Differences

This shows you the differences between two versions of the page.

--- linux64 [2026/09/17 07:48] – [Kernel 7.2.5 boot issues] bengt
+++ linux64 [2026/09/17 09:49] (current) – [ollama in podman for ai] bengt
@@ Line 892: / Line 892: @@
 Configure podman:
   # dnf install nvidia-container-toolkit
-  # nvidia-ctk cdi generate --output=/etc/cdi/nvidia.yaml
+  # nvidia-ctk cdi generate --output=/etc/cdi/nvidia.yaml # Needs to be rerun after nvidia driver updates and when switching hdmi port between cards
   # nvidia-ctk cdi list
   # podman run --rm --security-opt label=disable --device nvidia.com/gpu=1 ubuntu nvidia-smi # Check gpu index to the one you want to use
@@ Line 1306: / Line 1306: @@
 ==== Kernel 7.2.5 boot issues ====
-Increased the number of stored kernels in /etc/dnf/dnf.conf to 5 and set the default to the previous kernel. You will need to switch manually to latest kernel during boot until this is resolved upstead. When fixed use "grubby --set-default-index=0" to restore normal boot behaviour.
+This is the likely issue, root= disappearing from the kernel line triggering auto-detection:
+https://discussion.fedoraproject.org/t/error-at-boot-with-kernel-6-17-12-300-fc43-x86-64/177533
-This is an old ticket that the AI find:
+It also suggested adding the root UUID to the kernel paremeters, the others have it:
-https://bugzilla.redhat.com/show_bug.cgi?id=2350605
+  # grep -E -R 'title|options' /boot/loader/entries/
+  # grubby --update-kernel=/boot/vmlinuz-7.2.5-100.fc43.x86_64 --args="root=UUID=7cbb7c6a-5996-48d4-8378-4ba59e5f1f52 ro rhgb quiet"
+It turns out this is lacking from the new boot entry.
-Then it suggested to use kernel boot option systemd.gpt_auto=0 to fix it.
+Possible permanent fix:
+  # echo "root=UUID=7cbb7c6a-5996-48d4-8378-4ba59e5f1f52 ro rhgb quiet rd.driver.blacklist=nouveau,nova_core modprobe.blacklist=nouveau,nova_core" > /etc/kernel/cmdline
+Or just remove that file and trust modern grubenv kernel-install handling:\
+If /etc/kernel/cmdline does not exist, the installer automatically falls back to reading the kernelopts line straight out of your grubenv file to build new kernel configurations.If /etc/kernel/cmdline does exist, the modern BLS (Boot Loader Specification) standard dictates that it takes absolute priority. The script reads only /etc/kernel/cmdline and completely ignores the grubenv file.
+For ollama to work again:
+  # nvidia-ctk cdi generate --output=/etc/cdi/nvidia.yaml
 ==== Upgrade Fedora ... -> 35 -> 36 -> 37 -> 38 -> 39 -> 40 -> 41 -> 42 -> 43 ====