add fedora kernel notes

active/os_fedora/fedora-server.md

@@ -854,11 +854,12 @@ sudo dnf install -y koji
 
 # Search for the desired kernel version
 koji search build kernel-6.18.3*
+export KERNEL_VERSION=6.18.12
 
 # Create a temporary directory to store the donwloaded kernel packages
 sudo -i
-mkdir /root/kernel-download-6.18.3
-cd /root/kernel-download-6.18.3
+mkdir /tmp/kernel-download-${KERNEL_VERSION}
+cd /tmp/kernel-download-${KERNEL_VERSION}
 
 # Download the kernel packages
 koji download-build --arch=x86_64 kernel-6.18.3-200.fc43

active/os_fedora/fedora.md

@@ -0,0 +1,10 @@
+# Fedora
+
+## Kernel Rescue
+
+1. Check that `/boot` and `/boot/efi` aren't full
+2. `mkdir -p /boot/efi/loader/entries`
+3. `mkdir -p /boot/efi/$(cat /etc/machine-id)`
+4. Check for other missing directories and create as needed
+5. `dracut -f --regenerate-all` to regenerate missing kernels
+6. `dnf reinstall kernel*` to rerun kernel installation scripts