Problems getting a single tape drive to work

[James Pulver]

I'm doing some PoC testing with a single LTO5 tape drive and individual LTO5 tapes. I changed tapes to a blank tape before trying to run a 1TB backup. For some reason BAREOS didn't autolabel the new tape. I tried manually labeling in the Full pool. Now no matter what trying to run a manual full backup to tape for that job I just get

Device "HPLTO5" (/dev/nst0) is waiting for sysop intervention:
   Volume:      bigfile1
   Pool:        Full
   Media type:  MLR1
   Device is BLOCKED waiting to create a volume for:
      Pool:        Full
      Media type:  MLR1
   Total Bytes Read=64,512 Blocks Read=1 Bytes/block=64,512
   Positioned at File=0 Block=0

I've tried unmounting, resetting/rewinding from bash, I've tried canceling the job, restarting, etc. I cannot figure out what to do to get BAREOS to ... do anything.

I've used some AI guidance and have checked list media:

21 | bigfile1   | Append    |       1 |         64,512 |        1 |   31,536,000 |       1
|    0 |         0 | MLR1      |                     | HPLTO5    |

But it just always blocks the same way. I'm not sure what to do.