Category: FreeBSD
Anything related to FreeBSD
Citrix Hypervisor 8.0.0 and FreeBSD guests running with UEFI boot firmware
I installed Citrix XenServer 7.2 on a spare server, created a small VM running FreeBSD/amd64 head r347896, and updated the host all the way to XS 7.6. Upgrading to Citrix Hypervisor 8.0.0 requires boot media, and the procedure is pretty painless. I added the XS80E001.zip update and rebooted the host. Neither a license server nor a license […]
Read More → Citrix Hypervisor 8.0.0 and FreeBSD guests running with UEFI boot firmwareParallel ZFS mounting
Parallel mounting of ZFS filesystem was introduced in r344569 and is great for shortening the boot time. The change creates a cosmetic problem, partial ordering of the mounted filesystems. Here’s a shell script coercing the output of df(1) into a comprehensible listing.
Read More → Parallel ZFS mountingGetting Bareos up & running on FreeBSD stable/12
I’m in the process of figuring out if Bareos can replace AMANDA in my shop. What is better than setting up a test server and do as many mistakes as possible before going live?
Read More → Getting Bareos up & running on FreeBSD stable/12Safe Kernel Programming with Rust
The discussion on whether FreeBSD should eventually replace C with Rust, produced a link to “Safe Kernel Programming with Rust“, a degree project in computer science and engineering, written by Johannes Lundberg while at KTH in Sweden. If you aim for printing the PDF file as two-sided, then print the following pages in the following […]
Read More → Safe Kernel Programming with RustUpgrading localbase on 13.0-CURRENT using ports-mgmt/synth
I upgraded base from 12.0-ALPHA9 to 13.0-CURRENT (r339639) on a VM today. While preparing for rebuilding localbase, I wiped clean /var/synth/live_packages/{All,Latest}/*, and cleaned the ccache repo stored in /var/cache/ccache. Trouble arose when I ordered ports-mgmt/synth to rebuild some 116 ports according to a specification stored in a local metaport. DEFAULT_VERSION+=ssl=base was being used at the […]
Read More → Upgrading localbase on 13.0-CURRENT usingports-mgmt/synth
First attempt at running FreeBSD/amd64 12.0-BETA1
I spent the better part of the weekend upgrading my laptop to 12.0-BETA1. Three hickups has been discovered so far.
Read More → First attempt at running FreeBSD/amd64 12.0-BETA1Somewhat improved iperf3 performance on Chelsio T6225-CR
After upgrading to stable/11, r339418, incorporating the recent commits for cxgbe(4) et al. (r339389, and r339393-r339404), I see a somewhat improved iperf3 performance.
Read More → Somewhat improved iperf3 performance on Chelsio T6225-CRiperf3 and Chelsio T6225-CR
I ran four tests yesterday using iperf3. The T6225-CR NIC still runs with Chelsio’s SM10G-SR optics. It’s amazing that receiving TCP streams runs at full speed. Sending TCP streams limps away only at a few megabits per second. This wasn’t expected at all. Even IPv6 runs faster than IPv4 for these particular tests. The Cisco […]
Read More →iperf3 and Chelsio T6225-CR
Chelsio T6225-CR and TOE
After upgrading to a recent base/stable/11, I noticed ifconfig -m now displays two more bits: TOE4 and TOE6 appear in the capabilities word, but not in the options word. (TOE in this case being TCP Offload Engine.)
Read More → Chelsio T6225-CR and TOEChelsio T6225-CR and SM10G-SR
I finally got my two Chelsio SM10G-SR SFP+ optical modules. First light have finally been achieved.
Read More → Chelsio T6225-CR and SM10G-SR