Tsung-Li Wang

For a quick ask, do you know which kernel driver configuration I have to open?

Did you just installed overlayroot and added tmpfs in the overlayroot.conf ?

I can not switch to Armvian Xenial version cause customer need Ubuntu and kernel build from Yocto. What I know now is that there is some kernel driver configuration that I have to open. After that it is all about Ubuntu 16.04 LTS. And When I test overlayroot on my Ubuntu 16.04 which installed on Oracle VM VirtualBox, It success. So I do the exactly same way on my armbased board but things not going quite well. I think I have to do more research on this. Any way thanks for your help.

Thanks for reply. I had check logs by running below command. dmesg | grep -rIn "overlayfs" * But can not find any failure that relate to overlayfs. I doubt that it did not even execute overlayroot.conf. Any Advice? Thanks in Advanced!

Hi All, I'm using Ubuntu 16.04 as my OS system and i.MX6DL SabreSD as my cpu. I build my linux kernel with Yocto Project. Now I'm trying to protect the root filesystem with Overlayroot. I installed the overlayroot by using apt-get as below. sudo apt-get install overlayroot According some research, its lead me to modify "/etc/overlayroot.conf" to enable overlayroot. So here I tried to add the line at the bottom. overlayroot="tmpfs:swap=1,recurse=0" Then I reboot the system. After that I tried to check if there was any overlayroot mounted with command `mount` when get into system. But there was nothing happened, root filesystem still mounted as RW. Did I miss any steps? Or is overlayroot have any relation with linux kernel driver?