Why do you need a usb bootable drive to do a clean install of Mavericks (or any other OSX)?

I have had a few minor bugs with Mavericks, and I finally got an external hard drive, so I decided to do a clean install of Mavericks.
Every single tutorial I've found online has suggested making a usb-bootable drive to reinstall the os with. However, I simply backed up the things I wanted to save on my external hard drive, restarted holding Cmd+R and went to disk utility, erased my Macintosh HD in the correct format, then went over to the install Mavericks tab on the recovery mode screen. Now, I understand it takes a little longer to do it this way, but it's only got about an hour left, and I started the reinstallation about 20 min's ago.
Besides the much longer time to wait for the OS to reinstall using my method, without a USB drive, what is the disadvantage of simply doing it all through the recovery mode boot screen via wifi? I know I could have done the bootable drive on my external hd, but I'd rather not mess with partitions on this drive...it's just got my documents, music, movies...etc, and I'd like to keep it that way.
Any info would be appreciated.

Besides the time difference and the data used on your network connection they are the same.
Actually there is one difference depending on when the USB installer was made the software you load might be out-of-date. When you download from a Apple you know you are getting the latest versions. So if you do use a USB stick to install make sure you run a software update before doing anything.

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How can I wipe hard drive and do a clean install of Mavericks?

I have a 2012 MacBook Pro that is terrible sluggish, probably from upgrades and semi-deleted Symantec software. I want to wipe the hard drive and do a clean install of Mavericks. I have all files backed up, and can reinstall software.
I think there is a way to do this with Disc Utility? But don't know how. Advice welcome

If you have Yosemite installed and want to reinstall it, do a backup, preferable 2 separate ones on 2 drives. Boot to the Recovery Volume (command - R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair and Repair Permissions until you get no errors. Reformat the drive using Disk Utility/Erase Mac OS Extended (Journaled), then click the Option button and select GUID. Then re-install the OS.
OS X Recovery
OS X Recovery (2)
When you reboot, use Setup Assistant to restore your data.

Why do I need to Clone a drive partition...

...if I'm installing a new OS to another one??
I've got Panther--my current, albeit outdated, boot OS--installed on one partition of my Dual G4 (and yes, the limitations of this computer is one reason I'm not on Leopard yet)--and trying to install Tiger onto the 2nd partition (which will hopefully tide me over until I upgrade to a new iMac or Powerbook w/ Leopard). I don't have much experience upgrading to a new OS while one is working, so hopefully the older/current one will act as a backup safeguard if the newer one acts up.
Anyway, I haven't been able to install it yet--for whatever reason, it's not progressing beyond "Verifying Destination Volume," and I can't seem to verify the partition in Disk Utility due to Authentication issues, but that's ANOTHER issue--but unless that directly relates, I can't figure out WHY everyone keeps telling me that I should clone either drive (using Carbon Copy).
I already have all the important PERSONAL files from the current boot partition--and everything on the 2nd partition I'm trying to install to--backed up onto an external.
So why do I need to clone either drive?? Just trying to clarify here...

