image: Add fat32 support.

* gnu/build/image.scm (make-vfat-image): Pass fs-bits as an argument and force
1kb logical sector size only if "ESP" flag is set.
(make-partition-image): Add "fat32" partition type, support explicit "fat16"
type with vfat alias.
* gnu/system/image.scm (partition->dos-type partition): Return file system IDs
for "fat16" and "fat32" partitions.
(partition->gpt-type partition): Ditto.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/gnu/system/image.scm b/gnu/system/image.scm
index dd32e58c2d5..f02f6e0b8c2 100644
--- a/gnu/system/image.scm
+++ b/gnu/system/image.scm
@@ -312,7 +312,9 @@ used in the image."
         (cond
          ((member 'esp flags) "0xEF")
          ((string-prefix? "ext" file-system) "0x83")
-         ((string=? file-system "vfat") "0x0E")
+         ((or (string=? file-system "vfat")
+              (string=? file-system "fat16")) "0x0E")
+         ((string=? file-system "fat32") "0x0C")
          (else
           (raise (condition
                   (&message
@@ -329,7 +331,9 @@ used in the image."
         (cond
          ((member 'esp flags) "U")
          ((string-prefix? "ext" file-system) "L")
-         ((string=? file-system "vfat") "F")
+         ((or (string=? file-system "vfat")
+              (string=? file-system "fat16")
+              (string=? file-system "fat32")) "F")
          (else
           (raise (condition
                   (&message