On Wed, 24 Aug 2011 15:53:47 +0200 Tom Gundersen <teg@xxxxxxx> wrote: Thanks very much for the tips, but I haven't found my device on /sys > To get a better idea of what is happening, check `dmesg` for any > messages regarding your tape-drive. You could also do `rmmod st && > modprobe -v st` and check the output to the console and dmesg for any > errors. modprobe -v st shows: insmod /lib/modules/2.6.33-ARCH/kernel/drivers/scsi/st.ko > Finally, I'd find the path to your device in /sys and look in the > modalias file. This needs to match one of the modalias expressions you > see in `modinfo st`. A simple way to check this is to `modprobe -R > <your modalias>`. It should tell you the name of the modules it > matches with. /sys/class/scsi_tape is empty.