sanoid
zfsbootmenu
sanoid | zfsbootmenu | |
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118 | 161 | |
2,882 | 756 | |
- | 1.5% | |
7.1 | 9.2 | |
6 days ago | 11 days ago | |
Perl | Shell | |
GNU General Public License v3.0 only | MIT License |
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sanoid
- ZFS took full backup (send/receive) without snapshots but now what to prevent another full transfer?
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ZFS for Dummies
I’m on the other end of the spectrum. I like knowing the flags and settings I use to create the pools.
For snapshots and replication take a look at sanoid (https://github.com/jimsalterjrs/sanoid).
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Automatic container snapshots? cv4pve or zfs for a small homelab?
I use a combo of PBS and ZFS with Sanoid. The ZFS snapshots are nice because you define it all in a config file with frequent, hourly, daily, weekly, monthly snaps retained however you want. Importantly I use that on the root pool as well as my data pools. With PBS I have a custom retention config and have it backing up VMs and LXCs every couple hours. The PBS dedupe functionality makes it possible to keep full backups going back ages with minimal storage consumption, just the changed blocks. PBS is running inside a VM yes, but it’s storage is on another pool.
- [QUESTION] Dataset level replication
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YSK: You can 'zfs send' over SSH to the cloud
[3] https://github.com/jimsalterjrs/sanoid/
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New to ZFS, what layout to choose for 4x20TB drives?
No, it's written by the developer of Sanoid and Syncoid. The foremost open source ZFS snapshotting tool. He contributes on this sub all the time.
- Python Port of 600 Line Bash Script: rsync-time-machine.py for Rsync Backups
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Some questions about the limitations of ZFS send.
Hi there! Not so much to answer your questions, but are you aware of Sanoid and syncoid? It does backup and remote Sync in the most seamless way. Perhaps this would solve some of your concerns...
- Help me understand zfs send for incremental send AND replication?
- Ask HN: Why isn't BTRFS the default FS in home-oriented Linux distributions?
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
What are some alternatives?
zrepl - One-stop ZFS backup & replication solution
root-on-zfs-systemdboot - Dual-boot Root-on-ZFS config for Debian w/ systemd-boot
zfs-auto-snapshot - ZFS Automatic Snapshot Service for Linux
archiso-zfs - Easily load ZFS kernel module on any Archiso.
znapzend - zfs backup with remote capabilities and mbuffer integration.
ramroot - Load root file system to ram during boot.
zfs_autobackup - ZFS autobackup is used to periodicly backup ZFS filesystems to other locations. Easy to use and very reliable.
dracut - dracut the event driven initramfs infrastructure
zfs - OpenZFS on Linux and FreeBSD
zectl - ZFS Boot Environment manager for Linux
UrBackup - UrBackup - Client/Server Open Source Network Backup for Windows, MacOS and Linux
nonguix