Question about /dev/sg vs /dev/st vs /dev/sch0

[atreya-basu]

Hello,

I am just starting to use LTFS (v2.4.8.1-10519) on Ubuntu 20.04. I believe I have built it correctly; it has built successfully using the instructions. Really great instructions BTW!

I have a Dell PowerVault TL 2000 scanning as an IBM 3573-TL with a IBM ULT3580-HH5 drive. This device shows up as: /dev/st0 when using lsscsi:

❯ sudo lsscsi
[0:0:0:0]    tape    IBM      ULT3580-HH5      H971  /dev/st0
[0:0:0:1]    mediumx IBM      3573-TL          F.11  /dev/sch0

When I run ' ltfs -o device_list' it fails to find the tape drive:

❯ bin/ltfs -o device_list;
1edc LTFS14000I LTFS starting, LTFS version 2.5.0.0 (Prelim), log level 2.
1edc LTFS14058I LTFS Format Specification version 2.4.0.
1edc LTFS14104I Launched by "bin/ltfs -o device_list".
1edc LTFS14105I This binary is built for Linux (x86_64).
1edc LTFS14106I GCC version is 9.4.0.
1edc LTFS17087I Kernel version: Linux version 5.15.0-139-generic (buildd@lcy02-amd64-067) (gcc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #149~20.04.1-Ubuntu SMP Wed Apr 16 08:29:56 UTC 2025 i386.
1edc LTFS17089I Distribution: NAME="Ubuntu".
1edc LTFS17089I Distribution: DISTRIB_ID=Ubuntu.
1edc LTFS17085I Plugin: Loading "sg" tape backend.
Tape Device list:.

It appears as if the utility is searching for devices under /dev/sgX . Do I need to recompile or reconfigure the ltfs build to search for /dev/stX ? If so, could someone point to any readme I can use?

Thank you!