Fix POSIX Error During Partitioning : In Simple & Effective Steps

Normally, Mac operating system do not create unnecessary issues until some unavoidable situation comes up. However, while using Mac operating system on daily basis in your life, Mac users might have faced unknown errors while partitioning or formatting Mac hard drive, external drive or USB flash drive. Among other errors, POSIX error is also a type of Mac error which arises when partition or format hard drive. In such situation, you need to be patient and search for the effective recovery solution. Here is the post given below to make you clear about the easy solution related to POSIX error and to help you to fix POSIX error during partitioning.

To understand better about the POSIX error, consider this illustration. “Suppose you are trying to partition your mac hard rive to create more space or may be you are trying to format the hard drive so as to erase unnecessary files from the system, but suddenly you encounter an error message which says: ‘Disk Erase failed with the error: POSIX reports: The operation couldn’t be completed. Cannot allocate memory’ and your on-going work stops or you put a halt. To be more specific, POSIX error is particularly for USB chipsets and firmware versions or settings in some drive enclosure. According to some Mac user, POSIX error can be fixed just by replacing drives, swapping or wiping drives, replacing memory module, installing OS, etc but the mythology is wrong and did not prove to be useful at all.

Solution To Fix POSIX Error

Few solutions are suggested so that you can fix POSIX error. At first, if POSIX error appears then check whether system boots up or not. If yes then check whether it copies or paste files over System Disk. In case, if not, then boot up your Mac from external OS drive. Try the same copying or pasting process. If you are again unable to write on disk, chances are high that the problem is for USB connection. Therefore, try to troubleshoot the problem. Yet, if the problem continues to exist, then try the given method. In order to fix POSIX error during partitioning, use terminal commands to resolve the issue. Back up your data and format the hard drive so as to access Disk Utility. Then use any of the two terminal commands :

  • “diskutil” command

        Type the ‘diskutil’ command to format the drive and replace the ‘NAME’ with disk name and ‘IDENTIFIER’ with ID of disk.

  • “fdisk” command

          fdisk is an alternative command for diskutil and is used to create partitions and set up disk.

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