From 1a7870889d43585df719156663ccb55b635b17dc Mon Sep 17 00:00:00 2001
From: Mcihael Cote <michael@mikecotetech.com>
Date: Sun, 12 Apr 2026 17:26:30 +0000
Subject: [PATCH] Add changehostname

---
 changehostname | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 changehostname

diff --git a/changehostname b/changehostname
new file mode 100644
index 0000000..b203ef2
--- /dev/null
+++ b/changehostname
@@ -0,0 +1,20 @@
+# set the old hostname and write to ini
+echo "OLD_HOSTNAME=$(hostname)" > ~/pmrename.ini
+# set the new hostname in ini, update as needed
+echo "NEW_HOSTNAME=vm-dev" >> ~/pmrename.ini
+# read variables from ini
+source <(grep = ~/pmrename.ini)
+# edit hostname file
+sed -i.bak "s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi" /etc/hostname
+# edit hosts file
+sed -i.bak "s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi" /etc/hosts
+# edit mailname if it exists
+[ -e "/etc/mailname" ] && sed -i.bak "s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi" /etc/mailname
+# edit main.cf if it exists
+[ -e "/etc/postfix/main.cf" ] && sed -i.bak "s/$OLD_HOSTNAME/$NEW_HOSTNAME/gi" /etc/postfix/main.cf
+# copy config files to new node name
+cp "/var/lib/rrdcached/db/pve2-node/$OLD_HOSTNAME" "/var/lib/rrdcached/db/pve2-node/$NEW_HOSTNAME" -r
+cp "/var/lib/rrdcached/db/pve2-storage/$OLD_HOSTNAME" "/var/lib/rrdcached/db/pve2-storage/$NEW_HOSTNAME" -r
+cp "/var/lib/rrdcached/db/pve2-$OLD_HOSTNAME" "/var/lib/rrdcached/db/pve2-$NEW_HOSTNAME" -r
+# reboot
+reboot now
\ No newline at end of file