Are you getting mac terminal error 69888 while doing partition? Are you not able to correctly partition your SSD drive? Then don't worry browse this guide calmly to fix this issue in simple steps. Well, mac terminal error 69888 mostly occurs when you erased the data from SSD and try to reinstall your Mac OS version but during the process it fails and thus you get this error. However, you can do some troubleshooting tips to fix this issue like run fdisk to correct the MBR or unclosed references to the drive/partition but for that you have to especially open the terminal window. After that, Close that window and close all Finder windows that has reference to that volume, redo the steps. If still mac terminal error 69888 occurs then it might be a cumbersome situation as this error message will not allow you to access any files or if this error code happens frequently there are chances that you might lose all your precious data from hard drive. If any user is facing this dreadful error message and have lost their files due to any reason then we suggest you to take assistance of a powerful third party tool .i.e Mac Data Recovery Software. This tool is very advanced which will fix mac terminal error 69888 message easily and restore all the lost data from Mac terminal without any trouble.