External hard drive for maintaining Mavericks after Yosemite upgrade

Hey guys,
Here's my situation. I have some software that won't be compatible with Yosemite in the fall but I want to be able to continue to use it as I do with Mavericks. Can I get an external hard drive like G aluminum 1T model and run OSX 10.9.4 and this software on it and still upgrade my mid 2010 macbook pro to Yosemite?
Thanks,
Mike

After you get the external drive, attach and open Disk Utility. Choose the new drive from the left sidebar, then in the main panel choose Partition and set the number of partitions you want...you can use the default of 1 if that is what you want. Then Name the drive so you can spot it on the desktop. Format should be Mac OS X Extended (Journaled), and partition table GUID. Apply and confirm you want to erase the drive. Close Disk Utility.
Now, you can use a program like Carbon Copy Cloner (now costs $40 but you can use if for free for 30-days) to make a bootable clone of your current drive on the external drive. That way you have everything from the internal and you can boot your current Mac OS X if you want to or Yosemite after that comes out.
You will then have options

Similar Messages

What external hard drives for backup are compatible with Yosemite?

I have an early 2013 MBP Retina 15" and have installed Yosemite. I want to purchase an external hard drive for backup via Time Machine. I have read that Western Digital drives were associated with data loss with Mavericks; I do not know if that has been corrected. Has anyone backuped successfully on an external hard drive with Yosemite installed, and if so, can you let me and others know the brand and model. Many thanks.

Understood.
I don't receive any compensation for promoting any product from any computer, hard drive or computer peripheral manufacturer. I don't receive any compensation from any of those manufacturers or sellers for any reason. In fact I was not promoting any product, I was responding to the poster's query and was stating that I have observed the drives in use and working with the Mac OS.
My workplace is a consumer of these items and we buy and use thousands of PCs, Macs, WD and non-WD drives, and so forth. I was providing information about whether WD drives work with Macs running various operating systems. I don't promote any particular brand, we use many different ones here.

What is the best external hard drives for macbook pro?

I am looking to buy an external hard drive for my macbook pro urgently.
I was intending to purchase a time capsule but am really concerned with the reliability concerns of the time capsules where they stop working after 6 months to 18 months as posted on various forums.
I was considering purchasing a western digital external hard drive but they also receive a lot of negative feedback.
I have never used firewire previously but am interested in getting feedback as to how useful forum readers find this feature.
In terms of size am looking for 1TB approx.
Thanks in advance for your assistance as i need to purchase one immediately and i do not have time to research fully. Make, model number and approximate cost would be very helpful as well as where i could purchase hard drive in london. I am more concerned with quality rather than cost.

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Choosing an external hard drive for back up

This is more for general advice than a specific question. Right now I have my hard drive partitioned and use the second as a backup with Time Machine. It will work for most situations but not all, such as a home fire or break-in (all my photos and music, lost forever!).
What I want to do is buy an external hard drive for backup and keep it at work. I would then bring it home every few weeks to update, but otherwise not store it in the same place as my computer. That way I would never lose more than a few weeks worth of stuff. So, a few questions, the nature of which will let you know how much of a novice I am at this.
1) Right now, Time Machine automatically updates once per hour. When I am using the external drive will I be able to set Time Machine up to only update my back up files when I connect the external drive. Is this difficult.
2) Any suggestions on what kind of external hard drive I should buy, or what features I should look for would be appreciated. I live in a remote area, so something I can get from futureshop.ca would be preferable.
3) My hard drive is about 280 GB. What size should I buy.
Advice on any of the above would be appreciated. Also feel free to toss in anything else you think I should know or consider.
Rgds
PF

