Note: The Size: field should automatically default to all the available free space. Next, click on the OK button.įor the Mount point:, select /, as shown below, then click on the OK button.
Since my Mac has 4 GiB of RAM, the "Size:" field should be 8590 MB. A typical value for swap space is twice the amount of RAM memory installed. For Location for the new partition:, select End of this space. Select free space, as shown below, then click on the + button.Ĭreate swap space. When the following display occurs, select Something else, as shown below, then click on the Continue button. These boot files a stored in a way compatible with the Mac Startup Manager. Basically, I added a new partition for the Ubuntu files and allowed the EFI partition to be default for storing the GRUB boot files.
You can now shutdown Windows 10 and install Ubuntu in the free space.īelow are display snapshots illustrating the partitioning I chose while installing Ubuntu. The operation has completed successfully. OK writing new GUID partition table (GPT) to \\?\PhysicalDrive0.ĭisk synchronization succeeded! The computer should now use the new Command (? for help): wįinal checks complete. Write out the changes and quit, as shown below. Total free space is 204802014 sectors (97.7 GiB) Partitions will be aligned on 2048-sector boundaries Main partition table begins at sector 2 and ends at sector 33įirst usable sector is 34, last usable sector is 1048575966 Print out the GPT to verify partition 4 has the correct values, as shown below.
Hex code or GUID (L to show codes, Enter = 700): 700Ĭhanged type of partition to 'Microsoft basic data' Below is an example, where the copy is accomplished be deleting and creating a corrected partition 4. Also, your boot partition number may be 3 instead of the value of 4 used in this example. Note: your start and end values will be different from the values of 211458075966 used in this example. The boot partition information needs to be copied to the GUID partition table (GPT). The * character shown above indicates partition 4 as the boot partition. You will need this information to rebuild the MBR partition table after installing Ubuntu. Note: You should record the information stored in this table. Recovery/transformation command (? for help): Number Boot Start Sector End Sector Status Code Recovery/transformation command (? for help): oĭisk size is 1048576000 sectors (500.0 GiB) An example is shown below.Įnter the following commands to print out the Master Boot Record (MBR) partition table. GPT fdisk (gdisk) version 1.0.4įound valid GPT with hybrid MBR using GPT.Įnter the commands needed to copy the size of the Windows boot partition from the Master Boot Record (MBR) partition table to the GUID partition table (GPT).
This will result is output similar to what is shown below. This error will be corrected in subsequent steps by using the gdisk command.Įnter the following command in a Administrator Command Prompt window to execute gdisk on your primary internal drive. Note: The Disk Manager has updated the Master Boot Record (MBR) partition table, but not the GUID Partition Table (GPT) used by macOS and Ubuntu. After entering the amount, select the Shrink button. In the example shown below, 100 GB was selected. Right click on the Windows boot partition and select Shrink volume., as shown below.Įnter the size needed for Ubuntu.
Note: If you are using APFS or Core Storage, then you will have to make the appropriate minor modifications to these instructions. The file ubuntu-18.04.1-desktop-amd64.iso was used to install Ubuntu.The Desktop Ubuntu version is 18.04.1 LTS.Windows 10 uses the legacy BIOS boot method.Boot Camp was used to install Windows 10.
The macOS operating system was installed to a partition formatted Mac OS Extended (Journaled).Steps Needed to Install Ubuntu after Installing macOS and Windows 10