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goranche / raspbian-ua-netinst-ro

An installation of debian that creates a read only system
MIT License
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Occasionally hangs on reboot / shutdown #1

Open goranche opened 8 years ago

goranche commented 8 years ago

it seems /etc and /etc_rw can't be unmounted...

goranche commented 8 years ago

removing /etc from /etc/fstab (sounds weird) works quite nicely, although a boot error is introduced by this, something about seed optimisation, I'm guessing the boot procedure (it's systemd related, so... :unamused: ) tries to create some initial random seed and write it to /etc and that is now readonly, hence the error message...

I personally can live with this... will need to test more

nagualcode commented 8 years ago

I am facing hang on reboot. Is your script already up to date with this 'fix' ? I am ok with 1 boot error. What exactly shoul I do? remove this line from fstab?: mount_unionfs /etc fuse defaults 0 0

goranche commented 8 years ago

ah, yes... I had that error as well... it's caused by the fact that /etc can't be unmounted during shutdown... that's pretty much what I did, yes, I've removed that line from fstab and the appropriate lines from post-install.txt that deal with /etc (11, 14 and 16)...

for my particular case, I needed a few files in /etc to be writeable, so I moved them to /tmp and created a soft symlink in /etc (all this happens in post-install.txt)...

the files I need to be readwrite are hostname (I "calculate" the hostname from the MAC address, this way each board gets a unique hostname, even if the SD cards are the same) and hosts (for sudo to work properly after setting the hostname)... in addition to this, /etc/mtab is replaced with a symbolic symlink to /proc/self/mounts, so the mounts are displayed correctly when issuing the mount command...

I haven't (yet) updated the scripts in this repository, but now that I know that at least one other person is using it, I will... ;)