OS X :: Master Boot Record Not Found / Put It Back?
Jan 30, 2010
Ok here's the situation. I'm trying to fix my brothers laptop at the moment and reinstall Leopard. He installed ubuntu and it seems to have deleted the Master Boot record. I've managed to get Leopard to install but the mouse clicker doesn't work. I've managed to narrow down the problem to the MBR, the master boot record.
In terminal I've typed in sudo fdisk -u /dev/rdisk0
This has come up with the error "master boot record not found". I'm now trying to find a way to put the Master boot record back.
Does anyone have any suggestions on how to do this?
Ok here's the situation. I'm trying to fix my brothers laptop at the moment and reinstall Leopard. He installed ubuntu and it seems to have deleted the Master Boot record. I've managed to get Leopard to install but the mouse clicker doesn't work. I've managed to narrow down the problem to the MBR, the master boot record.
In terminal I've typed in sudo fdisk -u /dev/rdisk0 This has come up with the error "master boot record not found". I'm now trying to find a way to put the Master boot record back.
I am looking for a used Mac for my folks, and someone has posted an imac that they have converted to a PC, having change the master boot record. They say I have to take it to the apple store to get it changed back, but couldn't I just start it up in target disk mode, and reformat the internal drive use carbon copy cloner or something like that?
I want to delete a partition and create a new one, but I need to be able to click option in able to do this. For whatever reason, disk utility will not let me edit my external in any way without deleting the whole thing which I do not want to do.
I am having problems. I want to delete a partition and create a new one, but I need to be able to click option in able to do this. For whatever reason, disk utility will not let me edit my external in any way without deleting the whole thing which I do not want to do.
I am looking for a used Mac for my folks, and someone has posted an imac that they have converted to a PC, having change the master boot record. They say I have to take it to the apple store to get it changed back, but couldn't I just start it up in target disk mode, and reformat the internal drive use carbon copy cloner or something like that?
I've downloaded Lion and the first "complaint" the installation software has is that neither my Mac hard drive nor Time Machine drive uses the GUID partition scheme. The software instructs me to use Disk Utility to select the appropriate format but Disk Utility states that I can't re-size the partition because it uses the Master Boot Record scheme. Further, it tells me that the drive can't be erased because it's the start-up disk.
I have Snow Leopard 10.6.8 installed on my MacBook (Core 2 Duo, 4 GB). The Mac HD has 220GB available.I waited for Lion to be reasonably fault-free and carefully looked at Lion's requirements only to find out too late about this GUID scheme business. I haven't seen anything about this requirement until I tried to install. I have great fear of re-formatting the drive as that always seems to be the beginning of many problems that take months to resolve. Maybe the choices are to forget Lion or get a new drive and format it to GUID before restoring from my Time Machine
I have a 1.8 duel G5, 3 gig of ram, and 2 internal hard drives, a 120 gig and an 80 gig. My question: does anyone know if it makes a difference (performance wise) which drive I boot from? The 80 was the original boot drive, but due to space problems, now I boot from the 120. I've run every diagnistic imaginable, including Diskwarrior. I have the identical machine at work, and that one just seems snappier. I maintain both machines the same, cocktail, MacJanitor etc. There is plenty of room on both drives. So the last thing I can think of is the master/slave thing.
My G5 2.5 has sprung a leak and is now kaput (no parts, no one can service). What I's like to do is pull the drive with some legacy stuff I need (Quickbooks and years of business stuff) and boot a new mac mini or imac from this drive. I've given up waiting for a new desktop and they are priced out of this word.
I had a presentation today, and plugged my MacBook Pro ('06 version, and 10.4.10) laptop into a projector. Right as I did that, things went a little crazy, the audio was coming out with hissing, it was running very slow, and overall just went from running great to disfunctional. It finally froze, and I shut it off. A couple of hours later, I'm failing to get past the blue screen during the start-up. When i run in safe mode, its just shuts off while i'm holding the shift key
OS X 10.7 is clearly the most advanced operating system ever (until the next one) but I'm not digging it at all. I wanna go back to 10.6. I still have my 10.6 disk. Upgraded from 10.6 to 10.7., and am now on 10.7.3. Tried running the 10.6 install disk at boot-up and the 10.6 install was all going fine but then nearly at the end Installer said "Installation Failed. Some support files couldn't be found."
Info: iMac, Mac OS X (10.7.3), 2.4Ghz, Core Duo, 667mhz 4GB SDRAM
I killed my old iPhone, and I had about 7 ringtones on it. They are nowhere to be found on my iTunes account. The only place that I can find them is in my purchase history.
The backup disk image 'Volumes/Data/John's iMac.sparsebundle' could not be accessed(error-1).
Have tried remounting Time capsule in preferences. Have run Disc utility to verify 'Time Machine Backups'. Sparsebundle is greyed out in Disc Utility.
Time capsule has 1.37Gb free space and is connected via wireless and has a wireless express as a client. Would deleting the last back up be of assistance assuming corruption?
i'm attempting to load win7 onto my MAC. Thus far i have downloaded the .iso image off MSDN (throught my university, for all intents and purposes should be as legitimate as an off the shelf copy)Â and burned it to DVD as a bootable disc image. however for some reason when using Boot Camp im told "The installer disc could not be found".There is data on the disc however when i go into the disc via finder it appears empty (no icons)... even though it is not (get info > xyzMB used).
I'm trying to install windows xp professional sp3 from an iso I torrented. I burned it to a disc, but my computer can't find the disc during the start of installation ("No bootable device, press any key").
i'm a HUGE gamer, so the first thing I did once I loaded this new computer up was install my copy of Windows Vista on it using Boot Camp Assistant. The installation went completely smoothly, so I then proceeded to install the Boot Camp Drivers onto my new and fresh and clean Windows Installation.
