Zfsbootmenu Alternatives

zfsbootmenu reviews and mentions

• Bash Debugging
  7 projects | news.ycombinator.com | 1 Mar 2024

  We use a couple nice home-grown functions in ZFSBootMenu to help debug things. We have a zdebug logging function that's peppered liberally throughout the code base - https://github.com/zbm-dev/zfsbootmenu/blob/master/zfsbootme...

  Hitting ctrl-t on our main menu will, when booting with debug logging enabled, show a screen like this: https://imgur.com/Ge75zkP

  We also have a flamegraph profiling mechanism that can be enabled with https://github.com/zbm-dev/zfsbootmenu/blob/master/zfsbootme... . That will dump data to a serial port, which when re-assembled, can be used to produce a graph like https://raw.githubusercontent.com/zbm-dev/zfsbootmenu/master...

  Bash is suprisingly flexible.

• Pure Bash Bible
  13 projects | news.ycombinator.com | 8 Aug 2023

  A lot of what's in the Pure Bash Bible is horrifically slow. Many of those things are substantially faster, even when paying the cost of starting a new process, when you use an external and commonly available tool. I wrote a bash performance profiler that outputs data in a format that flamegraph.pl recognizes - it really helped identify where we could improve the performance of ZFSBootMenu.

  https://github.com/zbm-dev/zfsbootmenu/releases/tag/v1.12.0

  Don't fall in the trap of thinking things have to be written entirely in bash; it's okay to use other tools to help fill in the gaps.

• Some preinstalled options/defaults suggestion
  1 project | /r/openSUSE | 24 Jun 2023

  If instead of "opensuse" you're asking for bootloader as grub can't boot from zfs, then, like i metnioned, i don't use grub2, i uninstalled it, instead i'm using https://github.com/zbm-dev/zfsbootmenu

• ZFSBootMenu how to increase font resolution?
  1 project | /r/zfs | 11 Jun 2023

  I thought the following was supposed to fix this issue: https://github.com/zbm-dev/zfsbootmenu/commit/84da18e64ebcc0c483e7b2c7d3972f7d91784e63

• How do I configure the refind.conf and refind_linux.conf (and or config.yaml (for ZFSBootMenu)) files properly when installing Arch Linux with ZFS Native Encryption?
  4 projects | /r/zfs | 29 May 2023

  All release assets, including EFI executables and kernel/initramfs pairs, are signed with signify, which provides a simple method for verifying that the contents of the file are as this project intended. Once you've installed signify (that's left as an exercise, although Void Linux provides the signify package for this purpose), just download the desired assets from the ZFSBootMenu release page, download the file sha256.sig alongside it, and run:

• How to keep Ubuntu from creating a dozen /var subdirectories?
  2 projects | /r/zfs | 8 May 2023

  I think the consensus is that you probably shouldn't be installing a ZFS on root using the native installer anymore. They aren't really maintaining the packages that make that work. Instead the suggestion is to go the zfsbootmenu route of installing.

• Cloned my root dataset and now it won't boot because NTP daemon can't reach time servers
  1 project | /r/zfs | 5 May 2023

  Glad to hear that everything is working for you! I've opened a PR that adds a warning about this condition - it should likely make it into 2.2.0.

• Ubuntu 23.04 Desktop's New Installer Set To Ship Without OpenZFS Install Support
  5 projects | /r/zfs | 17 Apr 2023

  You can install following instructions at https://openzfs.github.io/openzfs-docs/Getting%20Started/Debian/Debian%20Bullseye%20Root%20on%20ZFS.html which I've automated with https://github.com/HankB/Linux_ZFS_Root/tree/master/Debian. For scripting, you should also look at https://github.com/zbm-dev/zfsbootmenu. I'd probably go that way if I were starting from scratch.

• Void Linux and root-on-ZFS question
  2 projects | /r/voidlinux | 16 Apr 2023

  ZBM provides an amazingly useful script in it's wiki here. This runs when a new kernel is updated by xbps and it snapshots your system before the kernel is installed. This creates a boot environment, and via the magic of ZFS boot environments, allows you to rollback any kernel update to a known, working configuration.

• When root on ZFS breaks on Arch Linux
  5 projects | news.ycombinator.com | 26 Mar 2023

  * https://docs.oracle.com/cd/E86824_01/html/E54764/beadm-1m.ht...

  > A ZFS boot environment is a bootable clone of the datasets needed to boot the operating system. Creating a BE before performing an upgrade provides a low-cost safeguard: if there is a problem with the update, the system can be rebooted back to the point in time before the upgrade.

  * https://klarasystems.com/articles/managing-boot-environments...

  Or perhaps:

  > In essence, ZFSBootMenu is a small, self-contained Linux system that knows how to find other Linux kernels and initramfs images within ZFS filesystems. When a suitable kernel and initramfs are identified (either through an automatic process or direct user selection), ZFSBootMenu launches that kernel using the kexec command.

  * https://github.com/zbm-dev/zfsbootmenu

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