phasmatrope:
I installed the new OS, Tiger, last night (which was actually fairly easy too... although it DIDN'T ask me if I wanted to do a Clean Upgrade, or an Archive & Install, which I'd heard were both options, which DOES worry me somewhat... but I suppose that's another post). It seems to be working fine thus far.
It is hard to tell exactly what installation option was used in your installation, but it you are satisfied that your installation is working as it should, I don't think you need to be concerned about it.
I figure in a few weeks, I may try deleting the clone from my partition (how long I should wait though, and whether or not I'll need to erase the drive entirely
So long as your installation is working well, and all your data that you backed up has been restored, and you are sure you will not be losing anything of value, you may delete the clone/backup...but wait until I respond to another of your questions.
what I'm wondering is: can I copy other material to that drive in the meantime without any problem?? After all, it IS a 300GB drive, and since I'd only cloned the 37 or so GB of my old boot partition there, I should be able to fit the 45 GB that are on the second partition onto there.
I suggest that you partition your 300 GB external HDD so that it can accomodate all your needs.
• Partition your HDD so that one partition is approximately the size of your internal HDD. Then you can clone your new installation to that partition, and make regular backups to that partition.
• You can create a second partition to accomodate the material of the second partition of the drive you clone. Give yourself sufficient room for expansion.
• Create other partitions one possibly just for scratch, saving odds and ends or whatever.
Here is a step-by-step procedure for partitioning:
Formatting, Partitioning Erasing a Hard Disk Drive
Warning! This procedure will destroy all data on your Hard Disk Drive. Be sure you have an up-to-date, tested backup of at least your Users folder and any third party applications you do not want to re-install before attempting this procedure.
Formatting an External HDD
Connect external HDD to computer
Turn on external HDD
Start up computer and log in
Go to Applications > Utilities > Disk Utility and launch DU.
Select your HDD (manufacturer ID) of drive to be partitioned in left side bar.
Select number of partition in pull-down menu above Volume diagram.
(Note 1: One partition is normally preferable for an internal HDD. External HDDs usually have more than one. See Dr. Smoke’s FAQ Backup and Recovery for tips on partitioning external HDD
Note 2: For more partitions than one, after you have selected the number of partitions you can adjust the size of the partition by selecting the top partition and typing in the size; then move down if more adjustments need to be made..)
Type in name in Name field (usually Macintosh HD)
Select Volume Format as Mac OS Extended (Journaled)
Click Partition button at bottom of panel.
Select Erase tab
Select the sub-volume (indented) under Manufacturer ID (usually Macintosh HD).
Check to be sure your Volume Name and Volume Format are correct.
Optional: Select on Security Options button (Tiger) Options button (Panther & earlier).
Select Zero all data. (This process will map out bad blocks on your HDD. However, it could take several hours. If you want a quicker method, don't go to Security Options and just click the Erase button.)
Click OK.
Click Erase button
Quit Disk Utility.
Please do post back with further questions or comments.
Cheers
cornelius

Why do you need an f after a float initializtion?

When you make a declaration and initialization of a float, you have to put an f after the number, correct?
Like
float productPrice1 = 285.00f;
why do you need to do this and do you need to do it in an assignment operation to?
productPrice1 = 285.00f;
What about for doubles? Would I need to use a d in place of the f?
thanks

What about for doubles? Would I need to use a d inplace of the f?
No, you need to do that to tell the compiler it is a
float, not a double. When assign to a double, you
don't need to tell the compiler it is a double. :)although nothing bad will happen if you do use a 'd' or 'D'.
Good luck in learning Java.

Why do you need to shift click to select stroke color with eyedropper tool?

Hi,
Quick question..
Why do you need to shift click to select the stroke color with the eyedropper tool?
I had the problem where I could not do this earlier and found the solution on this forum.
However I still do not understand the reason for this.
Appreciate if anyone could explain it to me.
Thanks in advance.
Nori

Hi, Nori,
If you have the red and blue rectangle selected and the Fill square selected in the tool panel, as at bottom left, then hold the shift key down and click with the eyedropper on the green stroke in the upper rectangle, then the red fill will turn green but the stroke stays blue. If you select Stroke, as at bottom right, then shift-click with the eyedropper on the green stroke, the blue stroke will turn green but the fill stays red. With Fill selected and shift-click on the yellow fill, the red fill turns yellow; with Stroke selected the blue stroke turns yellow. If you do not depress the shift key, the red and blue rectangle will become yellow and green.
It's complicated to explain, but I think that if you try it step by step it will make sense to you.
Peter

Why do you need to go about linking to services-config.xml in your flex compiler

Why do you need to go about linking to services-config.xml in
your flex compiler when you want to do remoting. It just seems like
a complicated way to do things.

Yeah I find this perplexing as well. I'm guessing it has something to do with Opalis origins perhaps.
Would be good to understand why.

Why would you need a database design before implementing?

Why would you need a database design before implementing?

977222 wrote:
Why would you need a database design before implementing?It appears from the 4 questions you put up ina 2 hour period
help me with this
Why would you need a database design before implementing?
Re: answer these quesions pls
answer these quesions pls
That you have put off doing your homework and now expect this forum of volunteers to do your research for you ....

HT1689 Why do you need my billing info if i have store credit trhough a redemed gift card?

Why do you need my billing info if i have store credit trhough a redemed gift card?

