I've managed to add the cgroupfs support and the systems doesn't complain when mounting any filesystem. Due to the fact that I have disabled selinux and auditing support I get the following messages : [ 18.770000] Freeing init memory: 152K [ 19.430000] systemd[1]: systemd 8 running in system mode. (+PAM +LIBWRAP -AUDIT -SELINUX) [ 19.470000] systemd[1]: /sbin/modprobe failed with error code 1. [ 19.480000] systemd[1]: No hostname configured. [ 19.490000] systemd[1]: Set hostname to <localhost>. [ 19.500000] systemd[1]: Netlink failure for request 2: Operation not supported [ 19.520000] systemd[1]: Failed to configure loopback device: Operation not supported [ 19.550000] systemd[1]: Failed to create private D-Bus server: Operating system does not support abstract socket namespace [ 19.570000] systemd[1]: Failed to allocate manager object: Input/output error [ 19.590000] systemd-cgroups-agent[672]: Failed to get D-Bus connection: Operating system does not support abstract socket namespace It seems that I have stripped to much of the functionality required for systemd to work when trying to make it lightweight. Should I reconsider some aspects ? Can you point the vital elements ? Best ! <div class="gmail_quote">On Wed, Sep 8, 2010 at 4:41 PM, Kay Sievers <<a href="mailto:kay.sievers@vrfy.org">kay.sievers@vrfy.org</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="im">On Wed, Sep 8, 2010 at 15:39, Cristian Axenie <<a href="mailto:cristian.axenie@gmail.com">cristian.axenie@gmail.com</a>> wrote: > I've managed to rebuild my kernel with the CONFIG_DEVTMPFS activated and now > the problem doesn't reproduces anymore. Now it seems that /sys/fs/cgroup > cannot be mounted. Any other known issues or other kernel config options to > be activated ? </div>You need this patch: <a href="http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=patch;h=676db4af043014e852f67ba0349dae0071bd11f3" target="_blank">http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=patch;h=676db4af043014e852f67ba0349dae0071bd11f3</a> or a brand new kernel that has it. Kay </blockquote></div>