initfs: init: add file for base options
Allow an initrd image to include options for init while still allowing
additional options to come from the kernel command line and/or u-boot
environment variables.
This will allow building a netboot image that can specify to run
from RAM while allowing the command line to initiate debug or skip
copying files from the read-write overlay file system.
Signed-off-by: Milton Miller <miltonm@us.ibm.com>
diff --git a/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh b/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh
index c37b3d5..70af93d 100644
--- a/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh
+++ b/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-init.sh
@@ -184,6 +184,7 @@
fsck=$fsckbase$rwfst
fsckopts=-a
optfile=/run/initramfs/init-options
+optbase=/run/initramfs/init-options-base
urlfile=/run/initramfs/init-download-url
update=/run/initramfs/update
@@ -192,9 +193,16 @@
cp /${optfile##*/} $optfile
fi
+if test -e /${optbase##*/}
+then
+ cp /${optbase##*/} $optbase
+else
+ touch $optbase
+fi
+
if test ! -f $optfile
then
- cat /proc/cmdline > $optfile
+ cat /proc/cmdline $optbase > $optfile
get_fw_env_var openbmcinit >> $optfile
get_fw_env_var openbmconce >> $optfile
fi