Episode Details

This week on the show, we’ve got some new info on the talks from EuroBSDCon, a look at sharing a single ZFS pool between Linux and BSD, Sandboxing and much more! Stay tuned for your place to B...SD!

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Headlines

EuroBSDcon 2016 Presentation Slides

• Due to circumstances beyond the control of the organizers of EuroBSDCon, there were not recordings of the talks given at the event.
• However, they have collected the slide decks from each of the speakers and assembled them on this page for you
• Also, we have some stuff from MeetBSD already:
• Youtube Playlist
• Not all of the sessions are posted yet, but the rest should appear shortly
• MeetBSD 2016 Trip Report: Domagoj Stolfa ***

Cohabiting FreeBSD and Gentoo Linux on a Common ZFS Volume

• Eric McCorkle, who has contributed ZFS support to the FreeBSD EFI boot-loader code has posted an in-depth look at how he’s setup dual-boot with FreeBSD and Gentoo on the same ZFS volume.
• He starts by giving us some background on how the layout is done. First up, GRUB is used as the boot-loader, allowing boot of both Linux and BSD

• The next non-typical thing was using /etc/fstab to manage mount-points, instead of the typical ‘zfs mount’ usage, (apart from /home datasets)

• data/home is mounted to /home, with all of its child datasets using the ZFS mountpoint system

• data/freebsd and its child datasets house the FreeBSD system, and all have their mountpoints set to legacy

• data/gentoo and its child datasets house the Gentoo system, and have their mountpoints set to legacy as well

• So, how did he set this up? He helpfully provides an overview of the steps:

  • Use the FreeBSD installer to create the GPT and ZFS pool
  • Install and configure FreeBSD, with the native FreeBSD boot loader
  • Boot into FreeBSD, create the Gentoo Linux datasets, install GRUB
  • Boot into the Gentoo Linux installer, install Gentoo
  • Boot into Gentoo, finish any configuration tasks

• The rest of the article walks us through the individual commands that make up each of those steps, as well as how to craft a GRUB config file capable of booting both systems.

• Personally, since we are using EFI, I would have installed rEFInd, and chain-loaded each systems EFI boot code from there, allowing the use of the BSD loader, but to each their own!

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HardenedBSD introduces Safestack into base

• HardenedBSD has integrated SafeStack into its base system and ports tree
• SafeStack is part of the Code Pointer Integrity (CPI) project within clang.
• “SafeStack is an instrumentation pass that protects programs against attacks based on stack buffer overflows, w