Using Disk Utility for backup - target drive must be same size as source?

Hello. I have a 250 GB data drive that I need to back up to an external drive using Disk Utility (restore) so that I can create a RAID-1 set using the 250GB drive. The files take up only 100 GB on the drive.
Does the target external drive need to be 250 GB or just 100+ GB in size for the Disk Utility to work?
Thanks
David

I you want to make a non mirrored drive into a mirrored one you can do that with diskutil. Copying it first is not needed.
man diskutil:
enableRAID mirror|concat device
Convert single filesystem disk or volume into a unpaired mir-
ror RAID set or concat set. Ownership of the affected disk is
required.
repairMirror raidDisk newDisk
Repair a failed mirror. Supply the existing RAID as the raid-
Disk parameter. Supply the new disk as the last parameter of
the request. newDisk and raidDisk are only Device Nodes or
Disk Identifiers. Ownership of the affected disk is required.
The second disk in the mirror set needs to be as big or bigger as the first disk.
Do this booted from another disk or DVD.

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When using disk utility to copy one drive to another is it common for the screen to go black

I have a G5 and the main HD is making a little noise. I installed a new HD and was using disk utilities to copy the old to the new. The message came up that it would take 5 hours to copy. The screen went black ... is this common? How do I know it's doing it's thing?

I always set the Energy Saver settings to "never" whenever I do things like volume cloning, software (especially OS) downloading and installing, or using Disk Utility for most anything.

HT1553 Does using Disk Utility also backup MSOffice 2008 (Mac) software already installed on my Macbook Pro with Snow Leopard? If not, how would I do that?

Hi,
I'm looking to upgrade from Snow Leapord (10.6.8) to the new Mountain Lion. Have a lot of applications and softwares that I would like to back up when installing the new OS, such as MS Office, Adobe Photoshop and Illustrator. Any ideas on what is the best way to do that.
I'm not too tech savvy, so a simple solution would be appreciated.
Thanks,
Shyam

If your not very tech savvy, I would have someone assist you in the upgrade process as your about to inflict major change on your life and computer.
There are some things to consider before you upgrade.
1: The age of your machine:
My advice has been if your Mac is less than two years old and has a dedicated graphics (not all only Intel HD 3000 or 4000 CPU graphics like the 13" has)) then you stand a very good chance of 10.8 (or 10.7) running fine on your machine.
In either case you need to check the specifications of your machine to see if it meets Apple's requirements, and unfortunately those requirements are a bit low, resulting in a slower machine when you upgrade.
https://en.wikipedia.org/wiki/OS_X_Mountain_Lion
https://en.wikipedia.org/wiki/Mac_OS_X_Lion
(note: 10.7 is no longer being sold via the AppStore, you should upgrade to 10.8, however some machines can't, you can call Apple Sales to upgrade to 10.7)
If your machine originally came with 10.5, I would say forget it. Mac's don't last forever and laptops usually have a life of about 4 years with normal use. Desktops last longer of course and can withstand more OS X upgrades if Apple allows it.
2: The age of your software.
10.7 and 10.8 will not run PPC based software of old like 10.6 does, also upgrading to 10.8/10.7 may require expensive software upgrades that can hit you unexpected. Consult this site and your other needed software and hardware drivers/software (for printers/scanners,custom keyboards/mice etc) BEFORE you upgrade the operating system.
http://roaringapps.com/apps:table
3: Carbon Copy Cloner or SuperDuper "clone" (payware)
Your OS X boot partition to a new/reliable, blank powered external drive and use Disk Utility to Repair Permissions on both afterwards. You can hold the option key down and boot from this clone drive to use the computer like before if your OS X upgrade fails and the machine gets bricked. You can also use Disk Utility to erase the entire internal drive and reverse clone if you find out the OS X upgrade is not to your liking.
Make sure all other drives are disconnected, like TimeMachine when cloning or upgrading OS X, thus when you reboot TimeMachine doesn't self update itself, which can lock you out from going back in time to restore from.
Note: If you have Bootcamp, you can clone that with WinClone (payware) to another drive and recreate Bootcamp later and restore it.
4: Some firmware updates can possibly "BRICK" your hardware
Firmware updates progress in a forward manner and can't be downgraded, so what sometimes occurs is a software error by programmers or a hardware glitch on your machine won't 100% cooperate with the firmware update and thus your machine will fail to function. Sometimes even a interruption in the OS X upgrade or firmware update process will cause the problem. When this occurs, a trip to a Apple Repair is in order and if your machine is out of AppleCare (3 years) or the 1 years standard warranty your looking at a very expensive logicboard replacement. At this time you usually consider the cost not worth it and rather spend the money on the newer machine, especially if it's 2-3 years old. This can come as quite a shock as you expected to pay $20 for a OS X upgrade and now have to buy a whole new machine.
You can't not upgrade the operating system for security and bug fixes, however you make sure you have AppleCare that will protect you for three years if such a hardware bricking occurs. If you don't have AppleCare you might want to reconsider taking the chance upgrading the operating system and thus the firmware.
AppleCare can be purchased within one year of the original machine purchase, it gives one 3 years of care from the date of machine purchase, not from the date of AppleCare purchase.
5: Market share of OS x versions (apx)
10.4 4.5% security updates > no
10.5 15% security updates > no
10.6 52% security updates > yes
10.7 30% security updates > yes
10.8 2 million upgraded so far, just released
6: Your decision to upgrade or not
It depends upon your computer technical ability, the age of your machine, your software investment and your budget.
Can you afford to pay for professional assistance if your upgrade doesn't go as expected? Are you in AppleCare?
Can you afford to pay for upgrades to third party software?
Can you afford the downtime while your machine is being repaired?
Can you live without the "new features" newer OS versions provide?
Does your hardware even support the newer features?
You might decide the upgrade is not worth it for your older machine and decide to ease yourself into a new machine gradually. I took this approach with my 2006 MacBook Pro, buying a Early 2011 model. I then upgrade to 10.7 on the older 2006 machine and glad I did, because it got bricked. Turned out 10.7 was a pretty awful upgrade and I was out of AppleCare, however 10.8 seems to be "normal" far as OS X upgrades go, some problems but not mass bricking of machines.

