我的光驱不能mount?!

ZhangDong

我的光驱mount不了?!

今天装上了RedHat Linux 9,我是从光盘启动安装的,一切正常.可是当我在KDE中没办法mount上光盘.
经过监查,系统提示光盘是/dev/hdc! 可是/etc/fstab 上面说是/dev/cdrom.
我在fstab上面就增加了一行:
/dev/hdc /mnt/CD udf,iso9660 noauto,owner,kudzu, ro 0 0
可是结果还是一样,经过很长的时间(光驱一直在狂读盘),系统提示:mount 不是一个目录!这之前在RedHat 7.3上面一切正常.
dmesg:
RH9:
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH: IDE controller at PCI slot 00:1f.1
ICH: chipset revision 2
ICH: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hdaMA, hdbio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdcMA, hddio
hda: ST340810A, ATA DISK drive
blk: queue c03c9f40, I/O limit 4095Mb (mask 0xffffffff)
hdc: SAMSUNG CD-ROM SC-140F, ATAPI CD/DVD-ROM drive
RH7.3:
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller on PCI bus 00 dev f9
PIIX4: chipset revision 2
PIIX4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hdaMA, hdbio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdcMA, hddio
hda: ST340810A, ATA DISK drive
hdc: SAMSUNG CD-ROM SC-140F, ATAPI CD/DVD-ROM drive
觉得IDE controler除了版本,没什麽不同.
在RH9下放入光盘,dmesg发现:
hdc: command error: status=0x51 { DriveReady SeekComplete Error }
hdc: command error: error=0x50
end_request: I/O error, dev 16:00 (hdc), sector 1407864
上面的内容重复许多次.
大家帮帮忙,解决一下吧.

吴文官

手动mount试一下
有时候烂光驱遇到烂碟时没办法mount
win2k下也会遇到这个问题
感觉在win98下光驱的读碟能力特强

ZhangDong

不管是/dev/cdrom 还是 /dev/hdc,我都手动mount过,结果一样,都不行.
光驱和光盘在Win98,WinXP, Redhat7.3下面都正常,光盘是新买的正版盘.
大侠多多帮忙,现在Linux下没有光驱太郁闷了.

cnhnln

是不是设置了光驱的DMA?

Bluedata

fstab改回原样。然后
ln -s /dev/hdc /mnt/cdrom

ZhangDong

/mnt/cdrom 已经是 /dev/hdc 的link了,mount不上呀.
唉,着急ing...