When installing to Lion, should external hard drives be disconnected?

I want to install Lion on my iMac. It is currently running version 10.6.8. I have 3 external hard drives connected to the iMac. Should I disconnect them before installing Lion? Thanks...

No need to disconnect any external drives. The Lion installer will let you choose which volume to install to.

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On installing Maverick, should external hard drive be disconnected?

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When I install maverick! should the external hard drive be disconnected?

You should have a current backup of your system before the upgrade.
Theoretically no you do not need to disconnect,
but I would highly recommend it since you do not want to risk anything going wrong.

How can I edit lightroom 5 smart previews on mac book pro (mbp) when the lightroom 5 master image files are on my external hard drive is disconnected from the mbp

How can I edit lightroom 5 smart previews on mac book pro (mbp) when the lightroom 5 master image files are on my external hard drive is disconnected from the mbp? So far when I try to disconnect the external HD from the mbp, I get the following pop up window: The disk "external hard drive A" couldn't be ejected because "Lightroom" is using it. Quit that application and try to eject this disk again. When I do that and restart Lightroom 5, the Adobe Photoshop Lightroom - Select Catalog screen pops up but doesn't list my external hard drive A as a choice.
I've reviewed Adobe's Lightroom Help | Smart Previews Lightroom 5 web page and still haven't been able to figure what I'm doing wrong. Any help would be appreciated.

Your internal HDD. by default, is named 'Macintosh HD'. From what information you supplied, it looks like there is already a Lightroom catalog installed on you local (internal) HDD using the standard naming convention Adobe uses as well as a Lightroom catalog on your external drive which you created. To be sure of which catalog Lightroom is loading when it starts up, To do this, start Lightroom as you normally would. After it starts, select the Lightroom menu item, then select the Catalog Preferences item and finally, navigate to the General tab. The Location information will tell you exactly what catalog Lightroom is opening by default. This will likely be the Photography Mac Book Pro Versions catalog on your external HDD. Once that is confirmed, you are ready to proceed. As an additional test/verification, you can shut down Lightroom and, this time, start Lightroom while holding down the ALT/OPTION key. This will cause Lightroom to pause and display a screen which will allow you to chose a different catalog to open. Navigate to the /Users/[user name]/Pictures/Lightroom folder and select the Lightroom 5 Catalog.lrcat file. When Lightroom comes up, there should be no previews or folders as this catalog should be empty. Now you can be certain which catalog is being used and which catalog has all your data and you are ready to migrate your current catalog. Shut down Lightroom.
To migrate your current catalog, use Finder to locate your Photography Mac Book Pro Versions folder on your external drive. Select the folder and select COPY from the context menu. Next, use Finder to navigate to the /Users/[user name]/Pictures/Lightroom folder on you internal HDD. You can start at the Macintosh HD level and work your way down by opening each level (Macintosh HD/Users/[user name]/Pictures). Select the /Pictures folder and then select PASTE... from the context menu. When the COPY/PASTE is complete, you should see the following files on the Macintosh HD:
Macintosh HD/Users/[user name]/Pictures/Lightroom/ and
Macintosh HD/Users/[user name]/Pictures/Photography Mac Book Pro Versions
The Macintosh HD/Users/[user name]/Pictures/Lightroom folder will contain the empty default catalog the Adobe created when Lightroom was installed and Macintosh HD/Users/[user name]/Pictures/Photography Mac Book Pro Versions will contain a copy of the catalog you created on your external HDD.
You are almost done now. Make sure your external drive is still attached for this step. Restart Lightroom using the ALT/OPTION key again. When the Select Catalog screen appears, select the Choose a Different Catalog button (lower left side). When you do, a Finder window will open to allow you to navigate to a catalog of your choosing. Navigate to Macintosh HD/Users/[user name]/Pictures/Photography Mac Book Pro Versions and select the file Photography Mac Book Pro Version.lrcat. This is the copy you just created. Select the Open button and Lightroom should start. You should see all of your previews and settings just as before. Also, in the left hand panel, all of your folder should show up and none of them should be dimmed and none of your previews should display a small exclamation point badge. Either a dimmed folder name or an exclamation point badge indicates that Lightroom can't find the associated image file. If everything looks good, go to the Lightroom menu, select Preferences and then select the General tab. Under Default Catalog, select an option to either load the LAST catalog opened or select the Users/[user name]/Pictures/Photography Mac Book Pro Versions catalog from the drop down. Shut down Lightroom and then restart it normally. This time, when Lightroom starts, you should be viewing the new copy of your catalog. You can confirm this by looking at the General tab on the Catalog Preferences screen (Lightroom/Catalog Preferences menu items). Shut down Lightroom once again and this time, eject your external drive before restarting. This time, your folders in the left hand panel will be dimmed but you should be able to work with your smart previews. If Lightroom should display a Select Catalog screen with the external drive detached, double check your settings as it indicates Lightroom is still looking at the copy of the catalog on the external drive rather than the new copy you made.
Finally, if you are seeing dimmed folders and/or exclamation point badges with the external drive attached, this indicates a problem. You can select any folder and select Update Folder Location from the context menu. This will allow you to navigate to the copy on the external drive and select it. Lightroom will then update the catalog (select to synchronize the content). This will not only clear the dimmed folder problem but also remove the exclamation point badges for all photos in that missing folder. However, it may indicate that not all went well with the copy of the catalog so make sure to verify all went well. You can use the Get Info option on the two folders. You should see the same number of files/folders for both the copy on the internal drive as well as on the external drive but you can't rely on the byte count because of the possibility of differences between the geometry of the two drives. Hope this all helps!