Snowfog wrote:
This is more for general advice than a specific question. Right now I have my hard drive partitioned and use the second as a backup with Time Machine. It will work for most situations but not all, such as a home fire or break-in (all my photos and music, lost forever!).
What I want to do is buy an external hard drive for backup and keep it at work. I would then bring it home every few weeks to update, but otherwise not store it in the same place as my computer. That way I would never lose more than a few weeks worth of stuff. So, a few questions, the nature of which will let you know how much of a novice I am at this.
1) Right now, Time Machine automatically updates once per hour. When I am using the external drive will I be able to set Time Machine up to only update my back up files when I connect the external drive.
This is what I am currently doing among 3 different backup disks (1 Time Capsule, a WD500GB, and a Lacie 160GB). You won't have to "set" anything up other than attach the new drive and select it in the TM prefs. Then when your done, reselect your normal TM disk.
2) Any suggestions on what kind of external hard drive I should buy, or what features I should look for would be appreciated. I live in a remote area, so something I can get from futureshop.ca would be preferable.
Most any drive will do, as you partition it correctly to begin with.
*_How Should a Time Machine Hard Disk be Prepared?_*
For Time Machine to work properly, the hard disk must be formatted “Mac OS Extended (Journaled)” and its’ Partition Scheme should be either GUID or Apple Partition Map.
Time Machine is incompatible with disks partitioned as Master Boot Record (MBR). Unfortunately, this describes nearly every hard drive you can buy because MBR is a Windows partition scheme. (Naturally, this DOES NOT apply to Apples’ Time Capsule.)
For some, Time Machine begins to perform as expected with a new external hard disk. But then the initial full backup or subsequent incremental backups fail. The user only later discovers the hard disk was still partitioned as Master Boot Record (MBR).
One article on Time Machine made this observation: “Virtually everybody will have to open Disk Utility and repartition the disk as APM or GUID. It doesn't really matter which one because the Time Machine disk will not be bootable anyway. APM allows a disk to boot a PowerPC, GUID allows the disk to boot an Intel processor but both are easily digestible by Time Machine on either kind of processor.” [http://www.girr.org/mac_stuff/backups.html]
It’s been recommended by many here that your reserve +at least+ double the size of your primary hard disk, that way Time Machine backups have room to grow as the size of your data grows. Additionally, the more space you give Time Machine the more history it can preserve. The less space you reserve for Time Machine the sooner older backups & deleted items will disappear.
One poster recommended this regarding multiple partitions: “If you do create multiple partitions (half and half would be a good place to start), make sure you use the first partition for Time Machine, and the second for your own stuff (the first one will be on top in the graphical representation shown in Disk Utility; you'll understand when you see the partition tab). This way, you can expand the Time Machine volume at any later time by deleting the second partition. Disk Utility allows this dynamic re-sizing of volumes, but volumes can only be expanded toward the end of the drive, when a volume that comes after is deleted to create the room.” [http://discussions.apple.com/thread.jspa?threadID=1712437&tstart=0]
Procedure
Connect the hard disk you wish to use for Time Machine backups.
Launch Disk Utility.
It will appear twice in the pane on the left. (Make sure you recognize that it is different from the 2 icons that represent your Macs' internal drive.) The upper entry represent the device as a whole, including the controller inside. The lower entry represents the hard disk contained within the device.
Click on the upper icon of the external hard disk.
Select the "Partition" tab.
For "Volume Scheme" choose "1 partition". (Choose 2 partitions if you intend on storing other data on the disk besides your Time Machine backups. Ensure that the two partitions have different names.)
Name the disk.
Format should be "Mac OS Extended (Journaled)".
Click "Options".
Select either GUID or Apple Partition Map. (See above for significance)
Click "OK".
Click "Apply". Then click “Partition”.
Once the external hard disk is repartitioned, select it again in Time Machine preferences and use it for your backups. If you chose to create 2 partitions, then select the first partition for Time Machine backups, and the second for additional files/folders.
3) My hard drive is about 280 GB. What size should I buy.
Any TM backup drive should be +at least+ twice as large as your Macs internal hard disk.
Let us know if this resolves your issue.
Cheers!

External hard drive does not mount after sleep

I am using a brand new Seagate 2 TB external hard drive for my backup drive. More often than not, when the computer goes to sleep, the icon for the drive is gone from the desktop when the computer wakes up. I have to unplug it from the computer and reconnect it, then it mounts and works fine. I have it plugged directly into the computer's USB port. The drive uses USB3. As far as I can tell, it does not exceed the power requirements of the USB port. It is the only external hard drive I am using at the moment.
I should note that the same thing was happening with my last hard drive. That was a Western Digital 250 GB drive with an independant power source connected by firewire.
I am running OS 10.6.8 on an Intel circa 2009 iMac. My external drives worked fine for years, and it seems in the last year or so is when this started happening.

r_dizzle wrote:
Another point of note is that both the HD and the keyboard are connected to the iMac through a 7 port USB hub.
I think this might be the issue. If the iMac is waking back up, it will likely be waking up this HUB, but the HUB might not be re-initialising the connection between OS X and the external drive or the keyboard.
After waking the iMac, if you unplug the external drive from the HUB, then plug it back in again, does OS X pick it up again? Have you tried plugging the external drive directly into the iMac and then testing what the result is?
If you read back on what you've said, you pointed out that you have a USB mouse that you use to wake the iMac from sleep. Is this mouse directly connected to the iMac? If so, it surely can't be a coincidence that a directly connected USB device can wake the iMac from sleep, but any USB devices connected to the iMac via a USB HUB cannot.
I would suggest you test the drive as it is directly connected to the iMac. I would complete the same test with the keyboard too. I think you'll find it's the USB HUB.
I hope this helps.

