Booting TRK from USB or other medium – Fixing Can’t find TRK medium error
01 Sep 2018 by Shane  |  Fixes
Can’t find TRK Medium
If you are using the TRK (Trinity Rescue Kit) to boot up a machine you may run into a message saying:

Seems we didn't find the TRK medium
Manually enter the device on which TRK can be found (e.g. sda1):
If you don’t know what partition name your USB is showing as try entering “sdb1”

Using sdb1 Fails
Should using sdb1 fail then you will be given following messages to mount trkramfs on linkedfs. To do this follow the instructions below:

type “cat /proc/partitions”
This will give you a list of all the partitions. Partitions starting with sda are likely to be the main harddrive. (e.g. sda1, sda2 etc). sdb1 is likely to be your usb pen drive unless you have a second harddrive. If you see an sdc1 or sdd1 those are most likely to be the TRK  partitions.

To continue the booting sequence:
Assuming the usb pen drive is sdb1 then

mount /dev/sdb1 /trk
mount /trk/trk3/trkramfs /linkedfs -o loop
exit
At this point the boot sequence should continue.