minor

20230620203156.md

@@ -0,0 +1,11 @@
+## ZBS243 electronic shelf label 
+
+### ref
+- https://github.com/jjwbruijn/OpenEPaperLink
+- https://github.com/atc1441/ZBS_Flasher3
+
+
+## hardware
+1. ESP32 + ≥ 4Mb PSRAM
+    2. ELS ZBS243 as 802.15.4 modem connected to the ESP32
+3. multiple ELSs with flashed firmware

archlinux.md

@@ -15,6 +15,9 @@ journalctl --disk-usage && journalctl --vacuum-size={size}M
 ```
 or prepare the file`/etc/systemd/journald.conf` and this value:`SystemMaxUse=50M`
 
+#### update AUR packages after library change
+`yay -S $(pacman -Qoq /usr/lib/python3.9) --answerclean All`
+
 ## archinstall
 #### preinstalled software
 ```
@@ -55,11 +58,11 @@ sudo mkinitcpio -p linux
 - reboot the system to check if anything is broken
 - add secureboot https://wiki.archlinux.org/title/Unified_Extensible_Firmware_Interface/Secure_Boot#Implementing_Secure_Boot
 - systemd-enroll tpm2
-    - WARNING! do not delete slo0
+    - WARNING! do not delete slot0
     - call `systemd-cryptenroll --tpm2-device=auto --tpm2-with-pin=yes /dev/nvme0n1p2`
     - add to cmdline `rd.luks.options=tpm2-device=auto,tpm2-pin=yes`
     - regenerate unified kernel image `mkinitcpio -p linux`
-    - check `sbctl verify` and resign
+    - check `sbctl verify` and resign `sbctl sign -s/boot/EFI/....`
     - reboot and pray
 - enable pcsc.socket
 

lenovo_L13YOGA_G2_AMD.md

@@ -15,4 +15,70 @@ My own system: https://linux-hardware.org/?probe=6dfbd97685
 1. keyboard backlight https://wiki.archlinux.org/title/Keyboard_backlight#On_GNOME
 2. keyboard FN keys
 3. bluetooth daemon disabled by default
-4. touchscreen not detected - suddenly then it appears - and again gone
+4. touchscreen not detected - suddenly then it appears - and again gone It's a bug: The Touchscreen is labelled as Smartcard, not as something related.
+
+##### fwupdmgr
+there is a security overview, but however:
+```
+fwupdmgr security --show-all
+
+Not enough data was provided by the platform to make an HSI calculation.
+ » https://fwupd.github.io/hsi.html#not-enough-info
+```
+It is mostly a problem for the mainboard vendor. However they need to recompile the UEFI. Some rumours say that this is only possible on amd with ryzen 6000 and onwards.
+```
+dmesg | grep -i -e DMAR -e psp -e IOMMU
+[    0.435340] iommu: Default domain type: Translated 
+[    0.435340] iommu: DMA domain TLB invalidation policy: lazy mode 
+[    0.456937] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
+[    0.456979] pci 0000:00:01.0: Adding to iommu group 0
+[    0.456999] pci 0000:00:02.0: Adding to iommu group 1
+[    0.457006] pci 0000:00:02.1: Adding to iommu group 2
+[    0.457014] pci 0000:00:02.3: Adding to iommu group 3
+[    0.457021] pci 0000:00:02.4: Adding to iommu group 4
+[    0.457028] pci 0000:00:02.6: Adding to iommu group 5
+[    0.457038] pci 0000:00:08.0: Adding to iommu group 6
+[    0.457045] pci 0000:00:08.1: Adding to iommu group 7
+[    0.457055] pci 0000:00:14.0: Adding to iommu group 8
+[    0.457060] pci 0000:00:14.3: Adding to iommu group 8
+[    0.457079] pci 0000:00:18.0: Adding to iommu group 9
+[    0.457086] pci 0000:00:18.1: Adding to iommu group 9
+[    0.457092] pci 0000:00:18.2: Adding to iommu group 9
+[    0.457098] pci 0000:00:18.3: Adding to iommu group 9
+[    0.457104] pci 0000:00:18.4: Adding to iommu group 9
+[    0.457110] pci 0000:00:18.5: Adding to iommu group 9
+[    0.457116] pci 0000:00:18.6: Adding to iommu group 9
+[    0.457122] pci 0000:00:18.7: Adding to iommu group 9
+[    0.457129] pci 0000:01:00.0: Adding to iommu group 10
+[    0.457141] pci 0000:03:00.0: Adding to iommu group 11
+[    0.457149] pci 0000:04:00.0: Adding to iommu group 12
+[    0.457156] pci 0000:06:00.0: Adding to iommu group 13
+[    0.457175] pci 0000:07:00.0: Adding to iommu group 14
+[    0.457183] pci 0000:07:00.1: Adding to iommu group 15
+[    0.457192] pci 0000:07:00.2: Adding to iommu group 16
+[    0.457200] pci 0000:07:00.3: Adding to iommu group 17
+[    0.457207] pci 0000:07:00.4: Adding to iommu group 18
+[    0.457216] pci 0000:07:00.5: Adding to iommu group 19
+[    0.457224] pci 0000:07:00.6: Adding to iommu group 20
+[    0.457232] pci 0000:07:00.7: Adding to iommu group 21
+[    0.458758] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
+[    0.470476] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).
+[    0.505045] AMD-Vi: AMD IOMMUv2 loaded and initialized
+[    0.797460] ccp 0000:07:00.2: psp enabled
+[   13.321751] [drm] add ip block number 3 <psp>
+[   13.370488] [drm] Loading DMUB firmware via PSP: version=0x01010024
+[   13.371020] amdgpu 0000:07:00.0: amdgpu: Will use PSP to load VCN firmware
+[   14.100023] [drm] reserve 0x400000 from 0xf43f800000 for PSP TMR
+[ 4850.068564] [drm] PSP is resuming...
+[ 4850.798318] [drm] reserve 0x400000 from 0xf43f800000 for PSP TMR
+[ 4855.002274] pci 0000:03:00.1: Adding to iommu group 11
+[ 4855.002614] pci 0000:03:00.2: Adding to iommu group 11
+[ 4855.002904] pci 0000:03:00.3: Adding to iommu group 11
+[ 4855.003219] pci 0000:03:00.4: Adding to iommu group 11
+
+dmesg | grep -i ccp
+[    0.786786] ccp 0000:07:00.2: enabling device (0000 -> 0002)
+[    0.787316] ccp 0000:07:00.2: ccp: unable to access the device: you might be running a broken BIOS.
+[    0.797456] ccp 0000:07:00.2: tee enabled
+[    0.797460] ccp 0000:07:00.2: psp enabled
+```

outdoor-things.md

@@ -0,0 +1,6 @@
+## Outdoor
+
+###  emergency tracking aka Personal Locator Beacon PLB
+use the 406MHz MEOSAR service or GPS SAR service
+- ACR ResQLink View  Modell PLB-4XX
+- motorola defy satellite link