JMicro Problem

Message

DeathWolf · Post by **DeathWolf** » Wed Aug 23, 2006 12:38 pm

I am trying to install Gentoo on one Core2 Duo computer. I downloaded install-x86-minimal-2006.0.iso and made a CD from it. The installation started with loading some packages and mounting the CD devices. But then it reports "!! Could not find CD to boot, something else needed!". After that it prompts for keymap selection. Finally the installation gives the warning "!! The root block device is unspecified or not detected. Please specify a device to boot, or "shell" for a shell". The motherboard is a ASUS P5B. The IDE devices are controlled by the RAID Module and uses JMicro for IDE DVD Rom and IDE Hard Drives. The Problem is that at the bootup from the CD the bootloader doesent get that its an IDE Device. What can i do. Im a newbie to Linux.

davascript · Post by **davascript** » Wed Aug 23, 2006 7:31 pm

Check out this thread it looks liek its a ide controller problem with the motherboard. pay attention to what ceicke has to say.

FantomKnight · Post by **FantomKnight** » Fri Aug 25, 2006 7:38 pm

Look in your BIOS and see if your SATA controller has any options such as Enhanced or Compatiability mode. If it has Compatability mode, change to that. Then, your CD should be recognized.

DeathWolf · Post by **DeathWolf** » Sat Aug 26, 2006 12:33 pm

It does have these options and i tried it the way you described it. It still doesnt work and the only difference is that instead of /dev/sda it now says /dev/hda. Any more ideas

FantomKnight · Post by **FantomKnight** » Mon Aug 28, 2006 4:32 pm

The only way that other people have gotten it to work on the P5B motherboard is to use a USB CD drive.

CompNerd · Post by **CompNerd** » Sun Sep 03, 2006 6:07 pm

Passing all-generic-ide when booting up the Gentoo live cd (2006.1) works.

kernelOfTruth · Post by **kernelOfTruth** » Sun Sep 03, 2006 8:00 pm

@CompNerd:
is there some performance impact with this option? (e.g. pio mode ?)
... for me it unfortunately didn't work

@DeathWolf:

wenn du willst, kannst du ja mal meine livecd ausprobieren, damit dürfte es bei dir mit dem booten klappen
falls nicht, kannst du ja unter diesem thread antworten ... (hab den controller auch)

you could try out my livecd

for jmicron-support with gentoo-sources, try irondog's patch: link to his post

CompNerd · Post by **CompNerd** » Mon Sep 04, 2006 12:06 am

Well, in theory, yes, since it means that you cant take advantage of any controller specific feature. However, there really is no performance loss (or so it seemed to me).