Update content for md

9 files changed, 37 insertions, 16 deletions

diff --git a/gemfeed/2016-04-09-jails-and-zfs-on-freebsd-with-puppet.md b/gemfeed/2016-04-09-jails-and-zfs-on-freebsd-with-puppet.md
index e013c3c9..e21375d1 100644
--- a/gemfeed/2016-04-09-jails-and-zfs-on-freebsd-with-puppet.md
+++ b/gemfeed/2016-04-09-jails-and-zfs-on-freebsd-with-puppet.md
@@ -404,6 +404,6 @@ Other *BSD related posts are:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [Back to the main site](../)  
diff --git a/gemfeed/2022-07-30-lets-encrypt-with-openbsd-and-rex.md b/gemfeed/2022-07-30-lets-encrypt-with-openbsd-and-rex.md
index 17952046..40deb0fc 100644
--- a/gemfeed/2022-07-30-lets-encrypt-with-openbsd-and-rex.md
+++ b/gemfeed/2022-07-30-lets-encrypt-with-openbsd-and-rex.md
@@ -683,6 +683,6 @@ Other *BSD related posts are:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [Back to the main site](../)  
diff --git a/gemfeed/2024-01-13-one-reason-why-i-love-openbsd.md b/gemfeed/2024-01-13-one-reason-why-i-love-openbsd.md
index 0c339e5d..92598532 100644
--- a/gemfeed/2024-01-13-one-reason-why-i-love-openbsd.md
+++ b/gemfeed/2024-01-13-one-reason-why-i-love-openbsd.md
@@ -58,6 +58,6 @@ Other *BSD related posts are:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [Back to the main site](../)  
diff --git a/gemfeed/2024-04-01-KISS-high-availability-with-OpenBSD.md b/gemfeed/2024-04-01-KISS-high-availability-with-OpenBSD.md
index 7d56e460..66e17f82 100644
--- a/gemfeed/2024-04-01-KISS-high-availability-with-OpenBSD.md
+++ b/gemfeed/2024-04-01-KISS-high-availability-with-OpenBSD.md
@@ -309,6 +309,6 @@ Other *BSD and KISS related posts are:
 [2024-04-01 KISS high-availability with OpenBSD (You are currently reading this)](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [Back to the main site](../)  
diff --git a/gemfeed/2024-11-17-f3s-kubernetes-with-freebsd-part-1.md b/gemfeed/2024-11-17-f3s-kubernetes-with-freebsd-part-1.md
index 1314bfcd..230a77d0 100644
--- a/gemfeed/2024-11-17-f3s-kubernetes-with-freebsd-part-1.md
+++ b/gemfeed/2024-11-17-f3s-kubernetes-with-freebsd-part-1.md
@@ -10,7 +10,7 @@ These are all the posts so far:
 
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage (You are currently reading this)](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [![f3s logo](./f3s-kubernetes-with-freebsd-part-1/f3slogo.png "f3s logo")](./f3s-kubernetes-with-freebsd-part-1/f3slogo.png)  
 
@@ -166,7 +166,7 @@ Other *BSD-related posts:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage (You are currently reading this)](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 E-Mail your comments to `paul@nospam.buetow.org` :-)
 
diff --git a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md
index 4844180b..161f4a1a 100644
--- a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md
+++ b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md
@@ -10,7 +10,7 @@ These are all the posts so far:
 
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation (You are currently reading this)](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [![f3s logo](./f3s-kubernetes-with-freebsd-part-1/f3slogo.png "f3s logo")](./f3s-kubernetes-with-freebsd-part-1/f3slogo.png)  
 
@@ -292,7 +292,9 @@ The Beelink S12 Pro with Intel N100 CPUs checks all the boxes for a k3s project:
 
 To ease cable management, I need to get shorter ethernet cables. I will place the tower on my shelf, where most of the cables will be hidden (together with a UPS, which will also be added to the setup).
 
