[Buildroot] Read only rootfs with writable (aufs) overlay
Alex Hildebrand
alexander.hildebrand at googlemail.com
Mon Feb 19 21:59:34 UTC 2018
So switch_root does not work when used without an initramfs? Tried it directly from my read only rootfs but it does not change the root...
Is this the same with in-kernel overlayfs?
-------- Ursprüngliche Nachricht --------Von: Peter Korsgaard <peter at korsgaard.com> Datum: 19.02.18 22:46 (GMT+01:00) An: Alex Hildebrand <alexander.hildebrand at googlemail.com> Cc: buildroot at buildroot.org Betreff: Re: Read only rootfs with writable (aufs) overlay
>>>>> "Alex" == Alex Hildebrand <alexander.hildebrand at googlemail.com> writes:
> Hi there,
> Does anyone of you have experience with a rootfs with a writable (aufs) overlay?
> I managed to compile aufs and mount a folder combining the read only
> rootfs with a read write data overlay. How to switch the rootfs to
> this mount point? Tried to move the mount point to this folder in the
> inittab, but this fails with "Too many levels of symbolic links"
I don't have any specific experience with aufs (any specific reasons to
not use the in-kernel overlayfs instead), but you would normally need to
setup the overlay in an initramfs and then switch_root to it before
executing init.
--
Bye, Peter Korsgaard
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