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Description of problem: The system disk partition type displays as "Microsoft basic data" in RHEL guests on EC2. [root@ip-172-31-8-133 ~]# fdisk -l ... # Start End Size Type Name 1 2048 4095 1M BIOS boot parti 2 4096 41943006 20G Microsoft basic Version-Release number of selected component (if applicable): RHEL7.4 How reproducible: 100% Steps to Reproduce: 1. Start a RHEL7.4 instance on EC2. 2. Connect the instance and check the partition type of the system disk with "sudo fdisk -l" command. Actual results: The Partition type is "Microsoft basic data" as default. Expected results: The Partition type should be "Linux filesystem". Additional info: 1. The default partition type is "Microsoft basic data" if using "parted" command to manipulate disk partitions. We can see from the ks file "original-ks.cfg" in the instance that we use parted command during building the image, so please change the partition type after manipulating disk partitions or using fdisk to make the partitions. 2. I checked Amazon Linux, the partition type is "Linux filesystem".
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:2351