This is a set of scripts that generates a bootable image (and/or ISO file), that creates a working minimal installation of FreeBSD.
It is completely loaded into memory.

ISO-IMAGES for 11-series release:

USB memstick images:

Old release archive:

Root password for all images: mfsroot
All images have mfsbsd.autodhcp set - all network cards are configured for DHCP.

The following kernel modules are included in all ISO's:
acpi (preloaded), ahci (preloaded), aesni, crypto, cryptodev, ext2fs, geom_eli, geom_mirror, geom_nopi, ipmi, ntfs, nullfs, opensolaris, smbusi, snp, tmpfs, zfs

The following packages are included in all ISO's:
cpdup, dmidecode, e2fsprogs, ipmitool, nano, rsync, smartmontools, tmux

All distributions containt the zfsinstall script for an easy ZFS-based installation of FreeBSD.
You can easily install ZFS-on-root FreeBSD with this script.
The special edition contains FreeBSD distribution files base.txz and kernel.txz

The mini edition is a stripped-down distribution with the dropbear SSH server and client.



  1. - read hints in the sample configuration files in the conf/ directory,
    - copy these files to files without .sample ending
    - make modifications to suit your needs
  2. If you want any packages installed, copy the .tbz files that should be automatically installed into the packages/ directory
    WARNING: On systems with FreeBSD 9 and lower, your image should not exceed 45MB in total, otherwise kernel panic may occur on boot-time.
  3. Run the make command:
    - to create a bootable image: make BASE=/path/to/distribution
    - to create a bootable ISO: make iso BASE=/path/to/distribution
    - to cleanup: make clean
    - example: make BASE=/cdrom/11.0-RELEASE
Download latest release: 2.3

Github repo:


You can contribute to mfsBSD in more ways:
Martin Matuška <mm at FreeBSD dot org>
My blog
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