zfsbootmenu
zfs
zfsbootmenu | zfs | |
---|---|---|
161 | 721 | |
763 | 10,140 | |
2.4% | 0.8% | |
9.2 | 9.7 | |
7 days ago | 6 days ago | |
Shell | C | |
MIT License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
zfsbootmenu
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Bash Debugging
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.
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Pure Bash Bible
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.
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Some preinstalled options/defaults suggestion
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
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ZFSBootMenu how to increase font resolution?
I thought the following was supposed to fix this issue: https://github.com/zbm-dev/zfsbootmenu/commit/84da18e64ebcc0c483e7b2c7d3972f7d91784e63
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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?
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:
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How to keep Ubuntu from creating a dozen /var subdirectories?
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.
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Cloned my root dataset and now it won't boot because NTP daemon can't reach time servers
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.
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Ubuntu 23.04 Desktop's New Installer Set To Ship Without OpenZFS Install Support
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.
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Void Linux and root-on-ZFS question
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.
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When root on ZFS breaks on Arch Linux
* 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
zfs
- OpenZFS 2.2.4 – Linux and FreeBSD – Advanced file system and volume manager
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Ubuntu 24.04 LTS is so buggy you can't install the OS [video]
Be careful if you use ZFS-on-root, make sure not to snapshot bpool or it will brick your system and require a complete reinstall.
https://github.com/openzfs/zfs/issues/13873
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Radxa's SATA HAT makes compact Pi 5 NAS
> The only non-junk PCIe3 option that's even advertised here recently is the overpriced WD Red SN700.
Those WD drives seem to have some real issues, at least with ZFS and btrfs. :(
https://github.com/openzfs/zfs/discussions/14793
- OpenZFS: Fix corruption caused by MMAP flushing problems
- ZFS: Some copied files are still corrupted (chunks replaced by zeros)
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DiskClick: Ever wanted to hear Old Hard drive sounds
IMO the "next fs" is just zfs. They somewhat recently merged RAIDZ expansion feature https://github.com/openzfs/zfs/pull/12225 and make regular improvements. If no file system has what you need today, zfs will probably be the first one to have it "tomorrow," imo.
- OpenZFS bug reports for native encryption
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A data corruption bug in OpenZFS?
https://github.com/openzfs/zfs/issues/15526#issuecomment-181...
> zpool get all tank | grep bclone
> kc3000 bcloneused 442M
> kc3000 bclonesaved 1.42G
> kc3000 bcloneratio 4.30x
> My understanding is this: If the result is 0 for both bcloneused and bclonesaved then it's safe to say that you don't have silent corruption.
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Ask HN: What's your "it's not stupid if it works" story?
A couple years ago, I had an idea for convincing a filesystem to go faster using 2 compression steps instead of one. I couldn't see why it wouldn't work, and I also couldn't convince myself it should.
It seems to have worked out. [1]
[1] - https://github.com/openzfs/zfs/commit/f375b23c026aec00cc9527...
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ZFS Profiling on Arch Linux
https://github.com/openzfs/zfs/issues/7631
This is a long-standing issue with zvols which affects overall system stability, and has no real solution as of yet.
What are some alternatives?
root-on-zfs-systemdboot - Dual-boot Root-on-ZFS config for Debian w/ systemd-boot
zstd - Zstandard - Fast real-time compression algorithm
archiso-zfs - Easily load ZFS kernel module on any Archiso.
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
ramroot - Load root file system to ram during boot.
sanoid - These are policy-driven snapshot management and replication tools which use OpenZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.)
dracut - dracut the event driven initramfs infrastructure
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
zectl - ZFS Boot Environment manager for Linux
snapper - Manage filesystem snapshots and allow undo of system modifications
nonguix
zrepl - One-stop ZFS backup & replication solution