1.1. System Prerequisites

1.1.1. Machine

The LOCKSS system runs on a 64-bit Linux host (physical or virtual), with at least 4 cores (8 or more preferable), at least 8 GB of memory (16 GB or more preferable) and at least 50 GB of disk space (100 GB or more preferable).

1.1.2. Operating System

The LOCKSS system requires a 64-bit Linux host compatible with Systemd, Snap and MicroK8s.

Flavors of Linux we have tested include:

• CentOS 8.2, 8.1, 8.0, 7.8, 7.6.

  Tip

  CentOS 7 is our recommended OS.

  Caution

  Snap is not available on CentOS 7.5 or earlier; version 7.6 or later is required.

• Debian 10.6, 10.5, 10.4, 10.3, 10.2, 10.1, 10.0, 9.13, 9.12, 9.9, 9.6, 9.5, 9.4, 9.3, 9.2, 9.1, 9.0.

• Linux Mint 20.0, 19.3, 19.2, 19.1, 19.0, 18.3, 18.2.

  Caution

  Snap is not available on Linux Mint 18.1 or earlier; version 18.2 or later is required.

• OpenSUSE Leap 15.2, 15.1, 15.0.

• RHEL 8.2, 7.8.

• Ubuntu 20.04 LTS, 19.10, 19.04, 18.10, 18.04 LTS, 17.10, 17.04, 16.10, 16.04 LTS.

Tip

LOCKSS 2.0-alpha3 can probably be installed successfully on slightly different versions of the operating systems above, for instance CentOS 7.7 or Debian 9.11. Additionally, savvy users will likely succeed at installing LOCKSS 2.0-alpha3 on other Linux flavors.

Caution

We do not recommend Arch Linux or Fedora Linux 32, because MicroK8s 1.18.9, the currently available version in the required 1.18 series, does not seem to work on these platforms as documented. This highlights an inconvenience of the default Snap-only distribution of MicroK8s that we hope to address in 2.0-alpha4.