[crochet, wandboard] newfs_msdos: 12762 clusters too few clusters for FAT32, need 65525

[Boris Samorodov]

Hi All,

Using crochet to create an image for wandboard:
-----
[...]
Creating a 3900MB raw disk image in:

/home/bsam/crochet-freebsd-master/work/FreeBSD-armv6-11.0-IMX6-r266491.img
Partitioning the raw disk image at среда, 21 мая 2014 г. 13:24:15 (SAMT)
gpart create -s MBR md1
md1 created
Installing U-Boot to /dev/md1
582+0 records in
582+0 records out
297984 bytes transferred in 6.019639 secs (49502 bytes/sec)
Creating a 50m FAT partition at среда, 21 мая 2014 г. 13:24:21 (SAMT)
with start block 16384 and label BOOT
active set on md1s1
newfs_msdos: 12762 clusters too few clusters for FAT32, need 65525
-----

The line from board/Wandboard/setup.sh "disk_fat_create 50m 32 16384"
uses FA32 and fails. After I change the line to "disk_fat_create 50m 16
16384" (use FAT16) the command succeeds.

This change seems to be in par with code at lib/disk.sh:
-----
    _FAT_TYPE=$2
    if [ -z "${_FAT_TYPE}" -o \( "${_FAT_TYPE}" = "-1" \) ]; then
        case $1 in
            *k | [1-9]m | 1[0-6]m) _FAT_TYPE=12
                ;;
            *m) _FAT_TYPE=16
                ;;
            *g) _FAT_TYPE=32
                ;;
        esac
-----

I.e. if a partition is set in megabytes, use FAT16.

-- 
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve