When building the agent ISO with the debug log level enabled, a number of FAT32 error messages are logged. They do not hamper the ISO creation, but they make the log output very noisy and harder to read (and moreover they are not necessary).

    4.16

    Create an agent ISO (the configuration does not matter) with the debug log level

    1.$ openshift-install agent create image --log-level=debug

    The ouput contains several traces like following:

...
level=debug msg=trying fat32
level=debug msg=fat32 failed: error reading MS-DOS Boot Sector: could not read FAT32 BIOS Parameter Block from boot sector: could not read embedded DOS 3.31 BPB: error reading embedded DOS 2.0 BPB: invalid sector size 37008 provided in DOS 2.0 BPB. Must be 512
level=debug msg=trying iso9660 with physical block size 0
...

 The above traces are not shown