Understanding ZFS Scrubs and Data Integrity
https://klarasystems.com/articles/understanding-zfs-scrubs-and-data-integrity/
#HackerNews #ZFS #Scrubs #DataIntegrity #StorageTech #Filesystems
FreeBSD: Home NAS, part 1 – configuring ZFS mirror (RAID1)
https://rtfm.co.ua/en/freebsd-home-nas-part-1-configuring-zfs-mirror-raid1/
To summarize: I have a mirrored #ZFS pool which crashes both FreeBSD kernel and #OpenZFS when trying to import (both disks and each separately).
The disks are old but fine, no IO errors (I have dd/raw images of both disks), last daily scrubs were fine.
Ideas anyone? @robn perhaps?
Related to my post here: https://forums.freebsd.org/threads/kernel-panic-with-zfs-destroy-on-snapshot.100660/
My #FreeBSD #homeserver died this night. Good, I didn't know what to do with my #sunday.
It's this nasty #ZFS kernel panic which now prevents booting the machine. I'll clone the disks and try to start it as virtual machine. If this really works the machine has faulty hardware.
Michael Dexter
boosted
ZFS encrypted root on Ubuntu 25.10, installed from a fresh USB key works fine following the instructions at
It's a shame they dropped native support from the installer. That was a lot of hoops to jump through.
One thing missing was needing to run
addgroup --system gnome-initial-setup
otherwise gdm3 wasn't coming up. I'm also not sure if swap is working properly, but that doesn't really matter for me.
ZFS encrypted root on Ubuntu 25.10, installed from a fresh USB key works fine following the instructions at
It's a shame they dropped native support from the installer. That was a lot of hoops to jump through.
One thing missing was needing to run
addgroup --system gnome-initial-setup
otherwise gdm3 wasn't coming up. I'm also not sure if swap is working properly, but that doesn't really matter for me.
Stefano Marinelli
boosted
Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟭𝟱 (Valuable News - 2025/12/15) available.
https://vermaden.wordpress.com/2025/12/15/valuable-news-2025-12-15/
Past releases: https://vermaden.wordpress.com/news/
#verblog #vernews #news #bsd #freebsd #openbsd #netbsd #linux #unix #zfs #opnsense #ghostbsd #solaris #vermadenday
Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟭𝟱 (Valuable News - 2025/12/15) available.
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Stefano Marinelli
boosted
Goodbye Linux & Podman, hello FreeBSD & Jails! 
Just migrated my blog (https://blog.hofstede.it) to a fully native BSD stack (where my Gemini Capsule was already living).
Stack (using Bastille VNET Jails):
- Caddy (Ingress, TLS, Reverse-Proxy)
- Nginx Jail (Internal. Static file serving)
- PF
The Cool Part: A Zero-Trust CI/CD pipeline.
My Forgejo runner deploys via restricted rrsync into an air-gapped "transporter" jail, which nullfs mounts the web root.
Security: Source-IP restricted, no interactive shells, no PTY.
The simplicity of files-on-disk beats container abstraction every time.
#BastilleBSD #SelfHosted #SysAdmin #IPv6 #ZFS #FreeBSD #RunBSD
2 media
Michael Dexter
boosted
#TIL that there are no knobs in #NetBSD to configure #ZFS ARC memory consumption.
I started to use ZFS for my disk with backups and digital archives near a month ago, because I didn't want to think about changing sizes of LVM partitions. And my homelab server has only 2 Gb of RAM and some swap 
Whoops. Not a good surprise 
Goodbye Linux & Podman, hello FreeBSD & Jails!
Just migrated my blog (https://blog.hofstede.it) to a fully native BSD stack (where my Gemini Capsule was already living).
Stack (using Bastille VNET Jails):
- Caddy (Ingress, TLS, Reverse-Proxy)
- Nginx Jail (Internal. Static file serving)
- PF
The Cool Part: A Zero-Trust CI/CD pipeline.
My Forgejo runner deploys via restricted rrsync into an air-gapped "transporter" jail, which nullfs mounts the web root.
Security: Source-IP restricted, no interactive shells, no PTY.
The simplicity of files-on-disk beats container abstraction every time.
#BastilleBSD #SelfHosted #SysAdmin #IPv6 #ZFS #FreeBSD #RunBSD
2 media
#TIL that there are no knobs in #NetBSD to configure #ZFS ARC memory consumption.
I started to use ZFS for my disk with backups and digital archives near a month ago, because I didn't want to think about changing sizes of LVM partitions. And my homelab server has only 2 Gb of RAM and some swap
Whoops. Not a good surprise
Joel Michael
boosted
Protecting Audit trail files from tampering/removal even by root: https://blogs.oracle.com/solaris/protecting-oracle-solaris-audit-trail-files-from-tampering-removal-even-by-root #solaris #zfs
Stefano Marinelli
boosted
Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟬𝟴 (Valuable News - 2025/12/08) available.
https://vermaden.wordpress.com/2025/12/08/valuable-news-2025-12-08/
Past releases: https://vermaden.wordpress.com/news/
#verblog #vernews #news #bsd #freebsd #openbsd #netbsd #linux #unix #zfs #opnsense #ghostbsd #solaris #vermadenday
Protecting Audit trail files from tampering/removal even by root: https://blogs.oracle.com/solaris/protecting-oracle-solaris-audit-trail-files-from-tampering-removal-even-by-root #solaris #zfs
Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟬𝟴 (Valuable News - 2025/12/08) available.
https://vermaden.wordpress.com/2025/12/08/valuable-news-2025-12-08/
Past releases: https://vermaden.wordpress.com/news/
#verblog #vernews #news #bsd #freebsd #openbsd #netbsd #linux #unix #zfs #opnsense #ghostbsd #solaris #vermadenday
This morning I converted two setups from "jail in jail" back to jail on VM. They worked well enough, but the advantages probably didn’t justify the changes needed to upgrade to FreeBSD 15.0, so for now they’re back in VMs.
Still, I’m keeping everything ready and I’m not ruling anything out. In the end, it’s just a matter of a ZFS send and receive.
Michael Dexter
boosted
What happens when you boot with multiple zroot?
Can it be fixed without booting from a live disk & without pulling the problem disks?
I wanted to test this scenario after hitting it earlier this week. Please make suggestions given above restrictions.
Stefano Marinelli
boosted
Latest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟭𝟮/𝟬𝟭 (Valuable News - 2025/12/01) available.
https://vermaden.wordpress.com/2025/12/01/valuable-news-2025-12-01/
Past releases: https://vermaden.wordpress.com/news/
#verblog #vernews #news #bsd #freebsd #openbsd #netbsd #linux #unix #zfs #opnsense #ghostbsd #solaris #vermadenday
