Changes between Version 51 and Version 52 of VboxApps

Timestamp:

Aug 8, 2013, 5:05:48 AM (11 years ago)

Author:

Christian Beer

Comment:

add some more commands helpful in creating a base image

VboxApps

@@ -317 +317 @@
 Make sure all roles are unselected before continuing.
 
+==== Cleaning the Debian VM ====
+
+First step is to remove non-critical packages that are essential ([https://wiki.debian.org/ReduceDebian source]). For Debian Squeeze 7.1 that are:
+{{{
+acpi acpid busybox eject iamerican ibritish info ispell laptop-detect logrotate manpages net-tools os-prober tasksel traceroute usbutils wamerican
+}}}
+Use aptitude to also remove `linux-headers-*` packages but don't remove `dkms` or `virtualbox-guest-dkms`! Run `apt-get autoremove` after this to get rid of now unused packages. `apt-get autoclean` and `apt-get clean` should remove downloaded archives to free up space.
+
+In order to realy purge all files from previously removed packages this command is helpfull as it purges all configuration files from uninstalled packages:
+{{{
+dpkg --purge `dpkg --get-selections | grep deinstall | cut -f1`
+}}}
+
 ==== Updating Grub ====
 
@@ -351 +364 @@
 1:2345:respawn:/sbin/mingetty --autologin root --noclear tty1
 }}}
+
+==== Disabling periodic fsck ====
+
+This will disable the periodic fsck run that occurs every 30 times the VM is turned on: `tune2fs -c -1 /dev/sda1`.
+
+==== Compact the VDI container ====
+
+To get a better compression ratio you may install and run the '''zerofree''' tool to overwrite all empty space on the VDI with zeros.
+{{{
+apt-get install zerofree
+telinit 1
+{enter root password}
+mount -o remount,ro /dev/sda1
+zerofree -v /dev/sda1
+shutdown -hP 0
+}}}
+
+Now open a terminal on the host System and compact the VDI file:
+{{{
+vboxmanage modifyhd FILENAME.vdi --compact
+}}}