Hi guys, I'm trying to extend rootfs on my tp-link wr1043nd to nfs drive. nfs was chosen because internal usb in the router is occupied with a dongle without sd slot.
As far as overlayfs does not support nfs for upperdir, I'm trying to use an image on nfs drive connected to /dev/loop0 and formatted as ext4. I built a custom image with nfs client embedded and hotplug script based on script from here I put corresponding section to /etc/config/fstab:
config mount 'rwm' option device '/dev/mtdblock4' option target '/rwm' config mount 'overlay' # option uuid '0d8790a4-4f6f-4257-826d-fbc151691f97' option device '/dev/loop0' option target '/overlay'
/dev/loop0 connects to the image properly during startup, however it turned out that preinit configures overlayfs before network becomes ready and my hack does not work in preinit time.
Using info from here I put in /etc/rc.local
export PREINIT=1 mount_root
However I see this in messages:
[ 40.552698] block: extroot: cannot find device loop0
So, nither way works.
Any help would be very much appreciated