FC6 on a HP DC7700

[Mogens Kjaer]

Erik van Pienbroek wrote:
...
> After booting the computer with the kernel boot option 'acpi=off'
> we succeed to start anaconda. However, the I/O with the hard drive
> (for example formatting) was very slow.

I have set SATA emulation to IDE, and boot with

acpi=off hda=noprobe hdc=noprobe

then the IO speed is OK:

# hdparm -t -T /dev/sda

/dev/sda:
  Timing cached reads:   4460 MB in  2.00 seconds = 2230.11 MB/sec
  Timing buffered disk reads:  208 MB in  3.02 seconds =  68.89 MB/sec

The "hda=noprobe hdc=noprobe" needs to be added manually to grub.conf
after installation.

Mogens

-- 
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
Email: mk at crc.dk Homepage: http://www.crc.dk