The latest core update on PureOS,
vrata@librem:~$ uname -a Linux librem 4.16.0-1-amd64 #1 SMP Debian 4.16.5-1 (2018-04-29) x86_64 GNU/Linux
skips the encryption password at boot time. The boot process attempts to load the boot image (the progress bar appears) but stays frozen with no progress for a 10 to 15 secs or so, then eventually the encryption password input field appears. from then on, everything works as requried.
Is there a boot setting that says how long to try and attempt to read the boot image (from the encrypted disk) before giving up and requesting the encryption password?
I realise this is only the case when my laptop crashes either due to low battery issue or due to a screen freeze which has been happening rather often. Restarting normally loads the encryption password request immediately at boot up. Most likely some settings must be saved properly which are not when the system crashes.