Yusuke Nakamura 6fa865562d Use last loop device from loopdev -l ... In my env, `make image/sd.img` failed by following error. ``` + sudo kpartx -av /home/unasuke/src/github.com/brain-hackers/buildbrain/image/sd.img add map loop6p1 (253:8): 0 131072 linear 7:6 2048 add map loop6p2 (253:9): 0 12154880 linear 7:6 133120 ++ losetup -l ++ grep -o loop. ++ grep sd.img + LOOPDEV='loop6 loop4 loop5 loop3' + sudo mkfs.fat -F32 -v -I /dev/mapper/loop6 loop4 loop5 loop3p1 mkfs.fat 4.1 (2017-01-24) Bad block count : loop4 Usage: mkfs.fat [-a][-A][-c][-C][-v][-I][-l bad-block-file][-b backup-boot-sector] [-m boot-msg-file][-n volume-name][-i volume-id] [-s sectors-per-cluster][-S logical-sector-size][-f number-of-FATs] [-h hidden-sectors][-F fat-size][-r root-dir-entries][-R reserved-sectors] [-M FAT-media-byte][-D drive_number] [--invariant] [--help] /dev/name [blocks] make: *** [Makefile:126: image/sd.img] エラー 1 ```		2021-05-05 22:05:49 +09:00
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build_image.sh	Use last loop device from loopdev -l	2021-05-05 22:05:49 +09:00