OS X :: Delete EFI System Partition - Convert GPT Back To MBR
Apr 12, 2009
I converted a 500G External USB SATA hard drive from MBR to GPT no problem. It could be done using either Vista 32bit or WinXP 64bit the conversion under XP Pro SP3 32bit was not possible maybe because diskpart was still an older version and not updated to a newer version. My work on the Mac is done now and I want to convert my drive back to MBR so I can use it with windows. I've erased and then deleted all the partitions I had created on the drive. Using WinXP 32bit and Disk Management I see only one big partition (465.76 GB Healthy (GPT Protective Partition)) Using WinXP 64bit and Disk Management I can see there is a 200Mb EFI Systems Partition followed by 464.44 Gb of Unallocated space. How do I get rid of this EFI Systems Partition that is stopping me when using diskpart to convert to MBR?
My sister bought a second hand Mac Book Pro. According to Mac Book Pro specs. this unit should have had a 250G - 320G Hard Drive but someone had replaced with a 120G before she got her hands on it. My assumption then is that theywhoever it was that switched the drive must have also replaced the DVD drive at the same time as well........................
I'm a bit unsure as to the best way to tackle this. I have a single partition on my Leopard install with that partition map scheme being a "Master Boot Record" as apposed to a GUID Partition Table (GPT). Not sure why it is not a GPT but I appear to have formatted it incorrectly when I installed it (as a replacement drive / upgrade of the original). In any case, I now need to change this partition system back to a GPT so that it will allow me to run firmware updates as EFI upgrades are dependent on a GPT partition.
My question is more or less what is the best way to accomplish this given it's going to require a reformatting of all my data in any case. I have it all backed up to a Time Machine backup on a Time Capsule but to reformat the drive would then mean I have to re-install the Tiger install, followed by the Leopard upgrade disks, followed finally by the restore from Time Machine.
Is there an easier way to clone the data perhaps, such as with a Carbon Copy Cloner disk to disk clone? Or would that "restore" then merely include the actual partition format back to Master Boot Record as part of the clone? (I suspect the clone includes the partition type). Any advice would be greatly appreciated! Are there any other options?
Nothing happens, the comupter, macBook Pro, Snow Leopard, freezes. The only functional button is the esc key. Once it is pressed the computer functions.
I have tried repairing permissions on my hard drive, repairing disk on the external disk. Still the same.
just trying to get back into Windows 7 after installing it via Boot Camp. Only thing is that holding down the option key during restart does nothing, and although the partition in which Windows 7 is installed under shows up in finder, I am unable to view it in system preferences so that I can boot from it. Any advice?
I recently bought my mother a Macbook. It was a store display one but she had no problems with that. Anyways when we first boot it up I noticed that on the desktop there is a Time Machine disk. So I openMacintosh HD that there is only 17 gbs free out of 33 gb, so I check System Profiler to see if there is a smaller hd in there but the it says that the hd is 150 gb.
So I'm wondering how to delete the time machine partition and resize the Macintosh HD partition so I can give her the most space she can get.
I had my hard drive partitioned into 2, where one was mac the other windows xp. I received this macbook as a gift from my sister so i wanted to reformat everything into mac. I popped in the Mac OS x install cd and just installed it. Now there is two hard drives and I am not able to re-partition it where i can bring it back to one again...I was suppose to delete windows first before re-formating my macbook.
I've been running Fusion for quite a while and have a VMDK (XP) that is fully configured and running all the tools I need. My question is - is there a way to convert the VMDK over to a Boot Camp partition? I'm trying to avoid reinstalling all the tools I have on the VMDK.
I erased my bootcamp partition this morning thinking that was the same as deleting the partition - how do I actually delete the partition and combine it with my MAC OS partition now? I can't do it thru bootcamp
My G5 is in an Apple shop, and I'm running Classilla on my desktop G3. Classilla says I need FlashPlayer on some websites. I found "flashplayer8r42_mac.dmg" online. But DiskCopy v 6.4 will NOT convert that file to an img file, despite what I have read. Also, "DMG2IMG" seems not to be available for Mac OS 9.Â
Do I have to wait to get my G5 back before I can convert the file to an img file that OS 9 can open?Â
Info: PowerMac Dual 2.7 GHz G5, Mac OS X (10.4.11), Desktop G3 (1997) upgraded CPU, RAM, Hard Disks
I have had my macbook for a while and I needed windows for something so I decided to try out Bootcamp. I read that you are supposed to back everything up on Time machine so I tried that. I made a partition on my disk for everything to back up to. Unfortunately I did not leave enough space and time machine stopped. I tried to delete the disk and just create a partition for Windows, But I don't know how to delete it.
