RPi Zero Update guide

[templehasfallen]

Created a guide detailing a workaround for updating Zigbee2MQTT out-of-place when using a RPi Zero, 2, W using chroot and qemu.
This is in the likely case of users running into OOM issues on their Pi.

[Koenkk]

I'm wondering if pnpm will fix this, can you try:

npm install -g pnpm
pnpm install

[templehasfallen]

I'm wondering if pnpm will fix this, can you try:

npm install -g pnpm
pnpm install

Sadly this also errors out due to OOM related errors.

 WARN  GET https://registry.npmjs.org/is-stream error (EAI_AGAIN). Will retry in 10 seconds. 2 retries left.
 WARN  GET https://registry.npmjs.org/async error (EAI_AGAIN). Will retry in 10 seconds. 2 retries left.
Progress: resolved 520, reused 0, downloaded 484, added 0

<--- Last few GCs --->

[2901:0x47058a0]   198301 ms: Mark-Compact (reduce) 124.2 (129.2) -> 122.7 (128.6) MB, 317.22 / 0.00 ms  (average mu = 0.222, current mu = 0.162) allocation failure; scavenge might not succeed
[2901:0x47058a0]   199194 ms: Mark-Compact (reduce) 123.6 (128.9) -> 123.2 (128.4) MB, 745.23 / 0.17 ms  (average mu = 0.189, current mu = 0.166) allocation failure; scavenge might not succeed


<--- JS stacktrace --->

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
----- Native stack trace -----

Aborted

I also tried setting export NODE_OPTIONS="--max-old-space-size=256" or 512, in which case it completed, but the service just kept starting/restarting without any specific errors.

[Koenkk]

What if you configure the Pi to have a swap file? https://forums.raspberrypi.com/viewtopic.php?t=369538

[templehasfallen]

What if you configure the Pi to have a swap file? https://forums.raspberrypi.com/viewtopic.php?t=369538

I went to do that but apparently already did that a while ago (I have 2G swap). This may also explain why my npm ci didn't directly fail and was still running after ~12 hours without any change.

[Koenkk]

I wonder if it would be easier to grab to dependencies from the Docker image. Since this is quite complicated and needs to be done after every update of z2m.

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