Lmst

#kopia

I'm looking at how best to teach my child about backups on their computer.

Initially I want to teach something simple, an external hard drive, and perhaps a version controlled backup system.

Unfortunately this need to be on Windows, but I'd prefer an open source solution.

I've looked at e.g.
https://www.xda-developers.com/best-open-source-backup-options/
And it seems like Kopia might be a good option.

Any input?

#backup
#computer
#kopia

New blog post: S3 Storage At Home With Garage Part 3: In Practice

Where we will run benchmarks and set up a backup system using Kopia. This is part 3 of my garage series.

https://jan.wildeboer.net/2026/01/3-Using-Garage-S3/

Replies to this toot will show up as comments under the blog post.

#SelfHost #S3 #Garage #Kopia @homelab

Today I want to thank the teams and communities behind

- #Forgejo [1]
- #Garage [2]
- #Kopia [3]

for delivering (major) updates of their software (which if course is Open Source) that consistently JustWork™ in my experience, making the update process simple, reliable and, yes, fun! I know how hard that is and I tip my hat to all of you and many other projects that do the same.

[1] https://forgejo.org
[2] https://garagehq.deuxfleurs.fr
[3] https://kopia.io

#SelfHost #SysAdminLife @homelab

Thank you as word cloud in many languages. Source https://www.flickr.com/photos/wwworks/4759535950 by Woodleywonderwork

RE: https://bildung.social/@_DigitalWriter_/115916981003898655

Backups sind digitale Souveränität in der Praxis. Kopiaui bietet eine benutzerfreundliche GUI für das leistungsstarke Kopia-Backup-Tool - plattformübergreifend für Windows, macOS und Linux. Verschlüsselt, dedupliziert und mit voller Kontrolle über deine Daten. Genau so sollten Backup-Lösungen sein: offen, transparent und in deiner Hand.

#FOSS #Backup #DigitaleSouveränität #Linux #OpenSource #Datenschutz #Kopia

@_DigitalWriter_

Hm, #kopia gefällt mir nicht besonders 😑 Für den Einsatz auf allen Plattformen nutze ich seit Kurzem #Backrest. Ein endgültiges Urteil habe ich mir aber noch nicht gebildet. Unter Linux nutze ich #Vorta und #Restic direkt im Terminal.

Hab’ mir dafür ein Tool gebastelt, um mir die Befehle nicht merken zu müssen:

https://rhelp.familie-michels.org

https://github.com/garethgeorge/backrest

https://vorta.borgbase.com

Neuer Blog-Artikel:

Hier mein ausführlicher Artikel zu dem sehr guten Backup-Programm KopiaUI:

https://digital-cleaning.de/index.php/kopiaui-backup-fuer-fortgeschrittene-win-macos-linux/

(Kurzer Boost wäre sehr nett, weil der Artikel etliches an Zeit gekostet hat - muss aber nicht sein :-) ).

#backup #linux #windows #kopia #kopiaui

After two weeks of running #Kopia[1] as backup solution on my Linux and Mac machines at home, I will decommission the samba/timemachine setup I used in the past for backing up my Mac. Kopia is Open Source, fast, reliable and the built-in deduplication saves tons of space on my garage backed S3 storage[2]. And yes, I have extensively tested and verified the restore process :)

[1] https://kopia.io
[2] https://jan.wildeboer.net/2026/01/1-Local-S3-With-Garage/

Screenshot of KopiaUI, showing how it does incremental backups according to schedule that take only a few seconds.

Cảnh báo: Kopia trên Windows đang lưu mật khẩu WebDAV dạng văn bản thô (plaintext), gây rủi ro bảo mật. Dùng rclone với cấu hình mã hóa là giải pháp tạm thời, dù có thể gặp lỗi với CLI.

#Kopia #Windows #WebDAV #Security #Backup #BảoMật #SaoLưu #CôngCụ

https://www.reddit.com/r/selfhosted/comments/1q7bgm7/webdav_backend_on_windows_stores_plaintext/

#Kopia vs #Restic for backups: any recommendations or preferences?

Restic seems more mature (= older). Kopia more performant.

#homelab #selfhosting

So after my all-nighter repairing my Omada Controller database and app corruption, I moved it to a container and now I back up all of my container bind mount locations with #Kopia, a handy cross-platform backup tool. And of course, it also runs in a container.

