OS X V10.7 Lion :: Cannot Turn Off Encryption And Reformat Disk
Jun 19, 2012
OS-X Lion I now have two useless FW800 external disk drives because I cannot turn off encryption and reformat the disk. (30 years ago, in DOS, this was called a "low level format".)I think I need to use Terminal commands diskutil eraseDisk or diskutil partitionDisk but nether of those commands work. Apparently, I cannot format the command correctly or diskutil cannot remove an encrypted partition.
Info:
Mac OS X (10.7.4)
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Jun 5, 2014
I am doing some research for FileVault 2 on Mac and noted that there are full disk encryption function.
I would like to know where is the encryption key location for full disk encryption in FileVault?
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May 11, 2012
How do I reformat a USB external drive with two partitions one of which is corrupted.
Disk Utility will not work because the faulty partition prevents unmounting of the disk.
Info:
MacBook Air, Mac OS X (10.7.4), Macbook Air bought August 2011
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Jun 5, 2014
I have a question which I am quite unsure. I am shopping for a HDD drive (Western Digital My Book 3 TB) and was told that it cannot be reformatted to be compatible with TIme Machine.
I would like to verify if it is true.
Info:
iMac, OS X Mavericks (10.9.3)
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Feb 26, 2010
My company is rolling out this for their macs and I'm curious to know what you guys thinks about it. My home mac has a partition for linux and for OSX, plus I'm generally concerned about interacting with the system when the disk is encrypted. Since its my home mac I really want to avoid needing to load this on. They're setting up policy that you must use whole disk encryption if you wish to log in via vpn - at least for windows and macs. Since I also use Linux I think I have a loop hole I'm still curious to hear people's opinion on PGP whole disk encryption.
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Sep 8, 2006
So i put the OSX disk in (10.3) and when i make it boot from the disk the mac logo pops up then it shifts a quarter inch to the right and freezes. I then tried booting it normally and pressed the install button now it boots off the CD automatically with the same result and can't be turned off. Is there an emergency disk remove thing for a powerbook G4? And is there a way to reformat my computer without the disk?
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Jan 6, 2011
What is best disk encryption software for Mac? Are there any websites which reviews and lists best softwares like this? I'm interested how unbreakable code is and how safe it is, meaning that bugs etc don't cause any data loss.
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Apr 21, 2006
This is mainly just one of those 'I always wondered' things. How secure really is the 128-bit encryption offered in Disk Utility? Is it virtually impossible to crack? Somewhat difficult? How long would it take someone who really knew what they were doing? If anybody wants to try, I made a sample encrypted disk image. See if you can get into it. Its 2MB and you can download it here. After downloading, you'll have to take the .txt off the end of the filename so its just challenge.sparseimage.
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Dec 6, 2014
Why cant I resume the encryption. I connect the power and nothing happens. I retart with power added and I get a "Calculating time remaining" then right back to the title message. I just bought this Macbook Air and already this issue has happened and its drawing quite a bit of battery power. Also Apps using significant energy shows "Reverting from Filevault"...this does not look good on Mac
Info:
MacBook Air (13-inch, Early 2014), OS X Yosemite (10.10.1)
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Mar 21, 2010
I have my internal hard drive (running 10.5) encrypted with PGP Whole Disk on my internal hard disk. I want to buy a new Mac and I have a full backup. Can I remove my internal drive, put it in an enclosure, connect it to another Mac with PGP installed, and mount it as a standard PGP encrypted whole disk?
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Nov 27, 2008
I have been trying to backup a few .avi files I have onto DVDs and after reading over the forums I have aquired ffmpegx and Toast 8. I place the avi file into ffmpex, encode it with the dvdffmpeg format. But once i burn it with toast, it takes the original wide screen avi file and stretches it to full screen.
I tried re-encoding with the DVD 16:9 setting selected with ffmpeg and it seems to look better in a preview, but when I try and burn the Video_TS folder in Toast it gives me the CSS Encryption disk error, which I do not understand because I'm not copying a copyrighted dvd.
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May 20, 2010
I want to reformat my 2.33gh MBP. The problem i have is i dont have the original install discs that came with the computer. I am currently running snow leopard, which i installed with an upgrade disk. I borrowed a snow leopard disk from a friend who got a new imac recently and when i try boot from the disk to reformat it just says i cant install the software on my computer
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Apr 23, 2010
I have a 13" white macbook with leopard on it that I got about 2 years ago. Anyway, the other day I was cleaning stuff I didn't need anymore off it and I somehow accidentally moved the "library" folder that's in the "system" folder in to the trash. I tried removing it but it wouldn't let me, then my mac froze and I restarted and it just showed the Apple logo while flashing an anti-logo and a folder with a question mark on it. I took it to the Genius bar and the guy asked me if I had my files backed up and I said no, but he told me a way I could back them up on my girlfriend's mac using a fire cable and then just reformat it myself. So I bought the cable and put the files on my girflriend's mac. However, now when I'm trying to reformat it from the installer disk, it doesn't seem to be working. It shows the Apple logo and the loading gear underneath and then it switches to that anti-logo (circle with slash through it) and the loading gear continues. I let it run like this all night but still no change. I tried resetting the PRAM and other things. I've held C and held D to run a hardware test and it says there are no problems. I've held Alt/Opt and it recognizes the disk but it doesn't seem to load anything from it.
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Feb 19, 2009
I recently bought an external hard drive enclosue and have an old hard drive from my Dell. Can I use Disk Uitlity to reformat this drive so I can use it as storage for my macbook. If not I have Windows booted on there at I will use that to reformat it.
