installation in Solaris 11.1?

FYI....boot from SAN is required for physical server (T4-1) (not OVM).
1) How to Boot from SAN for T4-1 Server with Solaris 11.1 OS on the disk?
The SAN disks allocated are visible in ok prompt. below is the output.
(0) ok show—disks
a) /pci@400/pci@2/pci@0/pci@f/pci@0/usb@0, 2/hub@2/hub@3/storage@2/disk
b) /pci@400/pci@2/pci@0/pci€a/SUNW, ezalxs@0, l/fp@0, 0/disk
e) /pci@400/pci@2/pci@0/pci@a/SUNW, ealxs@0/fp@0, 0/disk
d) /pci@400/pci@2/pci@0/pci@8/SUNW, emlxs@0, l/fp@0, 0/disk
e) /pci@400/pci@2/pci@0/pci@8/SUNW,enlxs@0/fp@0,0/disk
f) /pci@400/pci@2/pci@0/pci@4/scsi@0/disk
g) /pci@400/pci@1/pci@0/pci@4/scsi@0/disk
h) /iscsi—hba/disk
q) NO SELECTION
valid choice: a. . .h, q to quit c
/pci@400/pci@2/pci@0/pci@a/SUNW, ealxs@0/fp@0, 0/disk has been selected.
Type “Y ( Control—Y ) to insert it in the command line.
e.g. ok nvalias mydev “Y
for creating devalias mydev for /pci@400/pci@2/pci@0/pci@a/SUNW,emlxs@0/fp@0,0/disk
(0) ok set—sfs—boot
set—sfs—boot ?
We tried selecting a disk and applying sfs-boot at ok prompt.
Can you please help me providing detailed pre-requesites/steps/procedure to implement this and to start boot from SAN.
2) How to SMI Label/Format a disk while OS Installation in Solaris 11.1?
As we know that ZFS is the default filesystem in Solaris 11.
We have seen in the Oracle documentation that for rpool below are recommended:
- A disk that is intended for a ZFS root pool must be created with an SMI label, not an EFI label.
- Create root pools with slices by using the s* identifier.
- ZFS applies an EFI label when you create a storage pool with whole disks.
- In general, you should create a disk slice with the bulk of disk space in slice 0.
I have seen the solution that using format -e, we change the labelling but all the data will be lost, whats the way to apply a SMI Label/Format on a rpool disks while OS Installation itself.
Please provide me the steps to SMI Label a disk while installaing Solaris 11.1 OS.

Oracle recommends below things on rpool: (thats reason wanted to apply SMI Label)
I have seen in the Oracle documentation that for rpool below are recommended:
- A disk that is intended for a ZFS root pool must be created with an SMI label, not an EFI label.
- Create root pools with slices by using the s* identifier.
- ZFS applies an EFI label when you create a storage pool with whole disks.
- In general, you should create a disk slice with the bulk of disk space in slice 0.

Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation it gives me an input/output error and stops. Any tips?

Hi, I have a hard disk failure so to recover my data I am using disk utility to restore the data on an external drive while booting from a second external hard drive. When I perform the operation and after having selected both my destination and source drives, the operation begins but soon fails due to input/output error. If I try to create an image of the drive it gives me the same error message. Any help would be much appreciated.

Disk Utility only creates a image of the drive, so it's no help getting exactly what you want, which is your files. If the file structure is messed up or the drive is failing then it's no help.
If you have a external boot drive and you can't access the internal non-booting drive though the typical Finder and windows to transfer your files via drag and drop methods, then you need to install Data Rescue on the external boot drive and it will do as best as it can to recover your files. (works on non-encrypted/non-Filevaulted drives only)
.Create a data recovery/undelete external boot drive
Are you sure you have hard drive failure, or that OS X isn't merely not booting?
Because if the drive is working physically, then there is a host of fixes
..Step by Step to fix your Mac
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents#/

Os9 upgrade failure, How to boot from cdrom

hello world... following the instructions... almost...
on the Ultra 5 running os8 I input-ed init 0 boot cdrom from the OK
prompt for an os9 upgrade. 1/2 way done install quits. (new feature?)
now system boots for about 20 seconds & then reboots cycling.
I am not able to stop the process so that I can get an >OK prompt
for another attempt.
question.
How to boot from the install CD and prevent system from
'cycling' infinitely < arrgh!>

press the stop key and the a key at the same time. the sun will stop at the ok prompt.

Kernel panic when booting from DVD or external drive

Hey Folks,
I have a 13" MBP, seems to run fine for the most part.
However, I can't boot from DVDs or external hard drives. Disk Warrior, my and a tech support buddy of mine's OSX Snow Leopard DVDs, and external boot disks all cause a kernel panic when selected from the alternate boot menu when rebooting with alt.
The DVD/External spins up, the loading spinner goes for about 20-30 seconds, and then BAM - Kernel panic. I'd reinstall OSX... but I can't!
Any suggestions? I'd rather not send the computer to a tech for a week - I need it daily for work.

