When using the script from this repo, 'udhcpc -i wlan0' would error out
with this:
> Recreating /etc/resolv.conf
> /usr/share/udhcpc/default.script: line 37: /etc/resolv.conf-8352: Read-only file system
> Adding DNS server 192.168.7.1
> /usr/share/udhcpc/default.script: line 41: /etc/resolv.conf-8352: Read-only file system
> mv: can't rename '/etc/resolv.conf-8352': No such file or directory