Hi John,
Thank you for the reply.
I can get the partitions exposed, but I seem to be unable to then actually mount a partition : mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p1, missing codepage or helper program, or other error.
This is on Ubuntu bionic.
robin@ubuntu:~$ ls -hal /dev/loop*
brw-rw---- 1 root disk 7, 0 Sep 18 05:00 /dev/loop0
brw-rw---- 1 root disk 7, 1 Sep 18 05:00 /dev/loop1
brw-rw---- 1 root disk 7, 10 Sep 18 05:00 /dev/loop10
brw-rw---- 1 root disk 7, 11 Sep 18 05:00 /dev/loop11
brw-rw---- 1 root disk 7, 12 Sep 18 05:00 /dev/loop12
brw-rw---- 1 root disk 7, 13 Sep 18 05:01 /dev/loop13
brw-rw---- 1 root disk 7, 14 Sep 18 05:00 /dev/loop14
brw-rw---- 1 root disk 7, 15 Sep 18 05:00 /dev/loop15
brw-rw---- 1 root disk 7, 16 Sep 18 05:00 /dev/loop16
brw-rw---- 1 root disk 7, 17 Sep 18 05:00 /dev/loop17
brw-rw---- 1 root disk 7, 18 Sep 18 05:00 /dev/loop18
brw-rw---- 1 root disk 7, 2 Sep 18 05:00 /dev/loop2
brw-rw---- 1 root disk 7, 3 Sep 18 05:00 /dev/loop3
brw-rw---- 1 root disk 7, 4 Sep 18 05:00 /dev/loop4
brw-rw---- 1 root disk 7, 5 Sep 18 05:00 /dev/loop5
brw-rw---- 1 root disk 7, 6 Sep 18 05:00 /dev/loop6
brw-rw---- 1 root disk 7, 7 Sep 18 05:00 /dev/loop7
brw-rw---- 1 root disk 7, 8 Sep 18 05:00 /dev/loop8
brw-rw---- 1 root disk 7, 9 Sep 18 05:00 /dev/loop9
crw-rw---- 1 root disk 10, 237 Sep 18 05:00 /dev/loop-control
robin@ubuntu:~$ sudo losetup -Pf ~/Downloads/balena-cloud-jn30b-nano-2.56.0+rev1-dev-v11.14.0.img
robin@ubuntu:~$ ls -hal /dev/loop*
brw-rw---- 1 root disk 7, 0 Sep 18 05:00 /dev/loop0
brw-rw---- 1 root disk 7, 1 Sep 18 05:00 /dev/loop1
brw-rw---- 1 root disk 7, 10 Sep 18 05:00 /dev/loop10
brw-rw---- 1 root disk 7, 11 Sep 18 05:00 /dev/loop11
brw-rw---- 1 root disk 7, 12 Sep 18 05:00 /dev/loop12
brw-rw---- 1 root disk 7, 13 Sep 18 05:02 /dev/loop13
brw-rw---- 1 root disk 259, 0 Sep 18 05:02 /dev/loop13p1
brw-rw---- 1 root disk 259, 9 Sep 18 05:02 /dev/loop13p10
brw-rw---- 1 root disk 259, 10 Sep 18 05:02 /dev/loop13p11
brw-rw---- 1 root disk 259, 11 Sep 18 05:02 /dev/loop13p12
brw-rw---- 1 root disk 259, 12 Sep 18 05:02 /dev/loop13p13
brw-rw---- 1 root disk 259, 13 Sep 18 05:02 /dev/loop13p14
brw-rw---- 1 root disk 259, 14 Sep 18 05:02 /dev/loop13p15
brw-rw---- 1 root disk 259, 15 Sep 18 05:02 /dev/loop13p16
brw-rw---- 1 root disk 259, 1 Sep 18 05:02 /dev/loop13p2
brw-rw---- 1 root disk 259, 2 Sep 18 05:02 /dev/loop13p3
brw-rw---- 1 root disk 259, 3 Sep 18 05:02 /dev/loop13p4
brw-rw---- 1 root disk 259, 4 Sep 18 05:02 /dev/loop13p5
brw-rw---- 1 root disk 259, 5 Sep 18 05:02 /dev/loop13p6
brw-rw---- 1 root disk 259, 6 Sep 18 05:02 /dev/loop13p7
brw-rw---- 1 root disk 259, 7 Sep 18 05:02 /dev/loop13p8
brw-rw---- 1 root disk 259, 8 Sep 18 05:02 /dev/loop13p9
brw-rw---- 1 root disk 7, 14 Sep 18 05:00 /dev/loop14
brw-rw---- 1 root disk 7, 15 Sep 18 05:00 /dev/loop15
brw-rw---- 1 root disk 7, 16 Sep 18 05:00 /dev/loop16
brw-rw---- 1 root disk 7, 17 Sep 18 05:00 /dev/loop17
brw-rw---- 1 root disk 7, 18 Sep 18 05:00 /dev/loop18
brw-rw---- 1 root disk 7, 2 Sep 18 05:00 /dev/loop2
brw-rw---- 1 root disk 7, 3 Sep 18 05:00 /dev/loop3
brw-rw---- 1 root disk 7, 4 Sep 18 05:00 /dev/loop4
brw-rw---- 1 root disk 7, 5 Sep 18 05:00 /dev/loop5
brw-rw---- 1 root disk 7, 6 Sep 18 05:00 /dev/loop6
brw-rw---- 1 root disk 7, 7 Sep 18 05:00 /dev/loop7
brw-rw---- 1 root disk 7, 8 Sep 18 05:00 /dev/loop8
brw-rw---- 1 root disk 7, 9 Sep 18 05:00 /dev/loop9
crw-rw---- 1 root disk 10, 237 Sep 18 05:00 /dev/loop-control
robin@ubuntu:~$ cd /mnt
robin@ubuntu:/mnt$ sudo mkdir resin-boot
robin@ubuntu:/mnt$ sudo mount /dev/loop13p1 /mnt/resin-boot/
mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p1, missing codepage or helper program, or other error.
robin@ubuntu:/mnt$ sudo mount /dev/loop13p2 /mnt/resin-boot/
mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p2, missing codepage or helper program, or other error.
robin@ubuntu:/mnt$ sudo mount /dev/loop13p3 /mnt/resin-boot/
mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p3, missing codepage or helper program, or other error.
robin@ubuntu:/mnt$ sudo mount /dev/loop13p3 /mnt/resin-boot/
mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p3, missing codepage or helper program, or other error.
robin@ubuntu:/mnt$ sudo mount /dev/loop13p4 /mnt/resin-boot/
mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p4, missing codepage or helper program, or other error.
Explicitly specifying vfat as fstype does not seem to help either:
robin@ubuntu:/mnt/loop$ sudo mount -t vfat /dev/loop13p1 /mnt/resin-boot/
mount: /mnt/resin-boot: wrong fs type, bad option, bad superblock on /dev/loop13p1, missing codepage or helper program, or other error.