[rhn-users] Plextor DVD+RW (PX-708A) in RH ES3

[Greg Dicheck]

I just converted an IBM x225 server from Gentoo 1.4 (kernel 2.4.24) to
RedHat ES3 (kernel 2.4.21-4EL).  The IBM x225 has factory default hardware
with a post-installed Plextor DVD+RW (PX-708A) drive installed as secondary
slave.  RedHat detects this drive as (/dev/hdd).
 
Under Gentoo, the drive could read DVD+RW discs without any problems and
could burn them with growisofs from the dvd+rw-tools package.  Since
installing RedHat ES3, the drive can read CD's, but it can not read DVD's
properly, particularly DVD+RW discs.  It can mount the discs, but the file
sizes are reported as much smaller than they should be.  For example, a
2.2GB tar.gz file reports a size of 7MB.  I've checked the DVD's in WinXP
and found that the DVD's are fine, reporting the correct file sizes.
 
I've spent a lot of time trying a variety of solutions, including a custom
kernel, but nothing helpful yet.  Any help would be much appreciated.
Thanks.
--Greg
 
The server has the following configuration:
 
/etc/raidtab
-------------
raiddev             /dev/md1
raid-level                  5
nr-raid-disks               3
chunk-size                  64k
persistent-superblock       1
nr-spare-disks              0
    device          /dev/sda3
    raid-disk     0
    device          /dev/sdb3
    raid-disk     1
    device          /dev/sdc3
    raid-disk     2
raiddev             /dev/md0
raid-level                  1
nr-raid-disks               2
chunk-size                  64k
persistent-superblock       1
nr-spare-disks              1
    device          /dev/sda1
    raid-disk     0
    device          /dev/sdb1
    raid-disk     1
    device          /dev/sdc1
    spare-disk    0

/boot/grub/grub.conf
---------------------
default=0
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Enterprise Linux ES (2.4.21-4.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-4.ELsmp ro root=/dev/md1 hdd=ide-scsi
        initrd /initrd-2.4.21-4.ELsmp.img
title Red Hat Enterprise Linux ES-up (2.4.21-4.EL)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-4.EL ro root=/dev/md1 hdd=ide-scsi
        initrd /initrd-2.4.21-4.EL.img

/etc/modules.conf
------------------
options ide-cd ignore=hdd
pre-install sg modprobe ide-scsi
pre-install sr_mod modprobe ide-scsi
pre-install ide-scsi modprobe ide-cd
alias eth0 tg3
alias scsi_hostadapter mptbase
alias scsi_hostadapter1 mptscsih
alias sound-slot-0 i810_audio
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null
2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null
2>&1 || :
alias usb-controller usb-uhci
alias usb-controller1 ehci-hcd

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/rhn-users/attachments/20050211/7bd77212/attachment.htm>