Bug#565160: Linux console garbled after experimental grub-pc boot

[Jonathan Nieder]

Robert Millan wrote:

> Would you please try attached patch and regenerate grub.cfg ?
> 
> It can be applied directly to /etc/grub.d/10_linux

I made a small change to output the gfxpayload lines below each
menuentry line.  It’s working great now.  Thanks!

diff --git a/etc/grub.d/10_linux.in b/etc/grub.d/10_linux.in
index e7fd297..5c46de3 100755
--- a/etc/grub.d/10_linux
+++ b/etc/grub.d/10_linux
@@ -63,6 +63,11 @@ linux_entry ()
     title="$(gettext "%s, with Linux %s")"
   fi
   printf "menuentry \"${title}\" ${CLASS} {\n" "${os}" "${version}"
+  if ! grep -qx "CONFIG_FB_VESA=y" /boot/config-${version} 2> /dev/null ; then
+    cat << EOF
+	set gfxpayload=text
+EOF
+  fi
   save_default_entry | sed -e "s/^/\t/"
   if [ -z "${prepare_boot_cache}" ]; then
     prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/")"