If I start up when my external hard drive is plugged in Mac doesn't boot up
If my external hard drive is connected to my MacBook when I turn it on, Mac OS X does not load. What can I do to make the computer load with my external hard drive attached?
Either use the startup key commands or use System Preferences>Startup Disk to select the external hard disk before you shut down.
Similar Messages
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Itunes freezes when my external hard drive is plugged in
Awhile back, in the summer, I upgraded to the newest version of itunes, and ever since, itunes doesn't work when my external hard drive is plugged in (which contains most of my music). When I unplug it, it will play the music on my computer, but when it's plugged in, it won't work at all and only freezes. I reinstalled it, and then slowly started putting some music in from the external hard drive, and it worked, but after I put a bunch in it froze up again. I have no idea why this is happening, as it was never a problem before. SUGGESTIONS?!
Either use the startup key commands or use System Preferences>Startup Disk to select the external hard disk before you shut down.
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I downloaded several cds to my external hard drive in .mp3 format. Later, I copied them to iTunes. The songs only play when the external hard drive is plugged in. I tried to load the songs from iTunes to my iPhone and the songs don't play. I thought iTunes allowed me to transfer music to my iPhone and play it. What am I doing wrong?
Hi skoorb1,
When adding music to iTunes, you can set it to either make a local copy of the file, or simply point to the original location of the file (for example, on an external hard drive). If it is set to do the latter, it will not be able to play or transfer those files when the external hard drive is not plugged in. You may find the following article helpful:
iTunes: About the Add to Library, Import, and Convert functions
http://support.apple.com/kb/ht1347
Regards,
- Brenden -
So I tried to upgrade to Mavericks today and it failed (same error as in this post which seemed to be a common problem). It wouldn't let me repair the disk, and after trying all sorts I rebooted my computer in recovery mode - it wouldn't let me reinstall Lion because the hard drive was apparently locked and I could see no way around this. So I decided to restore from a Time Machine backup on an external hard drive and that worked okay, except my MacBook now only works when the external hard drive is connected. If I remove the external hard drive, I'm back to square one as it still won't let me reinstall Lion as the HD is locked!
I have no idea what's going on. HELP!The startup drive is failing, or there is some other internal hardware fault.
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
Keeping your confidential data secure during hardware repair
Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.
*An SSD doesn't need to be zeroed. -
How do I move a partition on my mac hard drive, to an external hard drive so that i can run windows when the external hard drive is connected
Are you talking about a Bootcamp partition? You can't boot Windows from an external drive.
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How can I use my external hard drive from PC to Mac without reformatting???
Ok, so I am computer illiterate. I have always used PC's and have just bought a MacBook. When I plug in my external hard drive into my new Mac, it says it needs to be reformatted to use with Mac, which would cause all data to be erased. Is there anyway to get around this?
Please help me!OK... as Woggledog indicated, OS X cannot write to NTFS formatted drives. NTFS is a proprietary Microsoft format. Conversely, Windows can neither read nor write to an OS X formatted drive.
Both Windows and OS X can read and write to FAT32 (this is a fairly old format). The down side to FAT32 is that the largest file you can work with is 4GB. That is probably fine for most people... but if you're working with large files (videos, virtual drive images, large backup files, etc...) FAT32 is not suitable. There are applications that you can purchase for both Macs and Windows machines that will allow them to read and write to the other format.
An immediate option provided you have the space on either your PC or Mac is to create a folder on either machine and move everything from your external drive into that folder. Then you can format the drive to FAT32 and then copy everything back over to the external drive (and delete it from your Mac or PC's internal drive). It might take some time depending on how much data you have... but you'll only have to do it once... and this is assuming you have enough space on one of you machines to copy the data from your external drive. -
I am not much of a computer technician. I bought a time capsule thinking I could use this for an external hard drive and keep my MAC hard drive free. Was I mistaken? Once I back everything up on the TC, can I delete everything off of my MAC and then use my TC as my hard drive??