Seagate external hard drive is not working since I upgraded to yosemite. Can some one help me?

I can't connect my seagate external hard drive since I updated to yosemite. Im getting error code 71, can someone help me?

Try restarting with your drive plugged in. I have a very old 100GB seagate drive and it has been working fine for me so I assume yours would too.
-crazy

Want to partition a new External Hard drive for both pc and mac

Hello!
I am going to partition a new Seagate external hard drive for both my pc and mac. What format do I choose for the PC partition? MS-DOS (FAT), ExFAT, or Free Space.
Thank you!
Nikki

If I may suggest:
Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
7. After formatting has completed select the main entry for the new drive (mfgr.'s ID) then click on the Partition tab in the DU main window. Click on the large partition rectangle then click on the Add [+] button. The partition should divide into two equal volumes. Resize as you prefer. Select the second or bottom volume to use on the PC. Set the format type to ExFat, then click on the Apply button. Wait for the two volumes to finish mounting on the Desktop.

Advice on external hard drives for Macbook pro

I am looking to buy an external hard drive for my macbook pro urgently.
I was intending to purchase a time capsule but am really concerned with the reliability concerns of the time capsules where they stop working after 6 months to 18 months as posted on various forums.
I was considering purchasing a western digital external hard drive but they also receive a lot of negative feedback.
I have never used firewire previously but am interested in getting feedback as to how useful forum readers find this feature.
In terms of size am looking for 1TB approx.
Thanks in advance for your assistance as i need to purchase one immediately and i do not have time to research fully. Make, model number and approximate cost would be very helpful as well as where i could purchase hard drive in london. I am more concerned with quality rather than cost.

Opinions vary and people have different experiences ...
I'd recommend the LaCie 1TB Quadra drive at £134 it has eSATA, USB2 and FW400 and FW800 Interfaces (it comes with all four cables) and I've found them reliable and rugged.
http://www.lacie.com/uk/products/product.htm?pid=11158
http://www.lacie.com/uk/wheretobuy/index.htm

Need to reformat external hard drive for time machine?

Hello,
We recently purchased an external hard drive for our family iMac after we had to have a new hard drive put in. We picked up a Western Digital 1tb My Book (http://www.wdc.com/en/products/Products.asp?DriveID=725). I set up the external hd with time machine and all was fine for about a month.
An error message of "The backup volume is read only" started appearing. I attempted to repair the disk through these directions http://support.apple.com/kb/HT3275#1 but when I was trying to follow the steps, I think I disconnected the external hd without dismounting it, so now I'd assume I need to reformat the external hd. I can't seem to find instructions on how to do this. Where should I look for reformatting my external hard drive?
Any other tips or suggestions would be greatly appreciated.

Hard Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (for Intel Macs) or APM (for PPC Macs) then click on the OK button. Click on the Partition button and wait until the process has completed.
Message was edited by: Kappy

The best external hard drives for macs

Can anyone recommend a good external hard drive for a mac computer; preferably the IMac OS 10.5.6 desktop. Thanks!

Personal Experience with the One Touch Series:
Keep a VERY CLOSE EYE on that Maxtor One Touch!
I had two of the 1TB Firewire 800 models at one point. Hard drives failed on one of them within a month. Warranty replaced the unit but not the data. After a year, the tiny fans died and the drives overheated, resulting in total loss of both enclosures and all the data on them (within a week of each other).
Those things are not meant for continuous use. If you only use them for periodic backup purposes, and then shut them off, they may be fine.
Maxtor's setup software for the Mac was a PITA, too. The version included on the disc was worthless. Disk label indicated one version, actual version on the disc was an older, incompatible version. Maxtor sent a replacement disc. It was the same disc with the same problem. Finally located the correct installer on their website. That was a few years ago.
I'll never touch the touch series again as a result.
On the other hand, I've had a SmartDisk FireLite 60 GB (FireWire model) for my Powerbook for 5 years now with excellent performance. I have no problem recommending SmartDisk drives.
-mt

Do you need a special external hard drive for iMac?

Do you need a special external hard drive for iMac?

Any external hard drive that will connect via Firewire 800, USB, or Thunderbolt will work.
I have a 750GB Western Digital Scorpio drive in an OWC case, sitting on a Backpack, which connects via Firewire. Western Digital Scorpio drives have 5 year warranties, the OWC (macsales.com) cases usually use the Oxford chipset which works well with macs, and the Backpack is a slick way to mount a backup drive without taking up desk space.
After you hook up whatever external drive you end up with, you'll partition and initialize it for OS X, then begin using it.
My opinion, I would not get a Western Digital pre-packaged external drive/case. While the hard drives are OK, there have been a number of people that have had issues with the electronics.