Kernel panic log:
Fri Nov 26 11:42:49 2010
panic(cpu 0 caller 0x2a6ac2): Kernel trap at 0x00000000, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0x00000000, CR3: 0x00100000, CR4: 0x000006e8
EAX: 0x57cd9408, EBX: 0x57983dec, ECX: 0x06fa2b80, EDX: 0x07fb9c80
CR2: 0x00000000, EBP: 0x57983e18, ESI: 0x07fb9f00, EDI: 0x00000001
EFL: 0x00010206, EIP: 0x00000000, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000010
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x57983ae8 : 0x21acfa (0x5ce650 0x57983b1c 0x223156 0x0)
0x57983b38 : 0x2a6ac2 (0x590a50 0x0 0xe 0x590c1a)
0x57983c18 : 0x29c968 (0x57983c30 0x7fb9f00 0x57983e18 0x0)
0x57983c28 : 0x0 (0xe 0x48 0x57980010 0x7fb0010)
0x57983e18 : 0x5389f2 (0x7fb5a00 0x7f62500 0x1 0x4fbe2a)
0x57983e78 : 0x536c27 (0x7f62500 0x7fb5a00 0x8006380 0x805e4c0)
0x57983f28 : 0x5371b8 (0x7f62500 0x8000140 0x0 0xffffffff)
0x57983f78 : 0x538e67 (0x7f62500 0x0 0x57983fac 0x1)
0x57983fc8 : 0x29c68c (0x7f85190 0x0 0x29c69b 0x74d03d4)
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: MacBookPro7,1 (Mac-F222BEC8)
System uptime in nanoseconds: 109525048606
unloaded kexts:
(none)
loaded kexts:
com.apple.driver.AppleIntelYonahProfile 14
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.SMCMotionSensor 3.0.0d4
com.apple.driver.ACPISMCPlatformPlugin 3.4.0a20
com.apple.driver.AppleBacklight 170.0.2
com.apple.driver.AppleIRController 161
com.apple.driver.AppleIntelMeromProfile 19
com.apple.kext.AppleSMCLMU 1.4.5d1
com.apple.GeForce 6.0.0
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.driver.AppleUSBTCButtons 1.8.0b4
com.apple.driver.AppleUSBTCKeyEventDriver 1.8.0b4
com.apple.driver.AppleUSBTCKeyboard 1.8.0b4
com.apple.driver.AppleUSBCardReader 2.5.0
com.apple.iokit.SCSITaskUserClient 2.5.0
com.apple.iokit.IOAHCIBlockStorage 1.5.0
com.apple.driver.AirPortBrcm43xx 410.91.20
com.apple.driver.AppleFWOHCI 4.3.4
com.apple.driver.AppleUSBHub 3.7.8
com.apple.driver.AppleAHCIPort 2.0.0
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.AppleHDAPlatformDriver 1.7.4a1 - last loaded 109517592692
com.apple.iokit.IOBluetoothSerialManager 2.2f18
com.apple.iokit.IOSerialFamily 10.0.2
com.apple.driver.AppleHDAHardwareConfigDriver 1.7.4a1
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.driver.IOPlatformPluginFamily 3.4.0a20
com.apple.iokit.AppleProfileFamily 40
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.driver.AppleSMC 3.0.1d2
com.apple.NVDAResman 6.0.0
com.apple.iokit.IONDRVSupport 2.0
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.driver.DiskImages.KernelBacked 281
com.apple.driver.AppleUSBMultitouch 200.20
com.apple.iokit.IOUSBHIDDriver 3.7.5
com.apple.driver.BroadcomUSBBluetoothHCIController 2.2f18
com.apple.driver.AppleUSBBluetoothHCIController 2.2f18
com.apple.iokit.IOBluetoothFamily 2.2f18
com.apple.iokit.IOUSBMassStorageClass 2.5.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.5.0
com.apple.driver.AppleUSBMergeNub 3.7.5
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.5.0
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOAHCISerialATAPI 1.2.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.5.0
com.apple.iokit.IO80211Family 300.20
com.apple.iokit.IOFireWireFamily 4.1.7
com.apple.iokit.IOUSBUserClient 3.7.5
com.apple.iokit.IOAHCIFamily 2.0.0
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

How to boot from DVD & how to force eject DVD

Hi,
Just installed a new HD on my MBP. I inserted the leopard DVD and it was spinning for about 2 minutes and then nothing happned. Just black screen. Now I tried starting holding the C key down. Nothing. I tried starting holding the eject button down, no eject of the DVD. I tried holding the button below the tracklpad down, no eject of the DVD.
How to boot from a DVD?
How to force eject DVD?
What am I doing wrong?

I hope you get an answer to this as I'm sturggling to
A) start my computer as it just goes to a grey screen
B) Force Eject a DVD
Someone suggested the below on another thread, it didn't work for me but maybe it will work for you.
http://discussions.apple.com/thread.jspa?messageID=5869652#5869652
Re: Stuck on Grey Screen.. Won't Boot
Posted: Nov 16, 2007 1:34 PM in response to: aliray10 Reply Email
(I don't have my (no-longer booting) iBook in front of me to check this, but I think this is what I did last night....)
Boot single user -- hold down "cmd-S" immediately after you turn the computer on.
"diskutil list" will give you a list of your disks. My CD drive was disk1.
"diskutil eject disk" should eject the target disk.

How to boot from SCSI in Virtual Machine

hi
i have VM's in Hyper V windows server 2012 data center edition.
i want to boot from SCSI drive for performance enhancement.
but when i select scsi then it doesnt boot and says boot failure no boot device found.
also tried with bios settings of VM but there is no option to select boot from SCSI.
so can anyone help me how to make it happen???
how to boot from SCSI drive in VM???
thnx
istiaq

Generation 1 virtual machines cannot boot from the virtual SCSI chain and 2012 does not support Generation 2 VMs. There is no meaningful performance difference between the virtual IDE and SCSI controllers anyway.
Eric Siron Altaro Hyper-V Blog
I am an independent blog contributor, not an Altaro employee. I am solely responsible for the content of my posts.
"Every relationship you have is in worse shape than you think."

How to boot from a bootable external HD w/Mav on it.

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