Unable to install Mountain Lion on my hard drive

I'm trying to upgrade my early 2008 mac pro from Leopard to Mountain Lion using a bootable usb drive but I'm having trouble doing so. When I try installing mountain lion to my hard drive (Mac Drive 1) - The hard drive is greyed out and says 'you can't upgrade this version of OS X'. Yet it looks like I can install mountain lion onto my second hard drive (Mac Drive 2) for some odd reason.
Here's the details for my mac drive 1 which I'm having trouble with (I noticed the volume format is greyed out on disk utility as well).....
And here's the mac drive 2 info which I don't want to install mountain lion onto but looks like I can....
Any help would be much appreciated! Thanks a lot.

I can't answer the bad hard drive question without some guessing. Not that smart.
Do you have a bootable copy of the Mountain Lion installer?
If not download the following. The site says it will work with 10.6:
http://blog.gete.net/lion-diskmaker-us/
That program will allow you to make a bootable DVD or USB with Mountain Lion on it.
You can boot off of it, erase the disk, and then install Mountain Lion.
I think you should be able to reinstall from carbon copy cloner, but I haven't used that program. During the setup it will ask you if you want to import files, but I don't know if it can read carbon copy cloner. I know it can read a Time Machine backup.
A clean install is generally better anyway.
If you get Mountain Lion installed, not everything works like it did in 10.5/10.6. For an example, scrolling is reversed, but you can change it back to the way it is in 10.5/10.6 in System Preferences. After spending some time in System Preferences, my computer acts pretty much the way it always did.

Can I install Bootcamp on an External Hard Drive?

*Bootcamp on External Hard Drive?*
Can I install Bootcamp on an external Hard Drive? I don't see why it wouldn't work. Do I need to install the Mac OS on the external Hard Drive first, then Bootcamp?
Parallels
Another question. Does Parallels allow you to not have to use the "option" key to boot into Windows? I mean if I use Parallels can I use XP or Vista at the same time as my mac applications?
What, (if any) are the drawbacks to using "Parallels"?
*What Options are there...*
Is it possible for Apple to allow users to program a key on their keyboard, when pressed will bring up Windows so they don't have to always restart? I need to switch between Windows and mac OS quite often and it's a real pain to always restart. What options do I have?
Thanks

Hi Paint Guy,
*Bootcamp on External Hard Drive?*
Can I install Bootcamp on an external Hard Drive? I don't see why it wouldn't work. Do I need to install the Mac OS on the external Hard Drive first, then Bootcamp?
By Microsofts Design no Windows can be installed and booted from external HDs. BootCamp just follows this.
However, according to this http://tubeshards.wordpress.com/2006/12/05/install-windows-to-a-macintosh-usb-dr ive/ it can be done.
Parallels
Another question. Does Parallels allow you to not have to use the "option" key to boot into Windows? I mean if I use Parallels can I use XP or Vista at the same time as my mac applications?
What, (if any) are the drawbacks to using "Parallels"?
Parallels is an OS X application which don't need a restart of your Mac to run Windows.
Therefor you can run OS X and Parallels Windows side-by-side.
Main drawback is, that Windows runs not native (on the real hardware) but in a virtualized environment.
While this is more than acceptable for 'standard' Office programs, any program that needs direct hardware access (especially games and 3D-programs) either do not run at all or run at noticeable slower speed.
Also you have to realize that the amount of RAM in your Mac is divided between OS X and Parallels Windows.
*What Options are there...*
Is it possible for Apple to allow users to program a key on their keyboard, when pressed will bring up Windows so they don't have to always restart? I need to switch between Windows and mac OS quite often and it's a real pain to always restart. What options do I have?
BootCamp is no option then, since it needs a reboot everytime you want to switch between OS X and Windows.
Parallels (and VMWare Fusion and VirtualBox, BTW) run alongside OSX.
Thanks
You're welcome. Hope it helps.
Have Fun
Stefan
Message was edited by: Fortuny

Can i install wow on an external hard drive?

Can i install wow on an external hard drive and play it off that, cause im runing out of space on my computer.

If you are going to install WoW to a external hard drive I suggest getting a eSATA external hard drive. There is a noticable drop in performance when trying to use a external USB drive to run games from.

