Linux Install on Mac. macOS asks to Initialize

Install of Linux on Mac went fine, but I want to get rid of the initialize unreadable popup for the disk after macOS boots. Tried adding the UUIDs in the fstab file but it did not work.

The disk you inserted was not readable by this computer.
Initialize... | Ignore | Eject

Do I need the UUID of the disk itself? It's an 80 GB disk dedicated to Linux with 3 partition.

One 1 MB Bios Boot Partition, an EXT4 of 60 GB for Linux Filesystem and a Linux Swap of 15 GB.

I had added the UUIDs of the the three partition as that was all I could get of them.

/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *240.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         239.5 GB   disk0s2
   3:                  Apple_HFS Refind                  313.3 MB   disk0s3

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +239.5 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD - Data     139.4 GB   disk1s1
   2:                APFS Volume Preboot                 44.7 MB    disk1s2
   3:                APFS Volume Recovery                731.4 MB   disk1s3
   4:                APFS Volume VM                      1.1 MB     disk1s4
   5:                APFS Volume Macintosh HD            11.0 GB    disk1s5

/dev/disk2 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:       Microsoft Basic Data ExtraWindows            499.9 GB   disk2s2
   3:                  Apple_HFS MAC                     499.1 GB   disk2s3
   4:                 Apple_Boot Recovery HD             650.0 MB   disk2s4

/dev/disk3 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *750.2 GB   disk3
   1:                        EFI EFI                     209.7 MB   disk3s1
   2:                  Apple_HFS Davenpart               250.1 GB   disk3s2
   3:                  Apple_HFS Wellrose                318.1 GB   disk3s3
   4:       Microsoft Basic Data DOSSER                  181.4 GB   disk3s4

/dev/disk4 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *180.0 GB   disk4
   1:               Windows_NTFS Window 10               179.5 GB   disk4s1
   2:                       0x27                         504.4 MB   disk4s2

/dev/disk5 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *80.0 GB    disk5
   1:        Bios Boot Partition                         1.0 MB     disk5s1
   2:           Linux Filesystem                         65.0 GB    disk5s2
   3:                 Linux Swap                         15.0 GB    disk5s3

lysanderlenihan@Lysanders-Mac-Pro-X ~ % 

Having switched the installations grub to EFI and having shrunk the EXT4 partition by 200 mb, creating a fat 32 partition and naming it EFI, the message does not show up anymore.

Additionally, the Nvidia driver works as well in EFI mode. I would not expect though that any of the non bios version drivers would work. 340 is the one marked "bios".