-What will be covered in the next post of this series? Maybe ttttbhyve/Rocky Linux and WireGuard setup as described in part 1 of this series...
+Read the next post of this series:
+
+[f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 Other *BSD-related posts:
 
@@ -303,7 +305,7 @@ Other *BSD-related posts:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation (You are currently reading this)](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 E-Mail your comments to `paul@nospam.buetow.org` :-)
 
diff --git a/gemfeed/DRAFT-f3s-kubernetes-with-freebsd-part-3.md b/gemfeed/2025-02-01-f3s-kubernetes-with-freebsd-part-3.md
index 5e84286a..db891ddb 100644
--- a/gemfeed/DRAFT-f3s-kubernetes-with-freebsd-part-3.md
+++ b/gemfeed/2025-02-01-f3s-kubernetes-with-freebsd-part-3.md
@@ -1,10 +1,12 @@
 # f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts
 
+> Published at 2025-01-30T09:22:06+02:00
+
 This is the third blog post about my f3s series for my self-hosting demands in my home lab. f3s? The "f" stands for FreeBSD, and the "3s" stands for k3s, the Kubernetes distribution we will use on FreeBSD-based physical machines.
 
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts (You are currently reading this)](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [![f3s logo](./f3s-kubernetes-with-freebsd-part-1/f3slogo.png "f3s logo")](./f3s-kubernetes-with-freebsd-part-1/f3slogo.png)  
 
@@ -211,9 +213,9 @@ END APC  : 2025-01-26 14:44:06 +0200
 
 So far, so good. Host `f0` would shut down itself when short on power. But what about the `f1` and `f2` nodes? They aren't connected directly to the UPS and, therefore, wouldn't know that their power is about to be cut off. For this, `apcupsd` running on the `f1` and `f2` nodes can be configured to retrieve UPS information via the network from the `apcupsd` server running on the `f0` node, which is connected directly to the APC via USB.
 
-Of course, this won't work when `f0` is down. In this case, no operational node would be connected to the UPS via USB; therefore, the current power status would not be known. However, I consider this a rare circumstance. Furthermore, in case of an `f0` system crash, sudden power outages on the two other nodes would occur at different times, making real data loss (the main concern here) effectively impossible.
+Of course, this won't work when `f0` is down. In this case, no operational node would be connected to the UPS via USB; therefore, the current power status would not be known. However, I consider this a rare circumstance. Furthermore, in case of an `f0` system crash, sudden power outages on the two other nodes would occur at different times making real data loss (the main concern here) less likely.
 
-And if `f0` is down and `f1` and `f2` receive new data and crash midway, it's likely that a client (e.g., an Android app or another laptop) still has the data stored on it, making data loss recoverable. I'd receive an alert if any of the nodes go down (more on monitoring later in this blog series).
+And if `f0` is down and `f1` and `f2` receive new data and crash midway, it's likely that a client (e.g., an Android app or another laptop) still has the data stored on it, making data recoverable and data loss overall nearly impossible. I'd receive an alert if any of the nodes go down (more on monitoring later in this blog series).
 