Once I back everything up on the TC, can I delete everything off of my MAC and then use my TC as my hard drive??
TC was designed to backup your Mac. The TC literature is pretty clear about this:
If your Mac's hard drive has a problem....it will sooner or later....you can use your backup on the TC to rebuild your Mac.
But.....if you move all of your data to the TC from your Mac....you only have one version of that data now, and it is on the TC.
Have you thought about what will happen when....not if....the TC has a problem? Since the only version of your important data was on the TC, and the TC has failed......you lose all of your data.....because you have no backup.
A much better plan would be to add a USB or FireWire hard drive and connect it directly to your Mac. Move the data on your Mac over to the hard drive.
Then, the TC will backup both your Mac and the hard drive. So, you have original data on on one drive and backups on another drive.
That would be a minimum backup plan. Most of us have more than one set of backups. -
Viewing External Hard Drives on both PC Mac and in Parallels.
If someone could give me a clear answer on how to use an external hard drive b/w my Mac, Parallels and my work computer (PC) that would be most helpful.
I bought a external hard drive overseas and was having no problems with it on a PC but when i bought this Mac Book Pro i could only view and retrieve data and not write to it. I then partitioned it in the disk utility (master boot record) and am now unable to see the drive on a PC where all my files are, but it works perfect with the Mac.
I figured it was my dodgy hard drive from indonesia so i just bought a LaCie and i can't see it in the Parallels where i need to use a PC program even when i disconnect and connect when parallels are loaded. I haven't tried it on my work PC yet.
Is it possible to use a EHD between all 3 (Mac, Parallels and a PC)? if so how? and if not what are my options to maximizing the ability to access data on all three?
Thanks would appreciate any insight.
Mac Book Pro Mac OS X (10.4.9)Hi and welcome to Discussions,
the reason why your MBP could not write to the HD was, because it was most likely formated using NTFS as file system, which OSX can read from, but not write to.
The best file system for all three is FAT32, which is read- and writeable for all three.
Two problems with FAT32:
1. single files can not be bigger in size as 4GB
2. Windows can not format partitions with FAT32, that are bigger than 32GB.
The first limitation can not be overcome with FAT32.
The second can be overcome, when using Disc Utility from OSX with MBR as partititon scheme and MS-DOS (OSX name for FAT) as file system.
Or you can use command-line program to do this with your PC: http://www.heise.de/software/download/h2format/40825
(Sorry, link is in german).
That way all three should be able to see and use the external HD.
Although it is a fact that Parallels can be picky sometimes with USB-connected drives, but with the newer versions of it, this problem has become less evident.
And since up to now Parallels does not support FireWire, you must USB with it.
Regards
Stefan -
I want to take files from my PC (using a Seagate external hard drive) then plug this Seagate External hard drive into my Mac Book Pro and move the files from the Seagate External Hard drive onto my Time Capsule. I do not want to put these files on my Mac. How do I do this? Where do I put these files on my Time Capsule? Will it affect the functioning of my Time Capsule?
Mixing files with data is not always great idea.
See info here.
Q3 http://pondini.org/TM/Time_Capsule.html
Why not just connect the PC directly to the TC by ethernet and copy the files over?
It is hugely faster and much less mucking around.
In windows load the airport utility for windows.. if you have not already as this will help you access the drive.
There is more info here.
http://support.apple.com/kb/HT1331 -
If I have to format an external hard drive to make it Mac compatible, will it delete all the content in the external hard drive?
As others have said, the answer to your question is a big YES. Formatting a drive will delete everything!
To keep your data, yet reformat the drive for optimal Mac compatibility, you will need to:
1) copy your files to a different hard drive (I would recommend two different locations if you value your data)
2) repartition/format the external drive
3) then copy the files back to the external.
