Hello Everyone The good news is that in my 10+ years using Linux, I am almost certain that I have never had a kernel that would not boot... Last night I ran "yum update" and it pulled in kernel-2.6.32.9-67.fc12.x86_64. When I attempted to boot it, the boot process seemed to complete, but X never started. Since I have never had this problem before, I don't know precisely what information that you need. I am running an NVidia video card, with the proprietary NVidia driver, installed from RPMFusion. After failing to boot kernel-2.6.32.9-67.fc12.x86_64, I can reboot and choose another kernel and it boots just fine. >From /var/log/messages, this is the closest that I can find to anything relevant: Mar 8 03:01:56 localhost kernel: DRHD: handling fault status reg 102 Mar 8 03:01:56 localhost kernel: DMAR:[DMA Read] Request device [03:00.0] fault addr 233038000 Mar 8 03:01:56 localhost kernel: DMAR:[fault reason 01] Present bit in root entry is clear Mar 8 03:01:56 localhost kernel: NVRM: Xid (0003:00): 54, CMDre 00000000 00000000 00000000 00000001 00000001 Mar 8 03:01:56 localhost kernel: DRHD: handling fault status reg 202 Mar 8 03:01:56 localhost kernel: DMAR:[DMA Read] Request device [03:00.0] fault addr 235833000 Mar 8 03:01:56 localhost kernel: DMAR:[fault reason 01] Present bit in root entry is clear Mar 8 03:01:56 localhost kernel: NVRM: Xid (0003:00): 6, PE007e Mar 8 03:01:56 localhost kernel: DRHD: handling fault status reg 302 Mar 8 03:01:56 localhost kernel: NVRM: Xid (0003:00): 6, PE007e Again, I can boot fine from every other kernel. I just can't boot from 2.6.32. If all I need to do is try running without the proprietary NVidia driver, please let me know specifically how to disable that driver the easiest possible way. Translation: so that I can just boot back into an older kernel and continue using the proprietary NVidia driver if I decide to do that. Also, not only have I never had a problem with being able to boot a particular kernel, I have never had any problems with the proprietary NVidia driver. Let me know any additional information that you may need to help me with this issue. Steven P. Ulrick -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines