I recently tried using a USB Flash Drive (64GB Capacity) under OpenBSD 6.7 on both amd64 and arm64. It's detected as a umass0 device, but won't display the disksize/sector line in dmesg and is not available for me to use as a drive. This drive does work on other operating systems, so I know the drive is functional.
I compiled with options SCSIDEBUG and UMASS_DEBUG, and now seeing this in dmesg: umass0 at uhub0 port 9 configuration 1 interface 0 "PNY Technologies USB 3.0 FD" rev 3.00/1.00 addr 2 umass0: using SCSI over Bulk-Only scsibus4 at umass0: 2 targets, initiator 0 probe(umass0:1:0): got 36 of 55 bytes of inquiry data: ------------------------------ 000: 00 80 06 02 33 00 00 00 50 4e 59 00 00 00 00 00 016: 55 53 42 20 33 2e 30 20 46 44 00 00 00 00 00 00 032: 00 00 00 00 ------------------------------ probe(umass0:1:0): got 55 of 55 bytes of inquiry data: ------------------------------ 000: 00 80 06 02 33 00 00 00 50 4e 59 00 00 00 00 00 016: 55 53 42 20 33 2e 30 20 46 44 00 00 00 00 00 00 032: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 048: 00 00 00 00 00 00 00 ------------------------------ scsi_inqmatch: match priority 2. T_DIRECT T_REMOV <"", "", ""> sd0 at scsibus4 targ 1 lun 0: <PNY, USB 3.0 FD, > SCSI/SPC-4 removable serial.154b...... probe(umass0:1:0): state 0, luns 1, openings 1 probe(umass0:1:0): flags (0x0801) <REMOVABLE, UMASS> probe(umass0:1:0): quirks (0x4008) <NOTAGS, ONLYBIG> sd0(umass0:1:0): Check Condition (error 0) on opcode 0x1e sd0(umass0:1:0): Check Condition (error 0) on opcode 0x9e sd0(umass0:1:0): read capacity 10 data: ------------------------------ 000: 00 00 00 00 00 00 00 00 ------------------------------ sd0(umass0:1:0): Check Condition (error 0) on opcode 0x1e sd0(umass0:1:0): Check Condition (error 0) on opcode 0x9e sd0(umass0:1:0): read capacity 10 data: ------------------------------ 000: 00 00 00 00 00 00 00 00 ------------------------------ When trying to edit it under fdisk, it gives me Device not configured: # fdisk -e /dev/rsd0c # fdisk: /dev/rsd0c: Device not configured I presume this has to something to do with the "read capacity 10 data" showing null bytes. I looked at this field with other (working) USB Flash drives and they have non-null data here. My knowledge in this area is limited, but I'd like to learn how to fix this. I know I could just get another flash drive, but I enjoy the challenge. Any pointers on where to go from here would be really appreciated. Thanks!