You haven't given details but if you need the external to ONLY be compatible with the Mac (and no longer care if if can be read by Windows), then you will want to partition the drive using the GUID partition scheme, and format as the (HFS+) "Mac OS Extended (Journaled)" filesystem. You can do so using the built-in "Disk Utility" application on your Mac (in the Applications/Utilities directory). Here are instructions:
http://support.apple.com/kb/ph5845
If you need the drive to be compatible with both Mac and Windows computers then please post that so someone can recommend a solution for your specific needs. -
hey, can i clone my Macbook Pro internal hard drive and then paste it all onto a formated external hard drive, then make the Mac use the external as the primary hard drive? please help for i only have around 618mb left out of 189GB!!!!!!!!!!!!!!!!
If what doesn't work?
If cloning your internal drive to the external drive is not successful, I expect CCC will tell you so. Assuming that doesn't happen, you will have a bootable replica of the internal drive on the external drive once CCC has finished.
You can then do any of several things:
1. Replace your internal drive with a much larger one (320GB or 500GB, or even larger), and clone the external drive's contents onto the new drive so you'll have all your data in one place. Note that if you do this, you'll also need to buy an external drive that's large enough to back the new internal drive up on.
2. Boot from the external drive as a temporary measure while you clear at least 30-40GB of data off the internal drive, allowing you to keep using it and saving small amounts of data to it. The external drive will then contain the only copies of the files you've deleted from the internal drive, so you'll need a seond external drive large enough to back both the other drives up on.
If you can't comfortably clear a minimum of 30GB off the internal drive, you really need a larger internal drive right now, and you shouldn't bother fooling around with the inadequate one you have — you'll just quickly overfill it again.
3. Replace the optical drive in your MBP with a large conventional hard drive, giving you two hard drives inside the machine. You will then need one or more external drives large enough to back up both of the internal drives.
If you sense a theme here — back up, back up, back up — you are correct. It's flat-out foolhardy to own or use a computer without maintaining complete, up-to-date backups of everything at all times. -
Do external hard drives mounted on my Mac get backed up by time machine on a time capsule wireless apple external hard disk? How can I see what folders have been actually backed up in the external wireless disk? any help would be appreciated
They can provided you remove them from the Exclude list. Normally, Time Machine does not automatically backup external drives.
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Erasing all music from iTunes and starting over from an external hard drive
Hello,
I tried moving all my media to an external hard drive to make room on my MacBook Pro and just be able to run the media (ie music movies etc) from the external hard drive when it was connected.
Well this backfired big time probably because I did not follow any sort of instructions.
1st I backed up Finder > music > iTunes > iTunesMedia folder to two seperate external hard drives just in case.
2nd I think (this was back in March 2013) I decided to cut/delete the folder Automatically Add to iTunes and moved it to one of my external hard drives (this folder for some reason contained mostly everythiing that was in the iTunes Media folder).
3rd I finally decided to erase content from iTunes Media Folder
4th I deleted the iTunes Media folder because I felt it was stupid to have a "iTunes Media folder" and "iTunes Music Folder" in the same place but not actually have anything in the iTunes Music folder (probably really stupid of me in retrospect)
5th I unchecked the box under iTunes > Preferences > Advanced "Copy files to iTunes Media folder when adding to library"
6th I believe I changed the location of "iTunes Media folder location" in the Advanced area under Preferences thinking this should be pointing to my external drive
I then believe I tried to run iTunes and play my content, but when I did all it did was copy my music/media back to my MacBook Pro hard drive but I did not realize it was doing this until later the next day when I tried to play some music and realized I had 3 copies of everything in my iTunes program (ie music movies podcasts tv shows etc) however, I could play all three versions of whatever it was I selected there was no "error message" saying that iTunes could not located that file, would you like to try and locate.
