请帮忙,我的ubuntu没有办法mount光驱了 ：（

board

我装的是ubuntu系统，mount不了光驱
root@aabc:/home/board# mount /dev/hdb /mnt/
mount: block device /dev/hdb is write-protected, mounting read-only
mount: /dev/hdb: can't read superblock

内核信息如下：
root@aabc:/home/board# uname -a
Linux aabc 2.6.15-51-server #1 SMP Tue Feb 12 17:12:18 UTC 2008 i686 GNU/Linux

dmesg信息如下：

1. [42949375.050000]     ide0: BM-DMA at 0x1100-0x1107, BIOS settings: hda:DMA, hdb:DMA
   
2. [42949375.050000] Probing IDE interface ide0...
   
3. [42949375.070000] input: AT Translated Set 2 keyboard as /class/input/input0
   
4. [42949375.360000] hda: HTS421260H9AT00, ATA DISK drive
   
5. [42949375.840000] hdb: MATSHITADVD-RAM UJ-845S, ATAPI CD/DVD-ROM drive
   
6. [42949375.900000] ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
   
7. [42949375.920000] hda: max request size: 1024KiB
   
8. [42949375.920000] hda: 117210240 sectors (60011 MB) w/1570KiB Cache, CHS=16383/255/63, UDMA(100)
   
9. [42949375.920000] hda: cache flushes supported
   
10. [42949375.920000]  hda: hda1 hda2 hda3
    
11. [42949375.940000] hdb: ATAPI 24X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache, UDMA(33)
    
12. [42949375.940000] Uniform CD-ROM driver Revision: 3.20
    
13. [43005494.170000] cdrom: open failed.
    
14. [43005494.170000] cdrom: open failed.
    
15. [43005499.740000] cdrom: open failed.
    
16. [43005499.740000] cdrom: open failed.
    
17. [43005607.130000] hdb: command error: status=0x51 { DriveReady SeekComplete Error }
    
18. [43005607.130000] hdb: command error: error=0x50 { LastFailedSense=0x05 }
    
19. [43005607.130000] ide: failed opcode was: unknown
    
20. [43005607.130000] end_request: I/O error, dev hdb, sector 0
    
21. [43005607.130000] Buffer I/O error on device hdb, logical block 0
    
22. [43005607.130000] hdb: command error: status=0x51 { DriveReady SeekComplete Error }
    
23. [43005607.130000] hdb: command error: error=0x50 { LastFailedSense=0x05 }
    
24. [43005607.130000] ide: failed opcode was: unknown
    
25. [43005607.130000] end_request: I/O error, dev hdb, sector 0
    
26. [43005607.130000] Buffer I/O error on device hdb, logical block 0
    
27. [43005607.140000] hdb: command error: status=0x51 { DriveReady SeekComplete Error }
    
28. [43005607.140000] hdb: command error: error=0x50 { LastFailedSense=0x05 }
    
29. [43005607.140000] ide: failed opcode was: unknown

复制代码

root@aabc:/home/board# eject -t /dev/hdb
eject: CD-ROM tray close command failed: Input/output error

但是eject 却可以弹出盘片出来