Advice on installing usbip-server in 18.06.1

I'm new to OpenWRT and I've successfully installed it in a Linksys WRT1900AC (v1) which has two USB ports.
I'm trying to experiment with the USB over IP provided by the usbip-server package, but when I try to install it, it shows a dependency problem with the kernel version:

root@OpenWrt:~# opkg update >/dev/null; opkg install usbip-server; uname -a
Installing usbip-server (2.0-10) to root...
Collected errors:
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for usbip-server:
 * 	kernel (= 4.14.73-1-57915b076d0a209a436caaf133006cd0) * 	kernel (= 4.14.73-1-57915b076d0a209a436caaf133006cd0) * 	kernel (= 4.14.73-1-57915b076d0a209a436caaf133006cd0) * 	kernel (= 4.14.73-1-57915b076d0a209a436caaf133006cd0) *
 * opkg_install_cmd: Cannot install package usbip-server.
Linux OpenWrt 4.14.71 #0 SMP Fri Sep 21 11:25:08 2018 armv7l GNU/Linux

The very last line shows my kernel version 4.14.71, and these packages seem to require 4.14.73-1-57915b076d0a209a436caaf133006cd0). Those are very specific kernel specifications. Can I build the package myself and install it? What would be advised in this situation?


You seem to be using a snapshot.
Snapshot packages only work with installations from the same build, which are redone every few days.

So you can either install a new snapshot and quickly install or copy the packages you need before the next build.


Install from a current release such as 18.06.1 and have long term support.


Thank you!
I should use a stable release.
Will/should my configuration (i.e.: wifi setup, firewall rules, openvpn setup etc.) be preserved or should I backup my files and start over configuring everything?
Thank you again for your help!

In general, "should", yes

sysupgrade -l will confirm what is going to be preserved.

Additional things can be added by editing /etc/sysupgrade.conf

Generally that isn't needed if all you have are "stock" packages and their config files to consider. Still, worth checking in advance!


Thank you for your prompt response. I’m going to try this :slight_smile:

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A backup other than blind trust is always a good idea. It can be done from the command line (sysupgrade with no arguments gives "help"), or through LuCI. I've had my cat pull the plug on a device at the most inopportune time!

It took me a while to have a slot of free time (where I could potentially break my router) and it worked without problems. It took a couple of reboots make cablemodem work again but everything (I caread about) was preserved.
I installed usbip but unfortunately it seems broken in 18.06.1 in my hardware and some people are reporting similar issues, but at least having a long time support firmware will save me time looking for snapshot packages.