So I checked Finder to see if there were 3 copies of everything (by the way at this point I stopped connecting my external hard drive for the sake of making more copies on iTunes) but there wasn't??? So I tried to go through Option+View > Show Exact Duplicate Copies and delete all but one of the items. When I would delete them and it asked if I wanted to move them to my Trash Bin I clicked yes and all the 2nd and 3rd copies were gone!!! Yeah, so when I played those songs/movies that remained they would play!!!!!
Than I realized that my Internal Hard Drive was almost full and went looking around for things I could delete to help make my MacBook run better, and realized that my Trash had a large amount of data in it and that emptying it would significantly reduce space on my Internal Hard Drive, but when I went back to iTunes and selected music or movies to play it placed the infamous "!" next to that track or movie and it could not locate those items anymore?
Long long long story short hopefully, can anyone help me set up iTunes so that it only can play content/media off of my external drive and not take up space on my internal hard drive? Is this even possible to do that or will always start to copy those files from the external hard drive back onto the internal hard drive? and second is there anyway to use the Apple router external hard drive to use as the source for all my media?
PS I am running Mac OS X Lion version 10.7.5 and iTunes 11.1.3 (8) 64-bit2012EVOL wrote:
Hello,
I tried moving all my media to an external hard drive to make room on my MacBook Pro and just be able to run the media (ie music movies etc) from the external hard drive when it was connected.
Quit iTunes.
Copy the entire /Music/iTunes/ folder to the external. Don't only copy the iTunes media folder.
Hold Option, launch iTunes, select Choose library... and select the iTunes folder on the external.
This is all you need to do.
Everything for iTunes (except the application) is on the external.
2nd I think (this was back in March 2013) I decided to cut/delete the folder Automatically Add to iTunes and moved it to one of my external hard drives (this folder for some reason contained mostly everythiing that was in the iTunes Media folder).
Make a shortcut to this folder on your desktop.
Nothing should be in this folder. When you put a file here, it will get moved by iTunes and added to the library.
The reason it had files in it is because you moved it. -
I'm attempting to migrate files, address book, maile, etc to my new Mac Mini using an external hard drive and Migration assistant. I followed the instructions on using Migration Assistant to do this but Migration Assistant is not seeing the external drive, which is displayed on my desktop
I've been chasing this problem all afternoon. I had to reformat my internal drive on my MBP and reinstall Mountain Lion Start up assistant wouldn't see my extrnal drive with the Time Machine files on it. After many tries, I skipped the restore there and let the system boot. I could see my external drive from Finder and the files looked OK. I was told to use Migration Assistant and it had the same problem.
I saw a hint on one of these posts that the icon that you see and is label Macintosh HD is actually your backup disk and it is telling you that it has a copy of your internal Macintosh HD. I went ahead and told it to continue and it started to restore my apps, settings, and documents. It's been going for a couple of hours, and is close to being done. I expect to see my old system restored when it is finished.
Wish that Apple would put some type of note that it is seeing the backup. That is most confusing and seems to be a problem for lots of users.
It's been a month or so since your post Did your get it to work? -
How do you start up from an external hard drive
I read the one post about this but i was un clear. Im trying to find out how to do this for my friend with a G3 that is no longer working. They have an external hard drive that is firewire and the newest version of tiger. So if someone could give me a step by step guide how to install tiger on the external hard drive and then run it that way, that would be great. Thanks to anyone who answers and helps.
I was fooling around with my iBook and an external harddrive where I used CarbonCloner to clone my system. When that was done I found this link:
http://docs.info.apple.com/article.html?artnum=75459
Here it says I should:
Press Option-Command-Shift-Delete during startup
Bypass primary startup volume and seek a different startup volume (such as a CD or external disk)
I tried this and my iBook started up from my external harddrive....I think.....i actually couldn't tell the difference by looking at the desktop, everything seemed exactly the same, I guess because I booted from a cloned system....but when I used the keyboard sequence above, I noticed my external harddrive spinning and thought it was doing the work to start up my computer.
I don't think starting your computer using Target disc mode is right for you....
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