How to keep opkg update permanently?

Installing and Using OpenWrt
#1

Yesterday ,i have execute the command:

opkg update

Today, i have to install install some packages with opkg install,it says that can't find it.

opkg install coreutils-nohup
Unknown package 'coreutils-nohup'.
Collected errors:
 * opkg_install_cmd: Cannot install package coreutils-nohup.

So i re-update and install packages.

How to keep opkg update permanently?

#2

the opkg package list isn't saved in flash. so it's permanent until next reboot.

#3

The opkg package list isn't saved in flash by default , can it be forced to be saved in specified disk?

#4

you could try /etc/opkg.conf

#5 
root@OpenWrt:~# df /var
Filesystem           1K-blocks      Used Available Use% Mounted on
tmpfs                  3932384      2908   3929476   0% /tmp

I want to mount /var on /.

root@OpenWrt:~#vim /etc/opkg.conf
dest root /
dest ram /tmp
dest /var  /
lists_dir ext /var/opkg-lists
option overlay_root /overlay
option check_signature

Reboot my router , the /var is still mounted on /tmp.

#6

You don't mount the /var to / in opkg. Leave /var where it is and change the lists_dir to e.g /root

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#7

Keeping the downloaded package lists in a permanent location doesn't really make sense. Packages are constantly rebuilt and updated, so the package lists will get out of sync (at least-) ~daily. While that doesn't mean every installable package changes within that time frame, you still need to update in order to find out.

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