Requirements#

Go#

LXD requires Go 1.18 or higher and is only tested with the Golang compiler.

We recommend having at least 2GB of RAM to allow the build to complete.

Kernel requirements#

The minimum supported kernel version is 5.4.

LXD requires a kernel with support for:

  • Namespaces (pid, net, uts, ipc and mount)

  • Seccomp

  • Native Linux AIO (io_setup(2), etc.)

The following optional features also require extra kernel options:

  • Namespaces (user and cgroup)

  • AppArmor (including Ubuntu patch for mount mediation)

  • Control Groups (blkio, cpuset, devices, memory, pids and net_prio)

  • CRIU (exact details to be found with CRIU upstream)

As well as any other kernel feature required by the LXC version in use.

LXC#

LXD requires LXC 4.0.0 or higher with the following build options:

  • apparmor (if using LXD’s AppArmor support)

  • seccomp

To run recent version of various distributions, including Ubuntu, LXCFS should also be installed.

QEMU#

For virtual machines, QEMU 6.0 or higher is required.

Additional libraries (and development headers)#

LXD uses dqlite for its database, to build and set it up, you can run make deps.

LXD itself also uses a number of (usually packaged) C libraries:

  • libacl1

  • libcap2

  • liblz4 (for dqlite)

  • libuv1 (for dqlite)

  • libsqlite3 >= 3.25.0 (for dqlite)

Make sure you have all these libraries themselves and their development headers (-dev packages) installed.