[mythtv] hdparm

Robert Dege mythtv-dev@snowman.net
Fri, 13 Dec 2002 09:22:00 -0500 (EST)

I know this isn't a "direct" myth issue, but it's pissing me off cuz I
can't find a solution.

I'm trying to build a dedicated Myth-box.  I got myself the Shuttle SK41G
XPC, and a 100GB WD HD.  I ordered an 80GB, but the reseller was kind
enough to send me a 100GB, while only billing me for the 80 :)

Anyways, I do a RedHat 7.3 install.  After the install, I check hdparm -t
/dev/hda.  I'm only getting 6MB/s,  it's like PIO mode 0!  So I
immediately try to set dma -> 1, and I get an error message saying that
the operation is not permitted.  It defaults back to zero.

I used the Knoppix boot disk, with the same results.... and gentoo.  So
I'm starting to think it's a hardware problem.  So I swap out the HD & use
the Knoppix/gentoo boot disks.  Same hdparm result, dma -> 1 not
permitted.  I also did a bunch of BIOS tweaks/test/reset to defaults/etc
but nothing helped.

I decide to use SiSoft Sandra for additional HD info.  So I install XP,
get SiSoft Sandra up & running.  Device Manager shows XP using UDMA Mode
5, and SiSoft Sandra reports about 40MB/s with sequential read/write.  I
reboot with the knoppix boot CD & am still getting 6MB/s with hdparm -t

wtf is going on??  what am I missing?


So Many Things in Life Would Be Really Funny
.... If They Weren't Happening To Me