Bug 866106

Description of problem: Custom paritioning of /boot/efi for EFI mode forgets to name the partition "EFI System Partition" and also forgets to set the 'boot' flag for the partition.  Some BIOS accept this anyway, but anaconda isn't happy trying to re-use /boot/efi (for the next install) without the EFI markings.


Version-Release number of selected component (if applicable):
anaconda-18.16

How reproducible: always


Steps to Reproduce:
1. Boot installer in UEFI mode, choose custom partitioning.
2. Create partition for mount point /boot/efi, 50MB, EFI System Partition
3. Create partitions for /boot, /, and swap.
4. Finish
  
Actual results: 
# parted /dev/sda
(parted) print
Number  Start   End     Size    File system     Name                  Flags
 1      1049kB  53.5MB  52.4MB  fat16
 2      53.5MB  603MB   549MB   ext4
 3      603MB   17.5GB  16.9GB  ext4
 4      17.5GB  22.0GB  4503MB  linux-swap(v1)


Expected results:
Number  Start   End     Size    File system     Name                  Flags
 1      1049kB  53.5MB  52.4MB  fat16           EFI System Partition  boot
 2      53.5MB  603MB   549MB   ext4
 3      603MB   17.5GB  16.9GB  ext4
 4      17.5GB  22.0GB  4503MB  linux-swap(v1)


Additional info: The UEFI BIOS on my ASUS mainboard does recognize and boot in UEFI mode the configuration which lacks the designated name and flag.  But the next anaconda install on the same drive, where the user attempts to re-use /boot/efi, draws a complaint "you have not created a target for stage1 bootloader."