From fd64b84bcc931c4ba432f33d275566abec1132f7 Mon Sep 17 00:00:00 2001
From: OpenGnSys Support Team <soporte-og@soleta.eu>
Date: Tue, 6 Aug 2024 17:26:25 +0200
Subject: postinstall: linux does not allow more than 64 bytes long hostnames

As per:

  $ getconf HOST_NAME_MAX
  64

truncate it to the maximum.
---
 src/utils/postinstall.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/utils/postinstall.py b/src/utils/postinstall.py
index f52ca77..a043ae8 100644
--- a/src/utils/postinstall.py
+++ b/src/utils/postinstall.py
@@ -69,6 +69,10 @@ def set_windows_hostname(disk, partition, name):
 def set_linux_hostname(disk, partition, name):
     logging.info(f'Setting Linux hostname to {name}')
 
+    if len(name) > 64:
+        logging.warning(f'Linux does not permit hostnames that exceed 64 characters. Truncating {name}')
+        name = name[0:64]
+
     device = get_partition_device(disk, partition)
     mountpoint = device.replace('dev', 'mnt')
 
-- 
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