From 1c9ba85317f637fe913f2585680e128598d7fc9e Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Sun, 16 Aug 2020 21:56:39 -0400
Subject: initrd.sh: improved error handling

---
 src/initrd.sh | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/initrd.sh b/src/initrd.sh
index 3c692f8..5bf19cf 100755
--- a/src/initrd.sh
+++ b/src/initrd.sh
@@ -16,8 +16,14 @@ get_kernel_version()
         (read _ a; echo ${a#linux-image-})
 }
 
+pkgs_file=rootfs/_build/${rootfs:-samizdat}.pkgs.txt
+
+[ -f "$pkgs_file" ] || exit
+
 kernel_version=$(get_kernel_version rootfs/_build/${rootfs:-samizdat}.pkgs.txt)
 
+[ "$kernel_version" ] || exit
+
 debian_initrd=/boot/initrd.img-${kernel_version}
 
 find_deps() {
@@ -40,14 +46,12 @@ rebuild()
     /usr/sbin/mkinitramfs -d "$conf_dir" -o "$initrd" "${kernel_version}" || force_rebuild
 }
 
-[ "$kernel_version" ]
-
 if [ ! -e "$initrd" -o ! -e "$vmlinuz" ]; then
     rebuild
 else
     found=$(find_deps -newer "$initrd" -print -quit)
     if [ "$found" ]; then
-        echo "initrd.sh: rebuild forced: found modified source: $found"
+        echo "initrd.sh: rebuild forced: found modified source: $found" >&2
         rebuild
     fi
 fi
-- 
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