Welcome to the user to User Technical Support Forum provided by Apple.
priscillamh25 wrote:
Why do you need my billing info
It is part of the Verification process.
Do you have an issue supplying the requested Information.?
If so... Contact iTunes Customer Service
Use this Link > Apple Support iTunes Store Contact

Why do you need cellular capabilities on the Ipad?

Why do you need cellular capabilities on the Ipad? Is this only necessary if you intend to use it as a phone? Is it necessary to have if you want to Skype?

I normally like to buy from the Store. You can check it on the spot for defects.
The following apps can open/edit/save MS Documents
http://itunes.apple.com/sg/app/quickoffice-pro-hd-edit-office/id376212724?mt=8&l s=1
http://itunes.apple.com/sg/app/office2-hd/id364361728?mt=8&ls=1
http://itunes.apple.com/sg/app/documents-to-go-premium-office/id317107309?mt=8&l s=1
http://itunes.apple.com/sg/app/polaris-office/id513188658?mt=8&ls=1

Why would you need an H.264 hardware encoding device?

I am a casual user of Adobe Premiere Pro and just upgraded to CS5.5. I have been reading threads and someone said that he has problems with the Matrox encoder. I can import my video and make and DVD so why would you need another hardware solution?

I don't know how it works on Windows but on the Mac it shows up as a QuickTime component. So any application that can export a QuickTime movie (QuickTime Player, Adobe Media Encoder, Compressor, etc) can export to this component and it will utilize the Matrox hardware.
Theoretically you could set your preview file format in Premiere to the Matrox component but I don't know how well it would work.

Why do you need PVDMs?

Hi all,
Dumb question!
Why do you need PVDMs in a NM-HDV2-1T1/E1? The voice from the IP phones is in digital form, and so surely is the voice coming in over the T1/E1 - why do you need these DSPs?
thanks,
alec

You could almost call them transcoders in this case.
The default g711 codec for a given country (g711ulaw for North America, g711alaw for most everywhere else including I think the UK) is identical or nearly identical to that used on PRIs or clear-channel channelized circuits. If the g711 variant you're using for your VoIP traffic isn't the same as the g711 variant for PSTN circuit you're using, the DSPs handle that transcoding. If you're using robbed-bit channelized circuits, the DSPs have to drop a little bit of information. If you're using g729 or another low-speed codec, the DSPs have to "expand" the audio up to the PSTN channel size. And of course, the reverse of all this stuff takes place when audio comes in from the PSTN and has to be packetized and sent out on your IP network.
The DSPs are also in charge of getting the right data to the PSTN channel at the right time. T1/E1 lines have strict timing requirements and the DSPs handle transmitting bits at just the right times. Part of that is handling the de-jitter buffers that turn possibly jittery RTP traffic into a nice isochronous bitstream for the PSTN circuit, and doing predictive insertion if we don't get voice data in time to put it on the circuit.
One more duty the DSPs handle is echo cancellation from the PSTN. They "memorize" outgoing voice traffic, and then they listen for it coming back from the PSTN. If it's present, they mathematically "subtract" it from the incoming voice stream, which eliminates it.
This is not a complete list of what the DSPs do for you, but I think I hit the highlights.

HT1918 Why do you need my credit card information when I purchase songs from an already purchased Itunes gift card?

Why do you need my credit card information when I purchase songs from an already purchased Itunes gift card? If I cannot purchase goods with the prepuchased gift cards, then the card is useless and I want my money back.

We are fellow users here on these user-to-user forums, you're not talking to iTunes Support nor Apple.
Just because you are being asked to enter your credit card details doesn't mean that it will be charged for your purchases.
Is it a newly created account ? If it is then unless you use the instructions on this page when creating an account then credit card details will need to be entered before the account can be used in the store : http://support.apple.com/kb/HT2534

I need to do a clean install of maverick on my 2010 mbp what disk do i use and how do i move certain files from an external hard drive

I want to do a clean install of maverick on my 2010 mbp. I need to know what disk to use and also how i take certain files off my external hard drive and put on my computer. When I was having problems with my airport they did a clean install and they pulled files of my time machine.   however they forgot to put the partition back in for a windows side. Originally I had Parellels on my computer. After my external hard drive got corrupted i called apple and they fixed the problem but didn't have me set up the time machine except for the external hard drive. Now my only back up is from the external not from the laptop.    I am not sure how to do any of this. I am not computer savvy...PLEASE I NEED HELP>

