Split off setting hostname

hostname.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -euo pipefail
+
+
+printf \
+	"${hostname}\n" | tee /mnt/etc/hostname &> /dev/null
+
+printf \
+	"127.0.1.1\t${hostname}\n" | tee --append /mnt/etc/hosts &> /dev/null

pre-inst.sh

@@ -129,11 +129,7 @@ elif [[ "${ID}" == 'fedora' ]]; then
 	"${baseDir}/fedora.sh" --rsync
 fi
 
-printf \
-	"${hostname}\n" | tee /mnt/etc/hostname &> /dev/null
-
-printf \
-	"127.0.1.1\t${hostname}\n" | tee --append /mnt/etc/hosts &> /dev/null
+"${baseDir}/hostname.sh"
 
 if [[ "${ID}" == 'debian' ]]; then
 	"${baseDir}/debian.sh" --network-interfaces