[archiso] Rename root-image to airootfs

Two purposes:
 * systemd filename friendly: "-" is used for "/" and must be escaped with "\x20"
 * ISO9660 filename friendly: "-" is replaced with "_"

1 files changed, 1 insertions, 0 deletions

diff --git a/configs/releng/airootfs/etc/hostname b/configs/releng/airootfs/etc/hostname
new file mode 100644
index 0000000..2dbe21e
--- /dev/null
+++ b/configs/releng/airootfs/etc/hostname
@@ -0,0 +1 @@
+archiso