#linux #Docker #HomeLab #SelfHosting

https://github.com/kopia/kopia

@jwildeboer I’m curious about Kopia’s server mode, wondering if it might be suitable for a “family backup manager” who is responsible for backing up Linux, Mac and Windows computers around the house.

https://kopia.io/docs/features/#optional-server-mode-with-api-support-to-centrally-manage-backups-of-multiple-machines

#kopia #backups #linux

TIL (Today I learned) that on #MacOS it is really easy (and fast) to create read-only filesystem snapshots with `tmutil` in a shell script so that I can make backups with #Kopia using those filesystem snapshots. Note: needs APFS as filesystem. Neat!

Source: https://kopia.discourse.group/t/application-support-directory-no-longer-backed-up-in-macos-sonoma/2335/12

I updated my gist accordingly: https://codeberg.org/jwildeboer/gists/src/branch/main/2025/20251227-Kopia-Garage-Backup-Mac.md

#SelfHost #SysAdminLife @homelab

In KopiaUI, under Policy, I have added the before and after scripts so that they run every time a new backup is done.

$The before script creates an APFS snapshot and mounts it before it informs Kopia to use the read-only snapshot as source for the backup #!/bin/bash # Exit on error set -o errexit # Create the snapshot with tmutil VOLUME_PATH="/System/Volumes/Data" SNAP_DATE=$(/usr/bin/tmutil snapshot "$VOLUME_PATH" | /usr/bin/tail -n1 | /usr/bin/sed s/'Created local snapshot with date: '//) # Create mountpoint for snapshot using the SNAPSHOT_ID from Kopia LOCAL_MOUNTPOINT=/tmp/kopia_snapshot_"$KOPIA_SNAPSHOT_ID" mkdir "$LOCAL_MOUNTPOINT" || true umount "$LOCAL_MOUNTPOINT" || true # Mount the snapshot /sbin/mount -t apfs -o nobrowse,-r,-s="com.apple.TimeMachine.${SNAP_DATE}.local" "$VOLUME_PATH" "$LOCAL_MOUNTPOINT" # Use the directory to backup inside the snapshot and let Kopia do its job echo KOPIA_SNAPSHOT_PATH="$LOCAL_MOUNTPOINT"/"$KOPIA_SOURCE_PATH"$

The after script removes the mountpoint

#!/bin/bash

# Exit on error
set -o errexit

# Unmount the snapshot, delete the mountpoint
LOCAL_MOUNTPOINT=/tmp/kopia_snapshot_"$KOPIA_SNAPSHOT_ID"
umount "$LOCAL_MOUNTPOINT" || true
rm -rf "$LOCAL_MOUNTPOINT" || true

Wanted to migrate my backup from Veam on my Windows PC because it doesn't really work anymore and i'd want something OSS.

Tried #Plakar Wants a github login for plugins, Nope.
Tried #Kopia UI is bad, wants a Known Hosts to connect to SFTP ?

Maybe I should just write my own 🤷

Thanks to @jwildeboer , I shall be mostly playing with #kopia tomorrow.

My dad confused backup with syncing. Now our christmas journey is throwing away hundreds of sync conflic files. The database reads were split many times. It's beyond repair.

Installing #kopia as well as introducing a #saas solution for his payment recipes.

I went out for a few hours with my laptop to see how #Kopia would deal with being unable to connect to my S3 storage backed by #garage in my homelab and confirmed that it happily returned to updating the backups when I arrived back home. Nice :)

#SelfHost #SysAdminLife @homelab

Kopia failing to do incremental backups as I was out with no network connection to my homelab but happily resuming the scheduled incremental backups when I was connected to my home network again.

I have an old nextcloud box that I wanted to repurpose: plug it in a friend's router and do remote daily backups.

I've been using Borg and a friend recommended Kopia. Any recommendations here?

#nextcloud #backup #borgbackup #kopia

Wer ein #snapshot artiges Backup für #Linux sucht, könnte sich #kopia ansehen.
Über Regeln sehr fein granuliert einstellbar.
Es hat mich allerdings jetzt fast eine Woche gekostet, es so zum laufen zu bringen, wie ich es mir gewünscht habe. Aber mit viel #script’en hat alles geklappt.
#deduplication und #kompression, schnell und easy.
Sehr zu empfehlen.

Kopia Project released #Kopia version 0.22.3. https://kopia.io/

Kopia Project released #Kopia version 0.22.2. https://kopia.io/

#kopia

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