On Saturday 01 March 2003 11:43 pm, Mark wrote:
> I am having problems with what looks like scsi emu probs, I am using
> mandrake 9 and a Duron 1.3g .. the problem is I have a LG 48x16x48 cdr
> drive no matter what i try I can not burn quicker than 8x with out
> having problem like
>
Mandrake is turning dma off by default on optical drives. have a look at this
section of /etc/rc.sysinit
# Turn off DMA on CD-ROMs. It more often than not causes problems.
if [ -x /sbin/hdparm -a -e /proc/ide ]; then
for N in `grep -v ide-disk /proc/ide/*/*/driver 2>/dev/null | awk -F / '{
print $5 }'`; do
hdparm -q -d0 /dev/$N >/dev/null 2>&1
done
fi
Now, the next section is really interesting because it tells you how to turn
it back on.
# 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
# for each of your disks, copy /etc/sysconfig/harddisks to
# /etc/sysconfig/harddiskhda (hdb, hdc...) and modify it.
# Each disk which has no special parameters will use the defaults.
# Each non-disk which has no special parameters will be ignored.
Hope this helps.
--
Greg
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