I restarted the computer and everything seemed to be in working order...but there are two relatively MAJOR problems:
One, the one that is the most pressing, is the sound. When I started up after installing all of the boot camp drivers, I couldn't get a single audio device to get recognized by my Vista Home Premium installation. I tried disabling and re-disabling other drivers in the Device Manager, and when I try to download new drivers for the one audio device that has an error sign next to it, Vista claims that it is already updated to the latest drivers, so it will not install new ones. I even went onto cirrus' website to download their official drivers, and the same thing happened.
Not only will holding Option while booting not work, but all of the other boot tricks (safe mode, single user mode, etc), will not work. I am at a loss. I also don't have an optical drive in this particular MBP. I have an SSD where it once was.
Ok so my macbook just froze up on me, and I shut it off manually. However, when I tried to start it back up it would not boot up. I am just receiving a message telling me " You need to restart your computer. Hold down the Power button for several seconds or press the Restart button. "I did what the message told me to do, and when I started the computer back up I just received the same exact message. I tried to take the battery out and hold down the power button to discharge any electricity in the laptop, and then I plugged in the power cable with the battery still out, and I am still receiving the same error message.I have tried the same process a couple of times and put the battery back in and then I decided to try inserting the Installation DVD, and it did nothing different then what I have been getting.
Current Problem: When I try and partition it with boot camp assistant, it just freezes my laptop. I have a mac book and the OS X. Boot camp should be with the OS X, but it isn't there. I figure I must have deleted it at 1 point but how do I get it back? I have already tried entering in disc 1, but it wasn't there under applications. Do i have to reinstall OS X all together? Last time i tried that it said the disc was unreadable. I'm a computer idiot so give me all the necessary info and any links if they are needed.
I inherited a PowerBook G4, 10.3.9, from the previous person in this job. I set up my own user account and log-in. Then foolishly I decided to rename the little house icon folder from the previous owner's name to mine. Now when I use my log-in a clean desktop comes up. In the user's folder is the house icon folder with the previous owner's name, and a folder with my name. All my documents are in that folder, so I haven't lost anything. But how do I get computer to boot back into my account?
I want to install Windows XP and will prob give it 25GB space. I don't have anything to back it up with, so what do I do? Can I proceed w/o backing up?
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'm having a worrisome problem with my MDD dual 1ghz g4. It will sometimes turn off when in sleep mode. When I try to boot it back up, it comes on and chimes and I can hear the HDD spin up, but then it will just turn off. Usually after about 3 or 4 attempts it will boot up just fine.I thought it might be the battery on the logic board, since the clock would re-set every time the machine was powered down, so I replaced it. That fixed the clock issue, but the machine is still turning off and taking several attempts to start back up.
I have no idea what is causing this. One thing I do know is that this house is pretty old and the wiring seems iffy. I have a battery backup on another machine and sometimes it will start beeping like it's lost power, but it's still plugged in and the light indicating that it's receiving power is on, so I think sometimes the power from the wall fluctuates. This might explain the MDD spontaneously shutting off, but does it explain the difficulty restarting?BTW, I searched the forums to see if anyone had asked this question, but found no threads,
I installed Windows on Boot Camp, but the Application Install DVD is blank. To replace the DVD I have to drive 2-3 hours to an apple store or apple will send me one for $17. Is there a way I can get back to the Mac and delete the Boot Camp partition? The tool in control panel is not there because I could not use the Application istall DVD.
i have no idea where to download it and i tried the install disc that came with my macbook pro but it didnt install it! someone tell me where i can get bootcamp !
I have a boot camp Windows 7 installation that I also use with Parallels. When I have Windows running in Parallels, I can use my 3-finger gestures in Firefox to go forward and back, which is a feature I'm in love with. The problem is that when I boot directly into Windows I lose that feature, and it's really bugging me. Is there a program or even a firefox add-on that would fix this?
My iMac suddenly won't boot up. It stays black and simply beeps. Holding the start button shuts it down. It's about 3 1/2 yrs old, but has been well-maintained.
So I've got a powerbook G4, thats 8 days past its warranty. Conveniently, it now won't turn on. It won't wont boot from CD. If I turn it on, I get a gray screen that usually just turns my computer back off, if thats not the case I get a screen that shows the finder icon and a question mark and then turns off.
All it will do is boot into open firmware mode. Currently the install disc is inside of it and I've tried booting the cd using "cd:, bxi" and "dir hd", and it can't open both. Does anyone know how to wipe the HD, and start the installer using firmware? Otherwise, I think I'll have to take out the harddrive and plug it into an external case and then wipe it.
I recently got rid of a partition I had made for bootcamp since I never use it, and would rather have the space back. I deleted the partition through disc utility, and then through the partition tab, tried to get back that space by dragging down the tab to restore the space originally set for the partition. When I go to apply this change, it notifies that my hard drive will be re-sized. I accept and then a few minutes later it comes back with the error "Partition failed with the error: Filesystem verify or repair failed" Does anybody know how I can restore this space successfully back into my main hard drive? I've attached some screenshots
I just was given a G4 that is not recognizing the Hard Drive. I was able to connect a drive through fire wire to load Tiger OS, but I still can't seem to figure out why I can't see the internal hard drive on the desktop or why it didn't pop up when asked where to install the OS. There is a hard drive there and it is connected, but how do I know which is the correct connection?
By reading some other threads, I saw that someone asked if the Jumper was set to Master or Slave? If this is indeed something that this could be, how can I determine that?