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Jun 5, 2012
How do I reformat a disk to use for Time Machine?
The disk is from Seagate, a GoFlex Home unit that was used originally by someone else with a PC.
Info:
Mac mini, Mac OS X (10.5.8)
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Jun 20, 2014
I have a Macbook pro 17" (2011) running Mavericks with a Crucial 960Gb SSD and a 750Gb WDC in the optical bay. My ssd is divided into 710 Gb to OS X and 182 Gb to Windows 7 Bootcamp. All was well until the other day when the OS X partition failed to boot. I got the grey screen and the very slow progress bar which after 15 minutes powered the machine off. The Bootcamp partion continues to work without issues. I booted from an install disk and ran disk utility. The OS X partition appears greyed out on the left panel. I attempt a repair disk and after a 15 minute delay it says it is unable to repair the last action being "updating boot support partitions for the volume as required". Its all backed up regularly on time machine but when I boot an install usb and attempt to restore from time machine, the OSX disk does not appear as an option. I go back into disk utility and attemp to erase/repartition the disk to start a new install but it refuses to unmount. I appear to be running out of options,
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May 30, 2012
Upgraded to 10.7.4 today, and now,when trying to authenticate to existing WEP networks, OSX is mistakenly recognizing them as WEP Enterprise encryption. These networks still work fine on my Droid using normal WEP, so I can confirm that the network was not reconfigured.
Info:
terminal, Mac OS X (10.7.3)
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Aug 22, 2014
Is it possible to reformat a single partition of a disk w/o reformatting the entire disk?Or must one reformat the entire disk? In DU, If I click on the volume/partition in question, I do NOT get the tab “Partition.” If I click on the disk, not just the volume/partition in question , then I do get the tab “Partition.” Also, does using DU to secure erase a volume by overwriting with 0s, cause a format issue? Some details on my other post:Create a bootable clone using Disk Utility
Info:
iMac, OS X Mavericks (10.9.4), 4 GB RAM, Win XP Pro-Boot Camp
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Mar 24, 2012
I'm looking to encrypt data on my hard drive. I keep hearing about truecrypt. How robust is FileVault and where can i find out how to use it?
Info:
MacBook
Pro, Mac OS X (10.7), 2.2 Ghz Intel Core i7
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Apr 6, 2012
How to I reinstall Mac OS Lion 10.7 if my MacBook is encrypted but I do know th passcode?? I have the Late 2011 and if has Lion preinstalled if you need to do a complete system reset???
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
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Jun 11, 2012
How long does filevault encryption take to complete?
Info:
MacBook, iOS 5.1.1
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Jun 30, 2014
When I try to use the disc encryption feature in Finder for a flash drive (from the sidebar), it asks for a password which I have done.
However, this encryption method for a flash drive is not working after I put in the password - a window informing me that a 'GUID Partition Table (GPT) partitioning scheme is required' appears. I don't know what this means.
I'm trying this on a MacBook Pro (OS 10.8.2) with a SanDisk flash drive (32 GB, MacOS Extended format).
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Mar 12, 2012
I upgraded to Lion by download and I need to reformat my hard drive. How can I reinstall Lion without a disk? I have a Time Machine backup of my hard drive on an external drive.
Info:
PowerBook G4, Mac OS X (10.4.1)
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Mar 31, 2012
How to reformat the system
Info:
MacBook Pro, Mac OS X (10.7.3)
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Feb 17, 2012
I need to reformat a drive and reinstall the OS. I and using Avid Media Composer and it is not qualified on 10.7.3. How can I install 10.7.2 of a new drive?
Info:
Mac Pro (Mid 2010), Mac OS X (10.7.2)
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Apr 7, 2012
How do I reformat my HD and reinstall Mac OSX Lion? I somehow corrupted username.sparsebundle in FileVault and therefore can't log in. I need to reformat the HD and reinstall the latest OS. (I do not want to use FileVault going forward.)
Info:
MacBook Pro (15-inch Early 2011), Mac OS X (10.7.3)
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May 28, 2012
i have an iMac on 10.5.? something.. and i want to get it back to factory setting and upgrade it to lion, as im half way to selling it to a friend. It needs reformatting asap really as he already managed to get that flash trojan on in within his first 2 days of having it, and its already had some mileage that could do with being reset anyway. i also what what i wanted to know how to upgrade to lion without having to get snow leopard as well. i know i need to install some more ram which im in the process of getting from Crucial.com. i just need to know about how to bypass snow leopard.
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Jun 10, 2012
How do I reformat my hard disk to get rid of a virus and reinstall lion on my macbook pro ..??
Info:
MacBook Pro, Mac OS X (10.7.4), I bought a usb stick with the OS X
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Mar 27, 2012
My MacBook Pro 15" (2010 i think) ran out of battery, switched off really abruptly. Now when I go to charge it, the light at the front flashes on but then turns straight off before repeating. It tries to boot, I can hear the disk begin to whirr but then it turns off abruptly and it keeps trying. I don't understand why it won't boot and why it cuts out during the boot-up! It literally stops booting after 1 second. I think it might be my harddisk being full? It only has 900mb free?
Info:
MacBook
Pro, Mac OS X (10.6.8)
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Feb 8, 2009
I'm no newbie but this one has me stumped. I can put file onto a Time machine backup disk that I don't use as a backup anymore but I can't take them off. The Disk still has some backups on it that I would like to keep. But I would like to use the extra space for regular file storage. What gives. When putting a file on the disk it asks for the password but moving them to the trash it will delete everything in the folder but it won't actually delete the root folder. So my question is
1. Can I use the disk and keep the backups on it?
2. How do I get permission to read and write to the disk
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