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I'm trying to build a read only version of raspbian using overlayfs, the kernel version my raspberry pi is running apparently doesn't include it i'm wondering how i can recompile my own kernel with overlayfs …

I know that I can enable/disable OverlayFS from the raspi-config, but do I do this from the terminal? Via a bash script for example. …

After updating to bookworm enabling overlayfs via raspi-config seems to have changed its behaviour. …

TL;DR: This doesn't work in bookworm, so if you have this problem ditch it and go back to bullseye where overlayfs 'just works'. Only read on if you want your eyes to bleed. … What points to the new initrd with overlayfs capabilities? …

raspi-config has the ability to enable the Overlay File System so that no changes are saved to the SD card. That is fantastic, but it seems the changes are saved in RAM. The problem is, when the Pi …

I'd like to use it to easily control OverlayFS for example. Is this possible with Ubuntu on RPi 4? …

/etc/fstab mounts the boot partition to defaults, overlayfs does not seem enable (or I did not manage to see it) Even when I use the raspi-config tool, it changes the files but when rebooting, changes …

There are mainly two union filesystems: overlayfs and aufs. Both have the same basic model. The following is a dramatic simplification: Filesystems are stacked vertically. … I prefer to use overlayfs because it is simple and part of the kernel. We only have to activate it. There are several scripts and HowTos on the web to do that but I prefer overlayroot. …

Not tested this but have used a similar method to add overlayfs modules and a custom scripts to the the initramfs to enable RO operation. …

You might be better off using OverlayFS, as suggested, the support of which apparently is already included. …

Overlayfs just doesn't seem to work at all, despite assurances to the contrary that "what we have already had been tested and works" in this github post. …

After much hacking and googling on this: raspi-config adds overlayroot=tmpfs in cmdline.txt to switch the overlayfs on. …

It then removes /new_root creates an empty tmpfs partition (a partition that only lives in RAM) mounts an OverlayFS partition under the name /new_root OverlayFS lets you create a overlayed stack of …

According to this Source: Kernel version 3.18 and later, have the OverlayFS already on it. However if you want to compile the kernel on your own following the aforementioned Source link. …

I could not use overlayfs because of the need to regularly switch to rw mode to store some things persistently. I used the same technique as the originals poster. …