Hi to all!!!!

i newbie on the list....


i have problems with cdrom after install redhat 9.0, during the instalation no problems, but when ths system start i can't mount cdrom, i have win98 on my system to and work perfectly, i check all and i don't know what happen, please help me!!!!!

i send all the test what i do

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[root@dune root]# cat /var/log/dmesg |grep cdrom
hdc: attached ide-cdrom driver.

[root@dune root]# ls -al /dev/cdrom
lrwxrwxrwx 1 root root 8 Jun 6 04:06 /dev/cdrom -> /dev/hdc

[root@dune root]# cat /etc/fstab
LABEL=/1 / xfs defaults 1 1
LABEL=/boot1 /boot xfs defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
LABEL=/usr1 /usr xfs defaults 1 2
/dev/hda3 swap swap defaults 0 0
/dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,user,ro 0 0

[root@dune root]# mount -t iso9660 /dev/hdc /mnt/cdrom/
mount: block device /dev/hdc is write-protected, mounting read-only
mount: Not a directory
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thanks to all!!!!!

try making a /mnt/cdrom directory and try again

yes i tried, i do the same thing.... :@

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[root@dune root]# mkdir /mnt/cdrom/
mkdir: cannot create directory `/mnt/cdrom/': File exists

[root@dune root]# rm -rf /mnt/cdrom/

[root@dune root]# mount -t iso9660 /dev/hdc /mnt/cdrom/
mount: mount point /mnt/cdrom/ does not exist

[root@dune root]# mkdir /mnt/cdrom

[root@dune root]# mount -t iso9660 /dev/hdc /mnt/cdrom/
mount: block device /dev/hdc is write-protected, mounting read-only
mount: Not a directory
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thanks for answer

ready... i find out the problem

went i check /var/log/message i find that
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Jun 6 06:59:33 dune kernel: hdc: status error: error=0x04Aborted Command
Jun 6 06:59:33 dune kernel: hdc: drive not ready for command
Jun 6 06:59:43 dune kernel: hdc: DMA interrupt recovery
Jun 6 06:59:43 dune kernel: hdc: lost interrupt
Jun 6 06:59:43 dune kernel: hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest }
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so i thing , this is dma problem

so i check
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[root@dune root]# hdparm /dev/hdc

/dev/hdc:
HDIO_GET_MULTCOUNT failed: Invalid argument
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 1 (on)
readahead = 8 (on)
HDIO_GETGEO failed: Invalid argument
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i disable dma i ready

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[root@dune root]# hdparm -d0 -X /dev/hdc

/dev/hdc:
setting using_dma to 0 (off)
setting xfermode to 0 (default PIO mode)
using_dma = 0 (off)
[root@dune root]# mount /mnt/cdrom/

[root@dune root]# ls /mnt/cdrom/
autorun.inf ext mpegav segment vcd vcd_play.exe

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Ready....... Thanks to all!!!!!!!!!1