From f080eabb3a1ed9c2434e4915a4427e3f0ea4d5ac Mon Sep 17 00:00:00 2001
From: Joshua Tauberer <jt@occams.info>
Date: Sat, 7 Oct 2017 10:11:45 -0400
Subject: [PATCH] run apt-get autoremove after updating system packages

Old kernels can build up and some packages may not be needed anymore.

See https://discourse.mailinabox.email/t/storage-space-decreasing/2525/5.
---
 CHANGELOG.md    | 4 ++++
 setup/system.sh | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59112673..51cc6f50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,10 @@ Mail:
 
 * Updated IMAP/POP cipher list to Mozilla's current mondern recommendation.
 
+Installer:
+
+* We now run `apt-get autoremove` at the start of setup to clear out old packages, especially old kernels that take up a lot of space. On the first run, this step may take a long time.
+
 v0.24 (October 3, 2017)
 -----------------------
 
diff --git a/setup/system.sh b/setup/system.sh
index 254b6be5..1e8550ee 100755
--- a/setup/system.sh
+++ b/setup/system.sh
@@ -96,6 +96,12 @@ echo Updating system packages...
 hide_output apt-get update
 apt_get_quiet upgrade
 
+# Old kernels pile up over time and take up a lot of disk space, and because of Mail-in-a-Box
+# changes there may be other packages that are no longer needed. Clear out anything apt knows
+# is safe to delete.
+
+apt_get_quiet autoremove
+
 # ### Install System Packages
 
 # Install basic utilities.