Mac Merge partition failed to find partition map/u disk starter/Reload system

Mac a few days ago the hands of a double system, and then the problem is to be out of control. Later, considering how the Big Apple system could be fitted with such a low B system, it was decisive to replace it with an iOS pure system. Then the nightmare came, I will be the whole process of my reorganization of the problems encountered and want to pay attention to the points made a summary, I hope you can learn from the "PS: the whole process of real nausea, can only say that if I have money, decisive Apple fell to feed the dog, haha haha":

The cause of the matter: Bootcamp can not enter the window to clear windows, decisive listening to a big God on the Internet erase Windows disk (Erase process "diskette utility-erase"), is this erase process ah, give me the whole directly into the process of killing God. Then think of the system merge partition, there will be a failure to find the partition map such errors (Online said failed to modify the partition map, the personal feel is a meaning), to provide a method of online appearance to do rectification.

Fix the error procedure

About failed to find partition map errors on merge partition (the interface that appears does not necessarily exactly match your interface, you just have to remember the step name and the error code as well):

1, when encountering the above situation, this is because the Mac OS system internal file system in the authentication error, resulting in the inability to merge the spare partition into the Mac OS partition. Please restart the MAC system and press the Command+s key on the keyboard to enter Safe mode when restarting. If not successful, please try a few more times, (here I need to emphasize a few times, when your Mac has a personal password, before you hear the sound will be pressed com+s, when loaded into the small apple of the interface will flash a few strings of code, then enter the password can enter the security mode, This is the password I found after at least 20 reboots) press before restarting to hear the sound.

2, then you will see on the screen a string of notes in the beating, when not moving, press the "Enter" button on the keyboard, the command prompt appears, (at this point does not appear do not matter, just remember to enter the Super Admin mode is root, if not please enter the command sudo-i),

3, then please enter the Fsck-f command, and press the "enter" key on the keyboard to execute the command (strictly according to the space, this command can use/sbin/fsck–f or fsck–fy, the meaning of the command to check, learn more, haha haha).

4, then please wait to repair the file system, the speed of repair will be based on the speed of the hard disk,

5, when the repair is completed and see the screen prompt "The volume Macintosh HD was reaired successfully", the description has been successful, (if the last prompt the volume Macintosh HD appears to be O K, oh, brothers you give up, so in the future of the merger is absolutely not successful, do not toss their own computer over and over again, this is I repeat the above several commands, at least 20 times, hey, finally I gave up decisively, directly see my second method of it)

6. Next, enter the reboot command to restart the computer from Safe mode.

7, restart, and then open the Disk tool, the partition can be merged (the image is not important, note the content).

Merge partitions are not successful, re-install the system

Re-install the system process

1. Before we begin, we need to download and install a tool software for making MAC install USB flash drive on a Windows pc. (This is not important, the important problem is that we need to have a USB drive boot disk tool, you can choose UltraISO, this is very useful, I still want to introduce to you, because there is a brother on the Internet once mentioned this method)

2. Then need to download a DMG file (U disk start to DMG, CD start to ISO, ha ha, or obediently choose U disk bar, cheap!) It is recommended to download a low version of the image, and then slowly upgrade, download is a very long process);

3. For the production of the tool software and images are ready, the next is of course to prepare a capacity of not less than 8GB of the blank USB flash drive, for the production of MAC system installation USB drive.

4. Next we plug the USB stick into the computer and then open the previously installed Transmac software to find the USB flash drive that appears on the left side of the window.

5. First we need to format the USB drive as a disk in the MAC system, select the USB drive and right-click the "format Disk for MAC" option.

6. Next you can think of a USB stick name, and then keep the default Mac OS Extended hfs+,

7. Then the software will indicate whether we want to format this USB drive as a MAC disk, and click the OK button to continue.

8. When the USB drive is formatted, select the USB flash drive and right-click on the "Restore with Disk image" option,

10. As shown, here I have selected a Mac OS X 10.10.1 mac system image.

11. Similarly, the software will prompt us to erase the data on the USB drive and click the "Yes" button to continue.

12. Then please slowly wait for the software to restore the image of the MAC system to the USB drive (slow, good, etc.),

13. Then you'll be on the Mac, and we'll need to switch the boot disk at boot time by option.

14. Thought to the installation system this step can be successful, but the unfortunate thing happened again, the system prompted me this image in the download process was tampered with (heart 10,000 grass mud horse appeared, I do not re-download, do not re-create U disk! ), later on a variety of information, Kung Fu is not a conscientious, let me find a good way. To return to the utility, open the terminal:

If the above method can not be modified, then enter the following code to try

Date 062614102014.30

Then go back to reload OS X on the line. If there is any problem in this process, you can always add: wanghjbuf communication. The above method all textual research!!!

Mac Merge partition failed to find partition map/u disk starter/Reload system