Using Disk Utility to backup SD cards

Does anyone have any idea how to allow non-admin users to backup entire SD cards using Disk Utility on Mavericks? It now asks for an admin login and I cannot go round logging in every time one of the 300+ students here wants to back up their card after shooting some footage. There is a thread on the Mountain Lion board about this but the solution there was to edit etc/authorization but that no longer works in Mavericks as it is now all on an SQL database.
I have found the similar item within the SQL (security authorizationdb read sys.openfile.) but cannot change it (it returns NO (-60005) when I try to write to that section)
Cheers
Neil

Hi Tom,
Of course, that makes perfect sense! When I made my last disk image backup, my PowerBook had a serious, undiagnosed problem and I had booted from the startup disk to have a current backup of everything before I sent it off for repair.
Thanks for your help.
Rick

Using Disk Utility to erase Hard Drive

Hi All
I just bought a new external hard drive and am using Disk Utility to erase and format it. I did not know for sure if erasing the hard drive was the right thing to do. Anyway I set up the Volume as follows from the mac help instructions:
1.format OS extended journaled
2.Install OS9 disk driver.
3.("Zero all data" and "8 Way Random Write Format"). So it has been running for about 3 hours now and is only 1/8 of the way writing 0's to disk.
My question is should I continue on and just let it finish up? At the rate it is going It might be done by sometime tomorrow.
Or can I stop the erasing process without hurting the hard drive.
Then start disk utility erasing the hard drive without this Zero all data.
Thanks much

Just to confirm your impression, S. Frigolett: yes, everything should be fine now.
Zeroing a drive is advisable if you have reason to believe there may be bad data storage blocks on it; zeroing identifies those blocks and prevents them from being used (because using them would result in lost or corrupt data). A simple erase doesn't do that, but on a new drive straight from the factory there is no reason to think it's necessary.
The 8 way random write option is for people who have extremely sensitive data to erase from a drive that may pass into other hands, and who want to be sure that no one short of the NSA will have any chance of recovering any of that data. A new, empty drive has nothing on it that even the NSA could recover, so there's no reason to erase it that thoroughly.

Using Disk Utility to format jump drives to work on a PC?

I have tried several times to format usb jump drives using Disk Utility and then I copy files to it and try to open it on a Windows computer and it prompts me that it needs to be formatted on the Windows computer. How do I format it on a Mac to work on a PC? I have tried this with different usb drives using the MS DOS format option.
Thanks.

Dude,
Of course this isn't a jumpdrive but for externals...
There's a bug in Apple's disk utility software when using USB. I just had this happen to me too. The work around is to use Firewire when formatting. Fortunately, I have a multi port interface so changing to Firewire wasn't an issue.

Using Disk Utility for Boot Camp to work

I'm trying to install Windows 7, but Boot Camp gave me the old error message about having unmovable data and needed to use Disk Utility to format it as a Single Mac OS Extended (Journaled) Volume. So I backed everything up and am ready to go, but when I open Disk Utility and select my hard drive/disk, all the options under "erase" are grayed out. Any ideas?
Thanks!

You can't format what you are using.
If you cloned your drive you would be able to boot from that; if you used another method and you don't have OS X installed on another hard drive, you have to use your DVD.

