adding support for dracut

script/post-upgrade.sh

@@ -108,6 +108,25 @@ eselect bzimage set 1
 # Merging defaults configurations
 echo -5 | equo conf update
 
+# Dracut initramfs generation for livecd
+# If you are reading this ..beware! this step should be re-done by Installer post-install, without the options needed to boot from live! (see kernel eclass for reference)
+current_kernel=$(equo match --installed "${kernel_target_pkg}" -q --showslot) #Update it! we may have upgraded
+if equo s --verbose --installed $current_kernel | grep -q " dracut"; then
+
+  #ACCEPT_LICENSE=* equo upgrade # upgrading all. this ensures that minor kernel upgrades don't breaks dracut initramfs generation
+  # Getting Package name and slot from current kernel (e.g. current_kernel=sys-kernel/linux-sabayon:4.7 -> K_SABKERNEL_NAME = linux-sabayon-4.7 )
+  PN=${current_kernel##*/}
+  K_SABKERNEL_NAME="${K_SABKERNEL_NAME:-${PN/${PN/-/}-}}"
+  K_SABKERNEL_NAME="${K_SABKERNEL_NAME/:/-}"
+
+  # Grab kernel version from RELEASE_LEVEL
+  kver=$(cat /etc/kernels/$K_SABKERNEL_NAME*/RELEASE_LEVEL)
+  karch=$(uname -m)
+  echo "Generating dracut for kernel $kver arch $karch"
+  dracut -N -a dmsquash-live -a pollcdrom -o systemd -o systemd-initrd -o systemd-networkd -o dracut-systemd --force --kver=${kver} /boot/initramfs-genkernel-${karch}-${kver}
+
+fi
+
 # Cleanup Perl cruft
 perl-cleaner --ph-clean