First, you need to make a backup of your MBP onto your external drive. I suggest you start by cloning your MBP drive to the external drive:
Clone Mavericks, Lion/Mountain Lion using Restore Option of Disk Utility
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
     1. Select Disk Utility from the main menu then press the Continue
         button.
     2. Select the destination volume from the left side list.
     3. Click on the Restore tab in the DU main window.
     4. Select the destination volume from the left side list and drag it
         to the Destination entry field.
     5. Select the source volume from the left side list and drag it to
         the Source entry field.
     6. Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.
This clone is fully bootable and also contains a clone of your Recovery HD.
Second, you need to do a clean install of OS X onto your MBP as follows:
Install or Reinstall Mavericks or Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
OS X Mavericks- Erase and reinstall OS X
OS X Mountain Lion- Erase and reinstall OS X
OS X Lion- Erase and reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
This should accomplish your goals. You will have a clean install of OS X on your MBP and a bootable clone of your old system and all your files on the external drive.

How to Create a Bootable Flash Drive to do a clean install of Lion. I have tried to use the InstallESD.dmg but it still will not do a clean install so that I do not have to do a reinstall from the Recovery (That just re downloads and takes over 6 hours)?

How to Create a Bootable Flash Drive to do a clean install of Lion. I have tried to use the InstallESD.dmg but it still will not do a clean install so that I do not have to do a reinstall from the Recovery (That just re downloads and takes over 6 hours)?
The system I'm have is a Mac-mini that had SL on it and no SuperDrive. I have also call Apple Support and they have really have not been to much help over 1st did my up grade to Lion and Installed the Lion Server.... it lost my SSL that I paid for and kill almost on of my server setting, plus kill all my web servers (using apache vhosts), and not to say the LDAP will even let remote users login to your laptops.
PS: There is no way that I'm going to buy a Install USB from Apple... They have over billed me over $300.00 because the Apps Store still has bugs (Glad I did not write that App/Service)
If there is anyone that can give in the information to create a USB install stick, I would be very thinkful.

Here you are bro, courtesy of "softpedia.com"....brilliant site!!!
If you ever had problems with your Mac OS X installation you know that the first thing you should do is to check the startup volume using Disk Utility.
After the check has ended and, if the errors exceed a certain level of seriousness, the Disk Utility application will require you to restart your Mac and use its Mac OS X Install disc counterpart.
Other users may have to reinstall OS X altogether, but will find, or already know, that their SuperDrive (a CD/DVD reader and write combo drive) is not functioning properly and it will not be able to read the Install disc.
Although this might happen to Mac OS X Leopard users due to faultyhardware, the vast majority of problematic SuperDrives will be encountered inside Snow Leopard running Macs.
This is due to the updated SuperDrive firmware included in either the Install disc or the software updates one has to install to reach the latest version of OS X, namely 10.6.6.
This can be fixed by flashing the SuperDrive’s stock firmware using free command line tools that one can find for free online (I will write about this process also, but at a later time because this article only focuses on allowing you to create your own alternative USB boot disc).
If you are reading this last bit of information with skepticism, than you should know that it happened to me too. Despite all my tries to make it work properly, the SuperDrive kept on munching any inserted DVDs and just popped them out in about twenty seconds.
The workaround to this issue was to create my own Leopard bootable USB memory stick. I am not suggesting a Snow Leopard bootable stick mainly because there are lots of users that have decided to buy the cheaper, Upgrade version, which I have not tested and, therefore, I’m not sure if it will work properly once written to a USB disk.
And now, here are the exact steps you should follow in order to obtain a fully bootable Leopard (or Lion) Install disc.
Step 1 (If you already have the Leopard install disc DMG file you can skip to Step 2)
Launch Disk Utility (you can find it inside /Applications/Utilities). Here select the Leopard Install disc in the list of drives on the left and click on the New Image menu entry at the top of the window. A save message will appear where you will have to select the Desktop as a destination.
Step 2
After Disk Utility has finished creating the Leopard DMG, insert your USB stick and erase all data and reformat the disk. To do this select the USB in the list of drives on the left and, after clicking on the Erase tab on the right side of the window, choose the Mac OS Extended (Journaled) format and click the Erase button beneath.
Step 3
After the USB has been reformatted, download the SuperDuper app from HERE and launch it. Once SuperDuper starts, you will only have to select the DMG in the Copy drop-down menu, your USB memory stick on the right and hit the “Copy Now” button.
One can also use Disk Utility for this task but creating a bootable USB stick failed 2 out 4 times when copying the DMG to the stick (with the exact same settings each time). Creating the bootable stick using SuperDuper proved to be the perfect way to do it because it worked each of the 4 times I tested it.
The steps above can also be used to create a bootable Mac OS X Lion USB by using the InstallESD.dmg image you can find inside the Lion installer (named “Install Mac OS X Lion.app”) downloaded from the Mac App Store in the /Applications folder.
To locate the InstallESD.dmg right click the Lion installer, select the “Show Package Contents” entry, go inside the “Contents” folder, and from there into the “SharedSupport” folder. Inside this folder you can find the InstallESD.dmg you can use to create your own bootable Mac OS X Lion USB stick. To do so, go to the third step described above and use the InstallESD.dmg as the DMG to be copied to your USB disc.
That’s it! Once the process ends you will have a fully bootable Leopard (or Lion) USB disk that you can use as an alternative to the Apple’s DVD Install disc that comes bundled with all Macs.
To use your newly created bootable disk you will have to restart the Mac, press and hold the OPTION key until the StartupManager appears. Here, select the Mac OS X Install disk using your keyboard arrows and press return to start from the selected drive.

