I have linux mint 17.1 running on a laptop which takes forever to boot. To speed up the boot I want to switch to systemd. How can I switch to systemd?
Don't know about mint but on Debian:
apt-get install systemd
This will install the systemd packages but will not configure systemd as your init system.
Configuring for testing To test systemd before switching to it by default, you can add the following boot parameter to the kernel:
This can be done in the grub menu for a single boot - press "e" in the grub menu and add this to the kernel line. For example, depending on the options required for your particular system, it might look something like:
linux /vmlinuz-3.13-1-amd64 root=/dev/mapper/root-root init=/bin/systemd ro quiet
If PID 1 is systemd then your system is running with systemd.
Configuring as default In order to use systemd you should also install systemd-sysv which provides the symlinks links for /sbin/init.
apt-get install systemd-sysv
In order to boot your system with the newly installed systemd, simply reboot.
You would need to install systemd-217 or newer and repoint anything that doen't do it normally to
/etc/lib/sysytemd/...... but seeing as linux mint is ubuntu based it should change most with that install BUT moreover as mint is its own spin off a a 14.04 ubuntu codebase you are likely to have major pointing errors and selinux would be another likely issue.