 ### Installation on partners
 
@@ -346,7 +348,7 @@ Jan 26 17:36:32 f2 apcupsd[2159]: apcupsd exiting, signal 15
 Jan 26 17:36:32 f2 apcupsd[2159]: apcupsd shutdown succeeded
 ```
 
-All good :-) 
+All good :-) See you in the next post of this series!
 
 Other BSD related posts are:
 
@@ -357,7 +359,7 @@ Other BSD related posts are:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts (You are currently reading this)](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 E-Mail your comments to `paul@nospam.buetow.org` :-)
 
diff --git a/gemfeed/f3s-kubernetes-with-freebsd-part-4.md b/gemfeed/DRAFT-f3s-kubernetes-with-freebsd-part-4.md
index 0b922c41..4fc1bc63 100644
--- a/gemfeed/f3s-kubernetes-with-freebsd-part-4.md
+++ b/gemfeed/DRAFT-f3s-kubernetes-with-freebsd-part-4.md
@@ -4,7 +4,7 @@ This is the thourth blog post about my f3s series for my self-hosting demands in
 
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4 (You are currently reading this)](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 [![f3s logo](./f3s-kubernetes-with-frhyveeebsd-part-1/f3slogo.png "f3s logo")](./f3s-kubernetes-with-frhyveeebsd-part-1/f3slogo.png)  
 
@@ -12,6 +12,7 @@ This is the thourth blog post about my f3s series for my self-hosting demands in
 
 * [⇢ f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4](#f3s-kubernetes-with-freebsd---rocky-linux-bhyve-vms---part-4)
 * [⇢ ⇢ Introduction](#introduction)
+* [⇢ ⇢ Check for `POPCNT` CPU support](#check-for-popcnt-cpu-support)
 * [⇢ ⇢ Basic Bhyve setup](#basic-bhyve-setup)
 * [⇢ ⇢ Rocky Linux VMs](#rocky-linux-vms)
 * [⇢ ⇢ ⇢ ISO download](#iso-download)
@@ -33,6 +34,21 @@ The FreeBSD Bhyve hypervisor is a lightweight, modern hypervisor that enables vi
 
 Bhyve supports running a variety of guest operating systems, including FreeBSD, Linux, and Windows, on hardware platforms that support hardware virtualization extensions (such as Intel VT-x or AMD-V). In our case, we are going to virtualize Rocky Linux, which later on in this series will be used to run k3s.
 
+## Check for `POPCNT` CPU support
+
+POPCNT is a CPU instruction that counts the number of set bits (ones) in a binary number. In terms of CPU virtualization and Bhyve support for the POPCNT instruction is important because  guest operating systems utilize this instruction to perform various tasks more efficiently. If the host CPU supports POPCNT, Bhyve can pass this capability to virtual machines to for better performance. Without POPCNT support, some applications might not run, or they might perform suboptimally in virtualized environments.
+
+To check for `POPCNT` support, I run:
+
+```sh
+paul@f0:~ % dmesg | grep 'Features2=.*POPCNT'
+  Features2=0x7ffafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,SDBG,
+	FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,
+	OSXSAVE,AVX,F16C,RDRAND>
+```
+
+So it's there! All good.
+
 ## Basic Bhyve setup
 
 For the management of the Bhyve VMs, we are using `vm-bhyve`, a tool not part of the FreeBSD operating system but available as a ready-to-use package. It eases VM management and reduces a lot of the overhead. We also install the required package to make Bhyve work with the UEFI firmware.
@@ -256,7 +272,7 @@ Other *BSD-related posts:
 [2024-04-01 KISS high-availability with OpenBSD](./2024-04-01-KISS-high-availability-with-OpenBSD.md)  
 [2024-11-17 f3s: Kubernetes with FreeBSD - Part 1: Setting the stage](./2024-11-17-f3s-kubernetes-with-freebsd-part-1.md)  
 [2024-12-03 f3s: Kubernetes with FreeBSD - Part 2: Hardware and base installation](./2024-12-03-f3s-kubernetes-with-freebsd-part-2.md)  
-[f3s-kubernetes-with f3s: Kubernetes with FreeBSD - Rocky Linux Bhyve VMs - Part 4 (You are currently reading this)](./f3s-kubernetes-with-freebsd-part-4.md)  
+[2025-02-01 f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 
 E-Mail your comments to `paul@nospam.buetow.org` :-)
 
diff --git a/gemfeed/index.md b/gemfeed/index.md
index 1650a18b..fd0b09be 100644
--- a/gemfeed/index.md
+++ b/gemfeed/index.md
@@ -2,6 +2,7 @@
 
 ## To be in the .zone!
 
+[2025-02-01 - f3s: Kubernetes with FreeBSD - Part 3: Protecting from power cuts](./2025-02-01-f3s-kubernetes-with-freebsd-part-3.md)  
 [2025-01-15 - Working with an SRE Interview](./2025-01-15-working-with-an-sre-interview.md)  
 [2025-01-01 - Posts from October to December 2024](./2025-01-01-posts-from-october-to-december-2024.md)  
 [2024-12-15 - Random Helix Themes](./2024-12-15-random-helix-themes.md)