zfs-auto-snapshot
zfsbootmenu
zfs-auto-snapshot | zfsbootmenu | |
---|---|---|
17 | 161 | |
824 | 763 | |
0.5% | 2.4% | |
0.0 | 9.2 | |
about 2 months ago | 8 days ago | |
Shell | Shell | |
GNU General Public License v3.0 only | MIT License |
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.
zfs-auto-snapshot
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Automatic container snapshots? cv4pve or zfs for a small homelab?
From my research, I can see two options: - Proxmox specific cv4pve-autosnap - generic zfs-auto-snapshot, available in repos
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Some Proxmox Backup, Snapshot and Storage questions
Since Proxmox natively supports ZFS, you could that to make your snapshots. You can do automatic snapshots with zfs-auto-snapshot or for VMs with cv4pve-autosnap.
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zfs hourly snapshot - snapshot naming interpretation needed
If you're using zfs-auto-snapshot (and it looks like you are), note that the timestamps are always in UTC, not your local timezone. Is your timezone somewhere around UTC-12:00?
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Install with zfs via chroot
$ edescribe zfs net-analyzer/munin-plugins-zfs::gentoo A Munin plugin for monitoring ZFS on Linux (https://github.com/alexclear/ZoL-munin-plugin) sec-keys/openpgp-keys-openzfs::gentoo OpenPGP keys used to sign OpenZFS releases (https://openzfs.github.io/openzfs-docs/) sec-policy/selinux-zfs::gentoo SELinux policy for zfs (https://openzfs.github.io/openzfs-docs/) sys-fs/zfs::gentoo Userland utilities for ZFS Linux kernel module (https://github.com/openzfs/zfs) sys-fs/zfs-auto-snapshot::gentoo ZFS Automatic Snapshot Service for Linux (https://github.com/zfsonlinux/zfs-auto-snapshot) sys-fs/zfs-kmod::gentoo Linux ZFS kernel module for sys-fs/zfs (https://github.com/openzfs/zfs) sys-boot/zfsbootmenu::guru ZFS bootloader for root-on-ZFS systems (https://zfsbootmenu.org)
- Syncthing, Backup & ignoreDeletes
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How to use Cron command to create zfs snapshots every hour with naming the time?
You may want to skip trying to manage these manually and use something like this: https://github.com/zfsonlinux/zfs-auto-snapshot
- ZFS Automatic Snapshot Service for Linux
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$ rm Important.txt (uh oh)
Not every operation, but it's easily automated. https://github.com/zfsonlinux/zfs-auto-snapshot
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Maybe a very uncommon use for sanoid: setup for snapshots 2 daily
zfs-auto-snapshot is as simple as it comes. It has cron jobs that show you how to take periodic snapshots. It cleans up its old versions.
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Snapshots and replication with zfs hold and zfs release
Another option to look at (again, 3rd part stuff, not vanilla zfs hold/release stuff) is zfs-auto-snapshot which takes (and retains) n snapshots based on how you run it. See: https://github.com/zfsonlinux/zfs-auto-snapshot
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?
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.)
root-on-zfs-systemdboot - Dual-boot Root-on-ZFS config for Debian w/ systemd-boot
zfs_autobackup - ZFS autobackup is used to periodicly backup ZFS filesystems to other locations. Easy to use and very reliable.
archiso-zfs - Easily load ZFS kernel module on any Archiso.
zfsbud - ZFS snapshotting, replicating & backup rotating convenience bash script
ramroot - Load root file system to ram during boot.
zfsnap - A portable, performant script to make rolling ZFS snapshots easy. (https://github.com/zfsnap/zfsnap/issues/109)
dracut - dracut the event driven initramfs infrastructure
znapzend - zfs backup with remote capabilities and mbuffer integration.
zectl - ZFS Boot Environment manager for Linux
zfs - OpenZFS on Linux and FreeBSD
nonguix