build-vm, tar2fs: handle multiple kernels either

This was crucial for e2k rescue image supporting
multiple CPU versions but can be useful elsewhere.

bin/tar2fs

@@ -227,10 +227,12 @@ esac
 # NB: don't stick BOOTFS here, it has slightly different semantics
 pushd $ROOTFS/boot
 if [ -s .origver ]; then
-	read KVER < .origver
+	while read kver; do
+		chroot "$ROOTFS" make-initrd -k "$kver"
+	done < .origver
+else
+	fatal "unable to deduce kernel version"
 fi
-[ -n "$KVER" ] || fatal "unable to deduce kernel version"
-chroot "$ROOTFS" make-initrd -k "$KVER"
 rm -f .origver
 
 # ...target device too

features.in/build-vm/image-scripts.d/07-kernel

@@ -5,7 +5,6 @@
 kver="$(rpm -qa 'kernel-image*' \
             --qf '%{installtime} %{version}-%{name}-%{release}\n' \
         | sort -n \
-        | tail -n 1 \
         | cut -f 2 -d ' ' \
         | sed 's/kernel-image-//')"