Hi Gary, I'm interested in that too. In my case I want to have a reset-to-factory-defaults-button on my device. The idea was use an readonly filesystem and, on top of it, a read-write filesystem. All modifications goes to top-half, once the RTFD button is pressed the top-half is formated and the system goes back to its instalattion.
I have no ideia about support for that on Yocto, I know of OverlayFS existence only. I think its possible but I don't know really how to do it, also never tried. I'm just fearing that dealing with OverlayFS on rootfs could be a headache. Anyway, take a look on this: https://www.kernel.org/doc/Documentation/filesystems/overlayfs.txt Best regards - dhs 2015-07-16 8:36 GMT-03:00 Gary Thomas <[email protected]>: > I'd like to set up a system with a read-only root file system > along with some persistent read-write storage. What are the > [best] options in Poky/Yocto for this? Is there any support > for some type of overlay file system? > > Thanks for any ideas/pointers > > -- > ------------------------------------------------------------ > Gary Thomas | Consulting for the > MLB Associates | Embedded world > ------------------------------------------------------------ > -- > _______________________________________________ > yocto mailing list > [email protected] > https://lists.yoctoproject.org/listinfo/yocto > -- *"Do or do not. There is no try"* *Yoda Master*
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