I am going to partition a 160 gig hard drive to use as 1. a dedicated os back-up, i.e. no videos or pictures or anything needless, and 2. storage for some media items. How big should the partition for the os back-up area be and still allow for some expansion as the os gets larger?
I know there have been a bunch of posts on this topic but I have a slightly different situation. I have .pst files from Outlook on XP but no longer have the PC and don't have a copy of Outlook. I need to find a way to convert the raw .pst files to an email system that will work on the Mac.
how I can convert my old IMAC from "dial up" to go on the internet as high speed? I have an ISP provider for a more modern computer that I own, but I really would like to use my old IMAC on the internet as well? How can I make it compatible with high speed internet? If I try to go on line, the internal modem "dials up". How can I change that and cause it to communicate with my external high speed modem?
Info: iMac, Mac OS 9.0.x, it is programmed for dial
After getting my hard drive corrupted by dual boot of Linux, and having to delete everything, I decided to not use it again. With the fresh install of OSX, I inspected the partitions in Terminal and deleted most of them. However, there is a 200mb EFI partition still there. Is it safe to delete it, or will deleting it mess up my system again?
I created a partition on my Macbook Pro to try Yosemite and now I want to delete it. Most site says to click the "-" button on partition, but I cannot do thisÂ
I also notice that the partitions seems to 'swap'. My main disk used to be 'Macintosh HD' but now the 'Trial' partition somehow moved to the top?I
I've installed Windows XP on my iMac using bootcamp. Now, I don't really want it anymore... So, the question is how would I delete the partition without effecting my OS X partition?
I mistakenly wiped my windows partition thinking it would delete it so i could gain 5gb back to my OSX drive.
I should have used Boot camp assistant and i cant use time machine as the last time it was syncd was in November and i would then lose some important Music projects.
I have a new SSD Hybrid momentus HD in the post, but i dont want time machine to put the windows partition onto the new drive.
What options do i have, so i dont have to reinstall all my Apps and Documents etc.
I have a new Mac book pro and am trying to migrate my dell, I have used Vmware fusion 3, and all the software available for this but there was always errors gallor. The last attemp was to use Bootcamp, got to the point where there was an error, so I attempted to delete the partition, now this is where I should not have even thought about, but I did and now I have to Reinstall the OSX, is there anybody outr there who has actually migrated there PC to their MAC without any problems.
I have an early 2006 iMac with the notorious GPU issues so after replacing it with a new Mac Mini it's time to sell the iMac for parts. I'm trying to reformat the hard drive with no success - I boot off of the original Mac OS X 10.4.4 CD, launch Disk Utility, but whenever I try to erase the disk or delete the partition the program freezes. I've even tried using GParted Live! CD to delete the partition and the same thing happens - whenever I assess it, it locks GParted as well! Funny thing is, I can still boot off of the hard drive just fine.I should mention that the hard drive has 10.5.8 installed - perhaps there's an incompatibility between Disk Utility 10.4 and the installed OS?
I partitioned my hard drive to install windows. I rebooted, loaded up the windows disc. And then realized my disc only had one partition. I quit the windows installer without installing windows, went into boot mode and I can only see my bootcamp partition. Is there any way to get my osx partition back?
I tried to Partiton my hardrive for bootcamp which was going fine. i then accidentally cancelled it in the middle of partitioning and now its saying that there is only 87GB of memory left
Info: MacBook (13-inch Mid 2010), OS X Mavericks (10.9.4)
I'm taking an opportunity that just came up to upgrade to a 15" i7 Macbook Pro and wanted to run something by the community here. I currently run Windows 7 under Parallels 5 only and would love to convert to a bootcamp so I can run Windows 7 under both Bootcamp and Parallels. I know from my research some say this is impossible.
But I just thought of something and thought maybe someone else tried this. Windows 7 has a backup/restore feature that can make a system disk image. So I was thinking of trying that. Uninstalling the Parallels tools then creating a disk image. Then making my Bootcamp partition and copying my disk image created earlier onto that partition.
