citadel/docs/duck/developer.duck

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2020-12-07 17:24:22 -05:00
= Developer Guide
[topic]
@link[guide >index#internals]
== Make Root Filesystem Writable
Sometimes it can be useful to make changes directly to the citadel root filesystem to
experiment with changes or to debug a problem.
First $code(citadel.noverity) must be added to the kernel commandline. After booting with
this command line option verify that dm-verity has been disabled with the $code(dmsetup)
command.
[screen]
# dmsetup status rootfs
0 4194304 linear
If the output displays $code(verity) instead of $code(linear) then dm-verity is enabled
and the disk cannot be safely written to.
Next remount the root filesystem with read-write flag.
[screen]
# mount -oremount,rw,noatime /
== Debugging GNOME startup