Ah, this information is helping! The following options allow me to get to where what should be the login screen appears, but it is black with a purple cursor:
nomodeset or nouveau.modeset=0 >From there I can press Ctrl-Alt-F1 and get to a command prompt. I also tried these commands but neither of them change anything: nouveau.noaccel=1 or nouveau.config=NvMSI=0 Maybe I can try them all together? I don't know. I feel like I am getting closer, though. It is a problem with the Nouveau driver. On Wed, Sep 30, 2015 at 11:26 PM, Herminio Hernandez, Jr. < [email protected]> wrote: > Check this post out > http://powerpcliberation.blogspot.ca/2015/05/jessie-meets-bigmac.html > > It is deal with G5 but I think the Nvidia issue may apply to you. > > On Wed, Sep 30, 2015 at 10:18 PM, <[email protected]> wrote: > >> Dear Roger, >> >> What I would try is appending "single" to the "Linux" option at the >> second stage yaboot prompt. >> >> Peter >> >> >> >> On 30/09/15 07:33 PM, Roger Harkavy wrote: >> >>> I originally posted this on the Debian user forums but I was directed to >>> this mailing list. Hopefully I can give you enough information for some >>> guidance on troubleshooting this. >>> >>> I have an iMac G4 "desk lamp," 512k of RAM, 200 GB HD, I believe the >>> processor is a 7450. I downloaded the Debian Jessie netboot powerpc >>> "mini.iso" image from here and burned it to a CD: >>> >>> >>> http://http.us.debian.org/debian/dists/jessie/main/installer-powerpc/current/images/powerpc/netboot/ >>> >>> Installation seemed to go smoothly, no errors, and I selected MATE as the >>> desktop choice during install. The only other option I selected was the >>> "additional desktop software" (sorry, do not remember the exact text). >>> >>> However, after installation, when it boots, one of the last messages you >>> see is: >>> >>> [FAILED] Failed to start Load Kernel Modules. >>> >>> Last line is something along the lines of: >>> >>> fb: switching to nouveaufb from OFfb NVDA,NVMac >>> >>> And then the text starts dissolving, and the entire screen cycles through >>> different colors. I presume it is sitting at the graphical login prompt >>> but >>> it's not displaying correctly. >>> >>> Based on some Google searches, it seems like I should be able to resolve >>> this by editing /etc/modules using nano from a command prompt but I can't >>> get to that point. After the machine starts cycling through the colors, I >>> press ctrl-alt-F1 through ctrl-alt-F12. If there is a command prompt >>> being >>> offered, I can't see it. >>> >>> I also tried different yaboot options I found in searches that were >>> supposed to avoid using the video driver. Unfortunately these didn't work >>> either, but maybe I'm not choosing the right ones. >>> >>> How do I get the machine to boot straight to a regular text login instead >>> of the X-based one? >>> >>> Also, this machine worked fine running Mac OS X this morning (partition >>> was >>> deleted during the install process), so I don't think it's the hardware. >>> >>> Please let me know what I can do. Thank you in advance for any help you >>> can >>> provide. >>> >>> >> >