I'm trying to install Mavericks and got this message: You need 4.94 GB of available space to download OS X Mavericks. Remove items from your startup disk to increase available space. How do I do this?

I'm trying to install Mavericks and got this message: You need 4.94 GB of available space to download OS X Mavericks. Remove items from your startup disk to increase available space. How do I do this?

With Macs and OS X, you shouldn't let the hard drive get below 15 GBs or less of free data space.
If it does, it's time for some hard drive housecleaning.
Follow some of my tips for cleaning out, deleting and archiving data from your Mac's internal hard drive.
Have you emptied your iMac's Trash icon in the Dock?
If you use iPhoto, iPhoto has its own trash that needs to be emptied, also.
If you store images in other locations other than iPhoto, then you will have to weed through these to determine what to archive and what to delete.
If you use Apple Mail app, Apple Mail also has its own trash area that needs to be emptied, too!
Look though other Apple Mail folders like the junk mail and delete the mail that is in there. Look through your sent items folders and see there is any mail in there that can be deieted.
Delete any old or no longer needed emails and/or archive to disc, flash drives or external hard drive, older emails you want to save.
Other things you can do to gain space.
Once you have around 15 GBs regained, do a search, download and install OmniDisk Sweeper.
This app will help you locate files that you can move/archive and/or delete from your system.
STAY AWAY FROM DELETING ANY FILES FROM OS X SYSTEM FOLDER!
Look through your Documents folder and delete any type of old useless type files like "Read Me" type files.
Again, archive to disc, flash drives, ext. hard drives or delete any old documents you no longer use or immediately need.
Look in your Applications folder, if you have applications you haven't used in a long time, if the app doesn't have a dedicated uninstaller, then you can simply drag it into the OS X Trash icon. IF the application has an uninstaller app, then use it to completely delete the app from your Mac.
Download an app called OnyX for your version of OS X.
When you install and launch it, let it do its initial automatic tests, then go to the cleaning and maintenance tabs and run the maintenance tabs that let OnyX clean out all web browser cache files, web browser histories, system cache files, delete old error log files.
Typically, iTunes and iPhoto libraries are the biggest users of HD space.
move these files/data off of your internal drive to the external hard drive and deleted off of the internal hard drive.
If you have any other large folders of personal data or projects, these should be archived or moved, also, to the optical discs, flash drives or external hard drive and then either archived to disc and/or deleted off your internal hard drive.
Good Luck!

Why do you need a usb bootable drive to do a clean install of Mavericks (or any other OSX)?

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