1. root@ubuntu-desktop:~/Downloads/SkiffOS# make cmd/bananapi/common/format
2. make[1]: Entering directory '/home/ubuntu/Downloads/SkiffOS/build'
3. make[2]: Entering directory '/home/ubuntu/Downloads/SkiffOS/configs/bananapi/common/extensions'
4. Are you sure? This will completely destroy all data. [y/N] y
5. Verify that '/dev/sdb' is the correct device. Be sure. [y/N] y
6. + set -e
7. + echo 'Formatting device...'
8. Formatting device...
9. + parted /dev/sdb mklabel msdos
10. Warning: The existing disk label on /dev/sdb will be destroyed and all data on
11. this disk will be lost. Do you want to continue?
12. Yes/No? Yes                                                              
13. Information: You may need to update /etc/fstab.
14.  
15. + echo 'Making boot partition...'                                        
16. Making boot partition...
17. + parted -a optimal /dev/sdb mkpart primary fat32 2MiB 310MiB
18. Information: You may need to update /etc/fstab.
19.  
20. + parted /dev/sdb set 1 boot on                                          
21. Information: You may need to update /etc/fstab.
22.  
23. + parted /dev/sdb set 1 lba on                                            
24. Information: You may need to update /etc/fstab.
25.  
26. + PI_SD_Subuntu=/dev/sdb                                                      
27. + '[' -b /dev/sdbp1 ']'
28. + mkfs.vfat -F 32 /dev/sdb1
29. mkfs.fat 4.1 (2017-01-24)
30. mkfs.vfat: unable to open /dev/sdb1: No such file or directory
31. Makefile:2: recipe for target 'format' failed
32. make[2]: *** [format] Error 1
33. make[2]: Leaving directory '/home/ubuntu/Downloads/SkiffOS/configs/bananapi/common/extensions'
34. Makefile:10: recipe for target 'cmd/bananapi/common/format' failed
35. make[1]: *** [cmd/bananapi/common/format] Error 2
36. make[1]: Leaving directory '/home/ubuntu/Downloads/SkiffOS/build'
37. Makefile:2: recipe for target 'cmd/bananapi/common/format' failed
38. make: *** [cmd/bananapi/common/format] Error 2
39.