When i click on my external hard drive the screen goes dark and a msg pops up saying i have to shut down my computer by holding the power button and then restart it. when i do that i get the same result every time. it worked perfectly last night..

when i click on my external hard drive the screen goes dark and a msg pops up saying i have to shut down my computer by holding the power button and then restart it. when i do that i get the same result every time. it worked perfectly last night..

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Ifou don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the Console window, select
DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar.
There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.
If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
Please don’t post other kinds of diagnostic report.
I know the report is long, maybe several hundred lines. Please post all of it anyway.

Malignant secondary boot device. When I plug in an external hard drive which has time machine in one partition and a secondary boot device in another, the secondary boot takes over and wipes existing files. How do I turn it off but keep the time machine

Please help new (senior) convert to Mac Pro (OS X). Am following the 'switching to a Mac' portable genius 2nd ed, and as it advised, I bought an external hard drive (a Mac My Word) and partitioned it with one partition for a secondary boot device and another for time machine. Book implied I needed both. Seemed to download OK but now when i plug in the external hard-drive it wants to reboot me fresh all over again. How do I keep the time machine partition going but have the secondary boot device only in case of emergencies? Do I 'eject' that partition- and if so how do I do it from outside the hard drive (I am not game to reattach it currently)

Launch the System Preferences application (under the Apple menu) and select the Startup Disk preference pane. Set your internal drive as the startup disk. Close the window.

When I plug a LaCie external hard drive into my new Mac mini, [os 10.9.1], to use with Time Machine it effects the performance of my internet and email. Turn off Time Machine and unplug the hard drive and the internet and email are working normally again

When I plug a LaCie external hard drive to work with Time Machine into my new Mac mini, [OS 10.9.1] it drastically effects the performance of the internet and email, turn off Time Machine, unplug the hard drive, internet and email go back to normal. Why?

Maybe:
http://www.macobserver.com/tmo/article/usb-3.0-hard-drives-can-cause-wi-fi-inter ference

Help! When i connect my "iomega" External hard drive to my mac it does not show in devices or on the desktop, how can i access my hard drive?

Help! When i connect my "iomega" External hard drive to my mac it does not show in devices or on the desktop, how can i access my hard drive?

what format your iomega HD is it NTFS , if NTFS try download http://www.apple.com/downloads/macosx/system_disk_utilities/ntfs3g.html

How can I install ntfs on an external hard drive so that my Samsung Smart TV can see my media files? Or is there a better option?

How can I install ntfs on an external hard drive so that my Samsung Smart TV can see my media files? Or is there a better option?

OS X cannot natively write to a drive formatted as NTFS, nor can it format a drive as NTFS. There are third-party NTFS drivers available on the market.
Just out of curiosity: Even with NTFS, how is your TV going to access the external hard drive? Does the TV have a USB port?

Message when installing OS X Mavericks locked hard drive

Message when installing OS X Mavericks locked hard drive,copule you help me how to solve

Your drive is sometimes locked when it has unreapired damage.
Boot to Recovery_HD, launch Disk Utility, slect your Macintosh HD, and click (Repair Disk). Run again until it comes clean or gets stuck.

Looking to move data from OSX 9 to Mountain Lion using external hard drive?

Looking to move data from OSX 9 to Mountain Lion using external hard drive?

Thanks. I'd like to get rid of this OSX 9 after retrieving a few files. If I wanted to erase it's hard drive before I do so, would powering off then on again and immediately start tapping the F10 button do the trick as it does with a PC?

If it is possible to install linux on a external hard drive?

If it is possible to install linux on a external hard drive, which can be boot from the my MacBook Pro? the reason I didn't try it is beacause that I don't know what it will do to my internal mac os x 10.5? Will it mess up my boot to my leopard?

it's possible, but difficult. i'm in the middle of trying to get this to work on my MacBook, but not there yet. The best resource i've found is here:
http://ubuntuforums.org/showthread.php?t=510030
from what i've learned so far, in order to be able to boot linux on an external drive, the actual /boot partition must be on your internal drive. osx leaves a small (~130MB) partition unused, which can be used for this.
i think it would be easier to run on a partition of the internal drive, but now that i've started trying the external setup, i really want to make it work.

When I save photos to external hard drive they lose the names I have typed in

when I save photos to external hard drive they lose the names I have typed in on the MacBook

Hello and thank you for your reply. When I export, this is what I have used:
File Settings:
Image Format: JPEG
Color Space: sRGB
Quality : 80-100
I have not checked the box for "output sharpening", although I did minor sharpening as part of my edit process in LR.
For Image Sizing, I have not changed anything. This is what is currently selected: "resize to fit" box is checked and "long edge" is selected, 500 pixels. Resolution 72 pixels per inch. The "don't enlarge" button is NOT checked.
I'm hoping this is where my issue resides!!
Thank you!

When installing to Lion, should external hard drives be disconnected?

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