hardware device path
 

How to check the hardware device path ? eg backup tape drive is "/dev/tape" etc . Thx.

cat /proc/devices

will list the character and block devices.

i run the "cat /proc/devices" , it shows the character and device, but what is the exact device path? eg ./dev/tape is the tape device.

take a look at /usr/src/linux/Documentation/devices.txt .... It'll have everything you're looking for

here's an exerpt from it:

SCSI tape devices
0 = /dev/st0 First SCSI tape, mode 0
1 = /dev/st1 Second SCSI tape, mode 0
...
32 = /dev/st0l First SCSI tape, mode 1
33 = /dev/st1l Second SCSI tape, mode 1
...
64 = /dev/st0m First SCSI tape, mode 2
65 = /dev/st1m Second SCSI tape, mode 2
...
96 = /dev/st0a First SCSI tape, mode 3
97 = /dev/st1a Second SCSI tape, mode 3
...
128 = /dev/nst0 First SCSI tape, mode 0, no rewind
129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
...
160 = /dev/nst0l First SCSI tape, mode 1, no rewind
161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
...
192 = /dev/nst0m First SCSI tape, mode 2, no rewind
193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
...
224 = /dev/nst0a First SCSI tape, mode 3, no rewind
225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
...

EDIT:

here's for IDE:

IDE tape
0 = /dev/ht0 First IDE tape
1 = /dev/ht1 Second IDE tape
...
128 = /dev/nht0 First IDE tape, no rewind-on-close
129 = /dev/nht1 Second IDE tape, no rewind-on-close
...