Armbian in Read Only Mode
Hi,
I am currently working on a OLinuxIno A20 limeX system which works in read only mode.
I use the code I developped here: https://github.com/lauhub/debian-to-readonly
I have small problems with armbian evolutions, since it uses, creates and modifies some files in some directories that should not be modified according to this page.
Example of files :
/etc/init.d/armhwinfo (modifies permissions of /etc/logrotate.d/armhwinfo)
/sbin/fake-hwclock (creates /etc/fake-hwclock.data
Better than read only is overlay file system aka "virtual read only". If you use recent kernel:
apt-get install overlayroot
echo 'overlayroot="tmpfs"' >> /etc/overlayroot.conf
reboot
After reboot you can't make any permanent changes unless you use it within:
overlayroot-chroot
Overlay is done (with current settings) to RAM which is very fast but small. You can have overlay on any other device ...
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