[WLUG] washlug Digest, Vol 19, Issue 2

Sat Apr 4 17:41:58 EDT 2015

Grub gets confused with multiple drives if they switch order due to the
BIOS changing boot priority.  Maybe Yaboot has a similar problem.

Normally I would pass "xforcevesa" and/or "nomodeset" at boot to get around
video driver problems.

https://wiki.ubuntu.com/PowerPCFAQ#What_yaboot_parameters_should_I_use_for_graphics_problems.3F

On Sat, Apr 4, 2015 at 5:08 PM, Dave Coak <dave at davecoakaudio.com> wrote:

> I removed the OS X hard  drive, started up from the LIVE Ubuntu 10.04 disk.
> Then I installed 10.04 selecting-use entire drive, format and partition
> automatically.  Then I selected to update to 12.04.  After installation
> and restart, I got a Yaboot prompt with a Command Line dbus-launch error.
> --close-stderr exited with non-zero exit status 1: Autolaunch error: X11
> initialization failed.\nudev[302]: specified group 'colord' unknown
> The disk drive for / is not ready yet or not  present.
> Continue to wait, or Press S to skip mounting or M for manual
> recovery       then blinking cursor.
> I started up with LIVE 10.04 disk, looked at drive contents and
> partitions.  All were appropriate except that there was no label for
> root partition.
> I named it 'root' and restarted the 12.04 installation.  No different.
> Apparently I was wrong about the video driver being the problem. But
> 12.04 Live would not start up until I removed the OS X hard drive.
> The G5 had been dual booting between Ubuntu and OS X using separate drives.
> Ideas Please
> Dave Coak
>
> On 4/4/2015 12:00 PM, washlug-request at washlug.org wrote:
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> > Today's Topics:
> >
> >     1. Re:  Mac G5 Black Screen after Linux Installs
> >        (alanbenard%40pobox.com)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Sat, 4 Apr 2015 13:06:14 +0000 (UTC)
> > From: "alanbenard%40pobox.com" <alanbenard at comcast.net>
> > Subject: Re: [WLUG] Mac G5 Black Screen after Linux Installs
> > To: "Washtenaw Linux Users Group (WLUG)" <washlug at washlug.org>
> > Message-ID:
> >       <1395052789.23524901.1428152774558.JavaMail.zimbra at comcast.net>
> > Content-Type: text/plain; charset="utf-8"
> >
> >> Ubuntu 12.04 works from the Live CD.
> > This part is fascinating. It also makes be believe that you are not
> actually booting from the hard drive. Something is wrong with the boot
> loader?
> >
> > The troubleshooting steps are super sound. Can't wait to hear the
> results.
> >
> > Alan
> >
> >
> > ----- Original Message -----
> >
> > From: "Josh Budde" <jbudde at med.umich.edu>
> > To: "Washtenaw Linux Users Group (WLUG)" <washlug at washlug.org>
> > Sent: Thursday, April 2, 2015 9:46:11 PM
> > Subject: Re: [WLUG] Mac G5 Black Screen after Linux Installs
> >
> > A couple of things:
> >
> > 1) Are you sure its actually booting after you complete the install? If
> you set a static IP during setup, can you ssh into the machine while the
> screen is blank?
> > 2) If you can?t get into it via SSH (or ping it) while its at the black
> screen, it may be failing to start out of the boot loader. Do you see the
> grub kernel selection/ubuntu splash screen at any stage?
> >
> > If you determine its the video driver crashing, what you?d want to do is
> determine which video driver is loaded by the live cd, mount the Ubuntu
> partition from the LiveCD, then manually configure X org to use the
> specified driver
> >
> > Josh
> >
> >
> >
> >
> > On Apr 2, 2015, at 9:34 PM, Dave Coak < dave at davecoakaudio.com > wrote:
> >
> > I have a MAC PPC dual 2Ghz G5 processor desktop computer. I want
> > it to dual boot into OS X as well as Linux.
> > I have installed Ubuntu 10.04PPC without major problems. An
> > attempt to install Ubuntu 12.04PPC resulted in a black screen on
> > startup, as did Debian 7.8PPC 64 bit, Mint 11PPC 64 bit, and Kubuntu
> > 12.04 PPC 64bit.
> > There is no prompt or blinking cursor at start up that would allow
> > me to enter parameter or mode changes for the ATI 9600 graphics card
> > in my G5.
> > My reading has indicated that the Linux Kernel was changed before
> > Ubuntu 12.04 that disabled the default driver that worked on my machine
> > in Ubuntu 10.04. The Black screen after install is widely discussed
> > with the MAC PPC G5 model with the ATI graphics card (there are driver
> > problems with NVIDIA cards on my model as well). There are some fixes
> > offered, but they require a command line or a start up prompt. Neither
> > of which I have.
> > I would like to have a newer OS installed on my G5, but I don't
> > know how to make it work(my preference is Mint 11PPC 64 bit).
> > Ubuntu 12.04 works from the Live CD. I have also tried Crux PPC 3.0 64
> bit
> > If anyone at WLUG has help and advice with this, please Help
> > Thanks
> > Dave Coak
> > (new member)
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