If it doesn’t belong anywhere, it belongs here.
I recently discovered that you can delete all snapshot from a ZFS filesystem with a single command. It came to me via fortune: You can delete a range of ZFS snapshots (a-z) in multiple ways. The following will delete d and all earlier snapshots: zfs destroy mypool/data@%d To delete d and all later snapshots: zfs […]
Moving some ZFS filesystems to the ‘trash’ and removing all their snapshots – sanoid Read More »
Today was battery replacement day at my place. The UPS batteries were replaced without downtime. That doesn’t mean there wasn’t downtime. I am not documenting this in real-time. This is post-event analysis. First, I wanted to change the battery replacement date, so I ran acptest on the pfSense server, to which the UPS is connected
Unintended shutdown of the #homelab Read More »
I am replacing one zroot with another because of missing binaries and suspect layout. The existing zroot is an old system predating current zroot layouts. This work is being performed on a test system (that link is not safe for young eyes). In this post: FreeBSD 12.1 mfsBSD 12.1 The failed attempt I tried once,
Renaming and replacing zroot filesystems using mfsBSD Read More »
Last night I was working on a PostgreSQL function which would take a bunch of rows from one table and update rows in another table. This is part of the FreshPorts packages project. When I ran it from the command line, it worked as expected. When I ran it from within a script, the DELETE
Just let me check the docs…. Read More »
If you have a blog, or anything online, I’m sure you have received an email saying: Hey, great article, would you mind linking to my website please? A few days later: hey! did you get my email? Then later still: I know you’re busy…. The one I received today was at first annoying but then
link request spammers – sometimes they help Read More »
This sounds slightly political, and it is. Intentionally so. 1. the capacity to recover quickly from difficulties; toughness. “the often remarkable resilience of so many British institutions” 2. the ability of a substance or object to spring back into shape; elasticity. “nylon is excellent in wearability and resilience” Christophe Pettus recently said: Right up until
Right up until you need it, resilience looks like waste Read More »
2FA has its critics: It’s so unreliable! Phones are so easily hijacked It’s not a lot of added security etc Some of these make assumptions not necessarily in evidence. In this post: FreeBSD 12.1 pam_google_authenticator-1.08 Most of the 2FA I use is time-based one-off passwords (TOTP), as opposed to text messages. These are often 6-digit
Archives are important. When they are public and available for searching, it retains and passes on knowledge. It saves vast amounts of time. Case in point I started the copy-backups-to-tape process today. This appeared on the tape server: Jan 7 19:12:08 r720-01 kernel: (sa0:mps0:0:5:0): 64512-byte tape record bigger than supplied buffer Damn. Do I have
Archives are important to retain and pass on knowledge Read More »
I’m going to implement zfstools on all my ZFS-based hosts today. I first started using this tool in July 2019. In this post: FreeBSD 12.0 and 12.1 zfstools 0.3.6_1 sanoid-2.0.1_2 Local snapshots only I will be using zfstool only for creating local snapshots. If I wanted snapshots for sending to other hosts, I would probably
zfstools & sanoid – snapshots on the local host Read More »
I was setting up my FireTV (seems to be a TV with built-in FireStick functions). I was stuck, waiting for a verification code which never arrived on my phone. I was expecting an incoming text. I was wrong to expect that. I had gotten to the stage of logging in with my Amazon credentials and
Registering FireTV – unable to receive verification code on phone Read More »