Thank you for taking the time to write to us about the problem. These kinds of but reports are very helpful!
OK, I think this is a bug.
It could be. Please report it to
bug-guix@gnu.org. If you have an operating system configuration file that reproduces the problem consistently, please share it in your report. In particular, if you can reproduce the problem using "guix system vm", it will make things much easier for us to debug. The manual describes how to use that command:
The way I worked around it was to:
1) remount /gnu/store rw
2)
cd
/gnu/store/n9ym4yl7s55pm57rnc5whjlzjgvxas32-linux-libre-4.16.2/lib/modules/4.16.2-gnu/kernel/drivers/usb/storage/
cp usb_storage.ko usb-storage.ko
That's good to know, but you should not modify files in the store or mount it rw. It can lead to unpredictable behavior because doing so may violate certain invariants. When hacking around on a throw-away system to investigate an issue like this, don't this might be useful, but on systems you care about, essentially the only way you should interact with the store is via the public Guix scheme APIs and the Guix command line tools, since they will ensure that the store's invariants are never violated.
Again, thank you for the report! I hope everything is smooth sailing from this point on.
--
Chris