Thanks Ethan
Moved onto the openHABian main branch, but
OpenHABian option 38 only worked after running the uninstall script,
sudo /opt/zram/zram-config/uninstall.bash
due to a problem with stopping the zram-config.service, as it was not running.
+ echo -n '2022-02-25_12:30:11_CET [openHABian] Updating zram service... '
2022-02-25_12:30:11_CET [openHABian] Updating zram service... + cond_redirect systemctl stop zram-config.service
+ [[ -n '' ]]
+ echo -e '\n\033[90;01m$ systemctl stop zram-config.service \033[39;49;00m'
$ systemctl stop zram-config.service
+ systemctl stop zram-config.service
Failed to stop zram-config.service: Unit zram-config.service not loaded.
+ return 5
+ echo 'FAILED (stop zram)'
FAILED (stop zram)
+ return 1
+ '[' 1 -ne 0 ']'
+ whiptail --msgbox 'There was an error or interruption during the execution of:\n "30 | System Settings"\n\nPlease try again. If the error persists, please read /opt/openhabian/docs/openhabian-DEBUG.md or https://github.com/openhab/openhabian/blob/main/docs/openhabian-DEBUG.md how to proceed.' 14 80
All looks to be good now thanks
openhabian@openhabian:/opt/zram/zram-config $ zramctl
NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT
/dev/zram2 zstd 1G 652K 8K 328K 4 /opt/zram/zram2
/dev/zram1 zstd 750M 508K 6.1K 256K 4 /opt/zram/zram1
/dev/zram0 lzo-rle 1G 4K 87B 4K 4 [SWAP]