磁带机被误删除后的处理办法争解

lingyunjing

小弟 不慎用rm -f /dev/st0删除了
用mt -f /dev/st0 status察看已经说
/dev/st0: Inappropriate ioctl for device

用mt -f /dev/nst0察看提示：
SCSI 2 tape drive:
File number=-1, block number=-1, partition=0.
Tape block size 0 bytes. Density code 0x0 (default).
Soft error count since last status=0
General status bits on (8050000):
EOD DR_OPEN IM_REP_EN

用dmesg看有这样的提示：
mtrr: type mismatch for fc000000,800000 old: uncachable new: write-combining
mtrr: type mismatch for fc000000,800000 old: uncachable new: write-combining
st0: Failed to read 10240 byte block with 512 byte read.
end_request: I/O error, dev 02:00 (floppy), sector 0

请问我应该如何恢复？
谢谢大家

lingyunjing

已经解决了：mknod /dev/st0 c 9 0
chmod 660 /dev/st0
chgrp disk /dev/st0