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authorBill Nottingham <notting@redhat.com>2002-03-28 19:49:45 +0000
committerBill Nottingham <notting@redhat.com>2002-03-28 19:49:45 +0000
commitabb300d07d90b880852af20d57ba273a25628e4d (patch)
treea6bd09397573b2535f8921c850bd542fccc65ecb
parent575ae92b5184d66926a2fea7f3c0ab974527f054 (diff)
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turrn off DMA on all CDs at boot <mingo@redhat.com>
-rwxr-xr-xrc.d/rc.sysinit11
1 files changed, 11 insertions, 0 deletions
diff --git a/rc.d/rc.sysinit b/rc.d/rc.sysinit
index 0555ae88..658c218d 100755
--- a/rc.d/rc.sysinit
+++ b/rc.d/rc.sysinit
@@ -351,6 +351,17 @@ mount -f /proc
[ -f /proc/bus/usb/devices ] && mount -f -t usbdevfs usbdevfs /proc/bus/usb
[ -e /dev/.devfsd ] && mount -f -t devfs devfs /dev
+# Turn off DMA on CD-ROMs. It more often than not causes problems.
+if [ -e /proc/ide ]; then
+ DRIVERS=`find /proc/ide/ -name driver`
+ if [ "$DRIVERS" != "" ]; then
+ for N in `grep -v ide-disk $DRIVERS | cut -d/ -f5` ; do
+ hdparm -d0 /dev/$N
+ done
+ fi
+fi
+
+
# Turn on harddisk optimization
# There is only one file /etc/sysconfig/harddisks for all disks
# after installing the hdparm-RPM. If you need different hdparm parameters