# sdb is a Kingston flash stick
# Lubuntu 15.10 is installed on sdb1
# Lubuntu boots fine on a 2005 Dell,
# but won't boot on 2011 MacBook Pro.
# When holding Option during power up
# the boot disk selection menu appears.
# The flash stick is not shown, only
# Macintosh HD is shown in the boot disk menu.
Disk /dev/sdb: 31.5GB
lubuntu@lubuntu:~$ sudo parted --list
Model: ATA TOSHIBA MK5065GS (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 20.5kB 210MB 210MB fat32 EFI system partition boot
2 210MB 499GB 499GB hfs+ Macintosh HD
3 499GB 500GB 650MB hfs+ Recovery HD
Model: Kingston DataTraveler 3.0 (scsi)
Disk /dev/sdb: 31.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kB 15.7GB 15.7GB ext4 primary boot
2 15.7GB 31.5GB 15.7GB ext4 primary
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
has been opened read-only.
Error: Can't have a partition outside the disk!
Error: /dev/zram0: unrecognised disk label
Error: /dev/zram1: unrecognised disk label
Error: /dev/zram2: unrecognised disk label
Error: /dev/zram3: unrecognised disk label
Error: /dev/zram4: unrecognised disk label
Error: /dev/zram5: unrecognised disk label
Error: /dev/zram6: unrecognised disk label
Error: /dev/zram7: unrecognised disk label