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_posts/sysadm/2023-09-15-lvm-cheat-sheet.tl

@@ -65,6 +65,11 @@ If RAID1 with integrity LV requires refresh (partial synchronization) due to
 e.g.  device write errors, but both PVs are otherwise available, take the
 following steps to fix it:
 
+* check if integrity layer is present:
+{% highlight bash %}
+# lvs -o+raidintegritymode
+{% endhighlight %}
+
 * remove integrity layer:
 {% highlight bash %}
 # lvconvert --raidintegrity n vgdev/backup

_posts/sysadm/2026-02-08-kernel-non-obvious-options-for-custom-build.tl

@@ -0,0 +1,25 @@
+---
+layout: default
+title: Kernel non-obvious options for custom build
+date: 2026-02-08 17:44 +0100
+tags: kernel
+---
+Option names and configuration symbols based on kernel v6.12.
+
+
+h2. Bluetooth
+
+Sending files over e.g. @blueman@:
+
+* RFCOMM protocol support (@BT_RFCOMM@)
+
+h2. Security hardening
+
+Control flow Enforcement Technology, used when @cet@ USE flag is enabled for
+build toolchain:
+* Indirect Branch Tracking (@X86_KERNEL_IBT@)
+* X86 userspace shadow stack (@X86_USER_SHADOW_STACK@)
+
+h2. Wireguard
+
+* IP: policy routing (@IP_MULTIPLE_TABLES@)