This is a CentOS 7 system, fully updated. Originally installed as 7.4.

[2023-10-21T15:20:23+0000] DEBUG - Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/convert2rhel/main.py", line 144, in main_locked
    post_ponr_changes()
  File "/usr/lib/python2.7/site-packages/convert2rhel/main.py", line 269, in post_ponr_changes
    post_ponr_conversion()
  File "/usr/lib/python2.7/site-packages/convert2rhel/main.py", line 299, in post_ponr_conversion
    grub.post_ponr_set_efi_configuration()
  File "/usr/lib/python2.7/site-packages/convert2rhel/grub.py", line 589, in post_ponr_set_efi_configuration
    _replace_efi_boot_entry()
  File "/usr/lib/python2.7/site-packages/convert2rhel/grub.py", line 524, in _replace_efi_boot_entry
    efibootinfo_new = _add_rhel_boot_entry(efibootinfo_orig)
  File "/usr/lib/python2.7/site-packages/convert2rhel/grub.py", line 397, in _add_rhel_boot_entry
    dev_number = _get_device_number(get_efi_partition())
  File "/usr/lib/python2.7/site-packages/convert2rhel/grub.py", line 173, in _get_device_number
    return int(partition_number)
ValueError: invalid literal for int() with base 10: ''

WARNING - The conversion process failed.

Above was caused by the call:

output, ecode = utils.run_subprocess(["/usr/sbin/blkid", "-p", "-s", "PART_ENTRY_NUMBER", device], print_output=False

Returning empty string because I do not have PART_ENTRY_NUMBER in my bootloader.

Output of "blkid -p /dev/md125":

/dev/md125: SEC_TYPE="msdos" UUID="299B-560E" VERSION="FAT16" TYPE="vfat" USAGE="filesystem"