External hard drive for iPhotos and itunes

I want to move my iPhotos and iTunes libraries to an external hard drive. What are the best external hard drives for a
1. iMac running OSX Yosemite version 10.10.1
2. MacBook Air (I actually want to store my iPhotos library stored currently on my old macbook pro to an external drive but access the library with my new MacBook Air.

My personal preference for EHDs are these: OWC Mercury Elite Pro. I have 6 of them and have no problems with any of them. Be sure to format any drive you get to OS X Extended (journaled) with ownership set to be ignored.
To copy the iPhoto library to the EHD just drag the iPhoto Library package from your Pictures folder to the EHD. When the copying is completed launch iPhoto with the Option key held down and select the EHD library to open it. Once you've confirmed that the EHD library is good and working as expected you can delete the library from your Pictures folder.
Ask in the iTunes forum on how to move the iTunes library.

How can I use one external hard drive for both Time Machine and iPhoto Library?

I have been using a 1 TG LaCie external hard drive for Time Machine backups. My (older) Mac has 160 GB and is almost full. I would like to move my iPhoto Library to the external hard drive, but I've heard Time Machine doesn't share one space well. Should I
1. create another partition (but will this erase what I've already saved) with Disk Utility? *I am running Snow Leopard*
2. create another volume to use for iPhoto, and if so, should the two volumes be of equal size?
3. leave it with one partition and move the iPhoto Library to the same partition with Time Machine back ups?
I know I don't need the entire 1 TG for back up of 160 GBs. Please advise the best path to take. Thank you!

You are getting incorrect information from your ASP. If you look at drive specifications the heat generated is no different for high vs low capacity drives.
I have upgraded the internal drive in my iMac 2007 with a 3TB Hitachi drive without any heat issues or other problems.
Larger hard drives have higher density platters so to access any given amount data the drives travel a shorter distance. Higher capacity drives should therefore run cooler than lower density drives because the drive spends less time spinning to access data.

I need to buy an external hard drive for my MacBook Air as it is almost full. Which one should I buy?

Do I need to buy an Apple external Hard Drive for my MacBook Air?

There is no such thing as an Apple hard drive, ...Apples doesnt make same.
avoid western digital if possible.
Yes, having an external HD is necessary for data backups and keeping large media files for packing around etc.
you need data redundancy.
best options for the price, and high quality HD:
Quality 1TB drives are $50 per TB on 3.5" or $65 per TB on 2.5"
Perfect 1TB for $68
http://www.amazon.com/Toshiba-Canvio-Portable-Hard-Drive/dp/B005J7YA3W/ref=sr_1_ 1?ie=UTF8&qid=1379452568&sr=8-1&keywords=1tb+toshiba
Nice 500gig for $50. ultraslim perfect for use with a notebook
http://www.amazon.com/Toshiba-Canvio-Portable-External-Drive/dp/B009F1CXI2/ref=s r_1_1?s=electronics&ie=UTF8&qid=1377642728&sr=1-1&keywords=toshiba+slim+500gb
Best small HD for the money:
2.5" USB portable High quality BEST FOR THE COST, Toshiba "tiny giant" 2TB drive (have several of them, LOT of storage in a SMALL package) $117
http://www.amazon.com/Toshiba-Canvio-Connect-Portable-HDTC720XK3C1/dp/B00CGUMS48 /ref=sr_1_4?s=electronics&ie=UTF8&qid=1379182740&sr=1-4&keywords=2tb+toshiba
*This one is the BEST portable external HD available that money can buy:
HGST Touro Mobile 1TB USB 3.0 External Hard Drive $88
http://www.amazon.com/HGST-Mobile-Portable-External-0S03559/dp/B009GE6JI8/ref=sr _1_1?ie=UTF8&qid=1383238934&sr=8-1&keywords=HGST+Touro+Mobile+Pro+1TB+USB+3.0+7 2 00+RPM
Most storage experts agree on the Hitachi 2.5"
Hitachi is the winner in hard drive reliability survey:
Hitachi manufacturers the safest and most reliable hard drives, according to the Storelab study. Of the hundreds of Hitachi hard drives received, not a single one had failed due to manufacturing or design errors. Adding the highest average lifespans and the best relationship between failures and market share, Hitachi can be regarded as the winner.

How do i use an external hard drive for all my itunes music?

how do i use an external hard drive for all my itunes music?

Hi valleydave,
Here are two good links for you to check out:
http://support.apple.com/kb/ht1751
http://support.apple.com/kb/ht1449
The first one goes over, in-depth, what you're looking for in regards to "off site" iTunes.

External hard drive for maintaining Mavericks after Yosemite upgrade

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