atmark@atde7:~/make-install-disk-image-v1.1.0$ sudo ./build.sh a640 ~/images/u-boot-a600-v2018.03-at8.imx  ~/images/uImage-a600-v4.14-at20 ~/images/armadillo-640-v4.14-at20.dtb ~/images/debian-stretch-armhf-a600-20200421.tar.gz 
[sudo] atmark のパスワード:
0+0 レコード入力
0+0 レコード出力
0 bytes copied, 0.000135198 s, 0.0 kB/s
Checking that no-one is using this disk right now ... OK

Disk /dev/loop0: 83 MiB, 87031808 bytes, 169984 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

>>> Created a new DOS disklabel with disk identifier 0x687aea80.
/dev/loop0p1: Created a new partition 1 of type 'W95 FAT32' and of size 2 MiB.
/dev/loop0p2: Created a new partition 2 of type 'Linux' and of size 80 MiB.
/dev/loop0p3: Done.

New situation:

Device       Boot Start    End Sectors Size Id Type
/dev/loop0p1       2048   6143    4096   2M  b W95 FAT32
/dev/loop0p2       6144 169983  163840  80M 83 Linux

The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
mkfs.fat 4.1 (2017-01-24)
mke2fs 1.43.4 (31-Jan-2017)
Discarding device blocks: done                            
Creating filesystem with 81920 1k blocks and 20480 inodes
Filesystem UUID: c79064e0-63ad-4213-9a25-a2eba2fafd34
Superblock backups stored on blocks: 
	8193, 24577, 40961, 57345, 73729

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done 

291+0 レコード入力
291+0 レコード出力
297984 bytes (298 kB, 291 KiB) copied, 0.0233618 s, 12.8 MB/s
atmark@atde7:~/make-install-disk-image-v1.1.0$ ls -oh
合計 547M
-rwxrwxrwx 1 atmark 4.0K  2月 26 16:19 build.sh
drwxrwxrwx 3 atmark 4.0K  2月 26 16:19 core
-rwxrwxrwx 1 atmark 512M  4月 22 13:24 install-disk-sd-a600-20200319.img
-rw-r--r-- 1 root    83M  4月 22 15:21 install-disk-sd-a640-20200422.img