No Erase option in Disk Utility for an SSD Drive!

Hi guys,
Made a time machine copy on a 500gb external hard drive of my 13" MBP with a HDD currently in it.
Then took my 500gb SSD from an old 15" MBP, removed the HDD and put it in my 13" MBP.
Opened up 13" MBP in restore mode. Chose restore from time machine back up.
Choose the time machine external drive as source. Then chose the SSD drive to restore to.
Said it was erasing the drive... Asked for a password...
I typed in my usual password. It then said the SSD drive couldn't be erased.
Took the SSD out and put the original HDD back in.
Plugged the SSD into a firewire 800 caddy to try erase it in disk utility as an external.
This drive will show up in disk utility but the erase option isn't available.
I can repair the disk but it says the disk is perfectly fine.
I can click on the partition option but everything is greyed out and I can't partition it at all.
This drive will now no longer show up on the desktop or finder.
This is driving me crazy!
Just want to erase the SSD, use time machine to restore onto it and get busy.
Please help!
Thanks,
Chris

Aha! I only looked at 'format' list, didn't notice the 'option' list.
problem solved.
thank you !

Warning signs when using disk utility for my power mac g5

I have a dual 2GHz PowerPC G5. I just upgraded to the latest Leopard & installed FCP2. I noticed when I use Repair Disk Permissions, there are so many warning signs & I'm not sure what to make of it. I do notice that my computer freezes a lot, can someone help interpret these warning signs for me? And, how do I fix it? Here are some samples of those warning signs during repair disk permissions:
Warning: SUID file "sbin/mount-nfs' has been modified and will not be repaired.
Warning: SUID file "sbin/unmount" has been modified and will not be repaired.
Warning: SUID file "sbin/ping' has been modified and will not be repaired
Warning: SUID file "sbin/ping6" has been modified and will not be repaired
Warning: SUID file "sbin/route" has been modified and will not be repaired
The list goes on and on, please help.
many thanks in advance.

The catalog is the index for all the files on disk. It is useless without the related disk files so cloning just the catalog isn't really an option. You would need to clone the entire drive (SuperDuper!, Carbon Copy Cloner and even Disk Utility will do this).
Disk Warrior is a utility to clean up the catalog, make it into an order that should speed up file operations. It has potential to loose files because of the nature of it's job, but it is pretty reliable in my opinion. The catalog is like a telephone directory for files
The repairing of permissions involves the system keeping receipts of all the things that are installed & updated (with the appropriate permission values) and then the repair permissions utility resets the files to what the receipts say. The recieots are kept in the /Library/Receipts folder. You haven't deleted anything from there have you? if you have you would need to replace them with copies from a similar system, not an easy task.
I believe the items contained in /sbin/ are system binaries that come from the BSD package when installing Mac OSX. I would consider doing software updates then try repairing the permissions again.

Using Disk Utility to format external drive as Apple extended?

Hello - I just bought a 750G Lacie USB hard drive, am attempting to reformat it from FAT32 to Mac Extended. However, when I attempt to 'erase' the drive and replace it with Mac Extended, I get the following error message:
+2009-04-28 22:12:24 +0100: Preparing to erase : “ReadyNAS”+
+2009-04-28 22:12:24 +0100: Partition Scheme: Master Boot Record+
+2009-04-28 22:12:24 +0100: 1 volume will be created+
+2009-04-28 22:12:24 +0100: Name : “ReadyNAS”+
+2009-04-28 22:12:24 +0100: Size : 698.6 GB+
+2009-04-28 22:12:24 +0100: Filesystem : Mac OS Extended (Journaled)+
+2009-04-28 22:12:24 +0100: Creating partition map.+
+2009-04-28 22:12:26 +0100: Formatting disk1s1 as Mac OS Extended (Journaled) with name ReadyNAS.+
+2009-04-28 22:12:27 +0100: Disk Erase failed with the error:+
+File system formatter failed.+
+2009-04-28 22:12:28 +0100: Erase complete.+
+2009-04-28 22:12:28 0100:
+2009-04-28 22:12:28 +0100: Disk Utility failed during an unspecified action with the error:+
I can reformat it as FAT32, no problem.
Any clues? Thanks!

Use the "partition" tab in Disk Utility, set it to "1 Partition" click the "Options" button, and choose "GUID".

I tried to burn windows 7 Iso using disk utility for more than 3 time with the minimum speed, but all the three times I got error saying "disk burn failed unable to verify"?

I have tried with three different blank DVDs but all got the same error message. But after I got the error message when I reinsert the DVD I can see the ISO in the DVD. So I went a head with the installation but the installation stops just after it starts. I have even tried burning the disk at 2X speed.

It sounds like your optical drive may be dirty. The lens probably needs a cleaning. You can go to somewhere like Best Buy and pick up a cleaning kit.

Using Disk Utility for RAID setup?

I just purchased 2 1TB Seagate Hard Drives 32mb cache 7200prm that I want to setup a RAID 0 (striping I believe) for Final Cut Pro for rendering. Well I also have a 3rd drive that is identical, question is does more drives in that RAID setup mean faster performance? 2 drives vs 3 or 4, etc.? Also what do you think that actual difference in reading and writing would be approximately?

You can find the max sustained, the average I/O, and minimum. From reviews and Seagate product spec details. There is some overhead for each drive as you seek and assemble the parts of a file.
The burst rate of the drive is likely around 135MB and average of the outer half a solid 100MB/sec.
The bandwidth in the Mac Pro totals 1GB for all drives, even though each is supposed to have 3Gbps.
SSDs are fast catching on for speed and fast system drives, even in stripe raid.
Don't mix 7200.12 with .11s or even different model/series/firmware. And Seagate has had its hands full with firmware issues for years, going back to the intro of SATA actually.
If you want one large volume and if having 200MB/sec matters or helps, you might want to RAID, even partition each drive first to 3/4 level and stripe that 3/4 together to guarantee 200MB/sec range.
But experiment for a couple weeks first.

Reformat external hard drive for Windows machine using disk utility

I have a Maxtor 160GB dual-interface external HD. I used it for my Mac OS X. I erased and reformated the hard drive on my Mac to MS-DOS using Disk Utility for use on my fathers Windows XP. I hooked the hard drive up to the Windows machine and the hard drive was visible in both Windows Explorer and on the task bar. I right clicked on the hard drive and selected Format. The formatting takes a while but at the end an error appears indicating the hard drive was not formattable. How can I get a MS-DOS formatted hard drive (from a Mac) to be used on a Windows XP machine with a NTFS format?

Turns out it is possible:
Maxtor Support..
I would use your Disk Management utility within Windows to repartition and reformat the drive. To access Disk Management, right click on My Computer, go to Manage, and then choose Disk Management. Within Disk Management the drive should show in your list of disks (Disk 0,1,2 etc etc). I would delete any partitions that are on the drive. To delete a partition, just right-click on the partition and choose delete. Make sure you’re deleting the correct drive. Once the entire drive says unallocated then the drive should be ready to partition and format. Just right click within the Unallocated Space on the drive and choose the New Partition or New Volume option to set up the drive.
I followed the instructions and everything worked.

Cloning drive to external & partitioning using Disk Utility.....!

Hi,
I wonder if someone is able to answer my questions and offer some advice and help.....?
I am purchasing a new external drive and would like to know how to clone the internal drive of my Power Mac G4 using disk Utility to the external drive, so that it is also bootable. I have seen that there seems to be more then one way of doing this within disk utility, but would like to know which is the best way?
1. Please could you take me thorough the steps as I have never done this before?
2. Would it be wise to partition the external drive to keep the cloned bootable system seperate from the rest of the content that will be placed on the external drive or not? If so again please could you take me through the steps on how to do this (partition external drive)?
3. Prior to partitioning the drive is it necessary to delete the new external drive even though there is nothing on it? As I read someone that this need to be done, but didn't quite get that!
Any help you can offer would be greatly appreciated.
Thanks in advance

Hello,
Hopefully it'll be an External Firewire drive, as USB cannit be booted from on PPC Macs.
I wouldn't use Disk Utility, there are easier ones for free.
I strongly recommend that you get a good Firewire drive to Clone your Internal drive to...
http://eshop.macsales.com/search/firewire+drives
Many of those come with Backup SW, or...
Get carbon copy cloner to make an exact copy of your old HD to the New one...
http://www.bombich.com/software/ccc.html
Or SuperDuper...
http://www.shirt-pocket.com/SuperDuper/
2. It depends how big the new drive is & how much space is used on the current drive.
OSX loves lots of free space on it's boot drive for VM & other temp files, I don't feel 50% is too much free space to leave.
3. Normally isn't needed to Zero the Drive, but you may have to foprmat it...
How to format your disks...
http://www.kenstone.net/fcp_homepage/partitioning_tiger.html
Thanks to Pondini, Formatting, Partitioning, Verifying, and Repairing Disks...
http://web.me.com/pondini/AppleTips/DU.html

Using disk utility with Time Capsule backup disk

When backing up, i get an error msg that tells me to run disk utility on my backup drive. It says it's having problems coping files. In Disk Utiltiy, I don't see a way to choose the time capsule backup drive but only the hard drive on my laptop. Help pls.

The error message is fundamentally stupid. You cannot use disk utility on a network drive.
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Using Disk Utility for backup - target drive must be same size as source?

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