On December 13, 2021 3:40:05 PM GMT+01:00, "Beek, Léon van de" <l.v.d.beek@...> wrote:
Dear all,
Currently I have created an image which upon boot mounts my rootfs as readonly in an overlay with my data partition. I set out to change the FS type of my rootfs to something that is actuall read-only like squashfs, however I am getting a kernel panic whenever I boot saying:
"Not syncing: vfs: Unable to mount root fs on unknown-blick(179,2)"
The steps I took to convert to a read-only rootfs:
* Change -fstype in .wks file to squashfs * Changed IMAGE_FSTYPE= "squashfs wic.bz2", in local.conf, however I do not believe this is necessary actually
Did you check that your kernel actually supports squashfs as rootfs? There is a Kconfig option for it IIRC.
Are there steps I am missing? I believe that IMAGE_FEATURE = "read-only-rootfs" should not be necessary as I am mounting the rootfs in an overlay before starting /sbin/init , but I might be wrong.
Since it's an image feature, it's not going to impact anything outside of the image recipe but I don't know exactly what this is doing from memory.
