March 2015

drive letters changed?

Leave a Comment / FreeBSD, Open Source / By /

I have no idea when I wrote this. It got saved but never published, until today. I recently had the boot drive at one of my servers change. It’s really a VM on a box, but at least it’s running FreeBSD. To fix it, I got a VNC session going to their server, and was greeted by the prompt: mountroot> ? List of GEMO managed disk devices: ufsid/48ee594bdcbf83e3 ufsid/48dd594bad4c1d6f ufsif/48ee594b514a21e1 ufsid/48ee594b75a0ff85 acd0 ad1s1f […]

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ezjail with freebsd-update

2 Comments / ezjail, FreeBSD, freebsd-update / By /

I wrote this back in July 2013, but never published it. Might as well share it now. Lately, I’ve been moving away from tracking FreeeBSD STABLE and more towards using freebsd-update(8). Today, I’ll be setting up a jail, using ezjail and freebsd-update. ############## NOTE: Please read the comments before you read the article. ############## Installing Installing ezjail is straight forward: Installing the base jail My first attempt at creating a base jail failed:

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Munin

Leave a Comment / Network monitoring / By /

This is an old post I wrote, but never published, back in 2010. I’ve started using Munin for some statistical monitoring. Using the hddtemp_smartctl plugin, I was getting some permission errors. After printing the output of the command, I noticed these in the logs: 2010/03/11-18:30:05 [60845] [ERROR] Command /usr/local/sbin/smartctl -A /dev/ad8 on drive ad8 failed: 256. The plugin needs to have read permission on all monitored devices. smartctl 5.39 2009-12-09 r2995 [FreeBSD 8.0-STABLE

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What I would do differently when upgrading from 9.3 to 10.1

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Last night I upgraded the main jail server in my lab from FreeBSD 9.3 to FreeBSD 10.1. I just started using the term, home lab, after discovering http://www.reddit.com/r/homelab/. That server contains, amongst other things, these jails: my development environment for http://dev.freshports.org/ my in house webserver, which hosts the above mentioned website my svn repo an installation of ElasticSearch and Kibana (ELK) an Nginx for web proxy 21 instances of Bacula for tutorial sessions

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Upgrading from FreeBSD 9.3 to FreeBSD 10.1 using beadm and freebsd-update

Leave a Comment / ansible, beadm, FreeBSD, freebsd-update, Open Source, ZFS / By /

In this post, I will use boot environments to upgrade an existing FreeBSD 9.3 to FreeBSD 10.1, and I will do this from within a chroot. Why? Because I can. You might want to read about my previous attempt and one or two, actually three, things I did to get ready for this. In the following commands, I clone the existing running environment to 10.1-RELEASE, then I mount it to /mnt, chroot into

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system/bootenv/default/var does not contain /var

Leave a Comment / beadm, FreeBSD, Open Source, ZFS / By /

Much like the system/bootenv/default/usr does not contain /usr issue I recently wrote about, I found the same issue with system/bootenv/default/var For this post, I have booted my FreeBSD 9.3 system from mfsBSD thumb drive. I will import the pool, but not mount it. # zpool import -N system I mounted the filesystem in question, and confirm that there is just one ZFS thing mounted: # mount -t zfs system/bootenv/default/var /mnt # mount -t

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Building for new version of system

Leave a Comment / FreeBSD, Open Source, poudriere / By /

I just upgraded from 9.3 to 10.1. I have not yet complete the install. My userland has been upgraded to 10.1 but my apps have not. I have a tmux session sitting like this: [root@slocum:~] # /usr/sbin/freebsd-update install Installing updates… Completing this upgrade requires removing old shared object files. Please rebuild all installed 3rd party software (e.g., programs installed from the ports tree) and then run “/usr/sbin/freebsd-update install” again to finish installing updates.

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Fixing the system/bootenv/default/usr to be mounted

Leave a Comment / beadm, FreeBSD, Open Source, ZFS / By /

My goal is to make an easy way to upgrade with beadm by using the idea found in this post. I had a problem with my first attempt which I solved with the details in this post. boot mfsBSD This tool has very quickly become one of my favorites. I like how easy it is to pop in a USB drive and boot a live version of FreeBSD to do stuff. The import

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now it’s not there, now it is

Leave a Comment / beadm, FreeBSD, Open Source, ZFS / By /

I started trying a Root-on-ZFS upgrade using beadm and quickly encountered an anomaly: no /usr/bin Then, it was there, then it wasn’t. I wasn’t sure of what steps I took to reproduce it. So I went through logs and eventually understood what happened. Let me show you. Here is what I did: # beadm create 10.1-RELEASE # beadm mount 10.1-RELEASE /mnt # mount -t devfs devfs /mnt/dev # chroot /mnt csh: Cannot open

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Modifying a ZFS root system to a beadm layout

Leave a Comment / beadm, FreeBSD, freebsd-update, Open Source / By /

Today I sat down to install some packages on a server I just configured for Ansible and iocage. I failed. My poudriere host runs FreeBSD 9.3 and can build for older version of FreeBSD but not newer versions. Solution: upgrade that host. I will be using beadm to allow me to keep my existing 9.3 and create a new 10.1 on the same host. I will be able to switch between the two

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