[hd_scania@trueos] ~% sudo mount -t ext2fs /dev/ada0p23 /data
mount: /dev/ada0p23: Operation not permitted
[hd_scania@trueos] ~% sudo gpart show
=> 34 976773101 ada0 GPT (466G)
34 2014 - free - (1.0M)
2048 58484736 1 freebsd-zfs (28G)
58486784 235520 - free - (115M)
58722304 16777216 2 freebsd-swap (8.0G)
75499520 58720256 3 freebsd-zfs (28G)
134219776 2097152 4 efi (1.0G)
136316928 33554432 5 linux-data (16G)
169871360 33554432 6 linux-data (16G)
203425792 33554432 7 linux-data (16G)
236980224 33554432 8 linux-data (16G)
270534656 16777216 9 linux-swap (8.0G)
287311872 33554432 10 linux-data (16G)
320866304 33554432 11 linux-data (16G)
354420736 33554432 12 linux-data (16G)
387975168 33554432 13 linux-data (16G)
421529600 16777216 14 linux-swap (8.0G)
438306816 33554432 15 linux-data (16G)
471861248 33554432 16 linux-data (16G)
505415680 33554432 17 linux-data (16G)
538970112 33554432 18 linux-data (16G)
572524544 57200640 19 freebsd-zfs (27G)
629725184 235520 - free - (115M)
629960704 1048576 24 freebsd-swap (512M)
631009280 235520 - free - (115M)
631244800 2097152 20 freebsd-boot (1.0G)
633341952 58720256 21 freebsd-zfs (28G)
692062208 16777216 22 freebsd-swap (8.0G)
708839424 267933696 23 linux-data (128G)
976773120 15 - free - (7.5K)
=> 63 57200577 ada0p19 MBR (27G)
63 57200577 - free - (27G)
=> 63 57200577 gpt/TrueOS.1 MBR (27G)
63 57200577 - free - (27G)
[hd_scania@trueos] ~%