On Wed, Jun 3, 2015 at 11:45 PM, Maciej Żenczykowski <[email protected] > wrote:
> The root file system is an overlay of two filesystems. > > A readonly, compressed, appended to the tail end of the kernel > filesystem with the userspace utilities and default configuration. > and > A readwrite, uncompressed, overlay. This is where all writes end up > (copy on write semantics). > > It's entirely possible for the overlay to be empty if nothing has been > changed. > > > That said it is also possible that your router isn't using the USB key > at all, and all the configuration is sitting in an overlay stored > internally in the router's flash. > > > Edit some configuration file (add a comment), save it, sync, reboot > the router, check if the file is still modified, power off the router, > see if the file shows up on the USB key. > > If not, it's not being used for the root overlay at all. > If so, it's working... > > Thanks Maciej, 1) the output of fdisk and df should be self-explanatory here root@OpenWrt-3:~# fdisk -lu /dev/sda Disk /dev/sda: 14.9 GiB, 16008609792 bytes, 31266816 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xe4c8c953 Device Boot Start End Blocks Id System /dev/sda1 2048 4194304 2096128+ 82 Linux swap / Solaris /dev/sda2 4194305 31266815 13536255+ 83 Linux root@OpenWrt-3:~# df Filesystem 1K-blocks Used Available Use% Mounted on rootfs 13192524 49116 12450212 0% / /dev/root 2560 2560 0 100% /rom tmpfs 14572 584 13988 4% /tmp /dev/sda2 13192524 49116 12450212 0% / tmpfs 512 0 512 0% /dev root@OpenWrt-3:~# 2) since I've started ti use this configuration wit hthe usb I'm able to install many more packages, so indeed the USB key is being used. I'll do a test with another device because I'd rather avoid to play with working ones. Thanks again, Alex
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