fix: efi fat32 compatibility with nvme 4KBn sector size

For Advanced Format 4K Native drives (4-KB-per-sector) drives, the minimum size is 260 MB, due to a limitation of the FAT32 file format
siderolabs · Jan 16, 2024 · a63ffa3 · a63ffa3
1 parent 6c5a0c2
commit a63ffa3
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/internal/pkg/partition/constants.go b/internal/pkg/partition/constants.go
@@ -30,7 +30,9 @@ const (
 const (
 	MiB = 1024 * 1024
 
-	EFISize      = 100 * MiB
+	// The actual minimum size is 65595 × 4 KB(NVME sector size)
+	// = 268677120 bytes = 256.23046875 MB.
+	EFISize      = 260 * MiB
 	BIOSGrubSize = 1 * MiB
 	BootSize     = 1000 * MiB
 	// EFIUKISize is the size of the EFI partition when UKI is enabled.