file был установлен:
opkg install file
Package file (5.25-1) installed in root is up to date.
при попытке удаления:
opkg remove file
No packages removed.
Collected errors:
* print_dependents_warning: Package file is depended upon by packages:
* print_dependents_warning: nano
* print_dependents_warning: These might cease to work if package file is removed.
* print_dependents_warning: Force removal of this package with --force-depends.
* print_dependents_warning: Force removal of this package and its dependents
* print_dependents_warning: with --force-removal-of-dependent-packages.
Короче, решил удалением nano, потом file, а потом последовательно установил file и nano. Спасибо за помощь