Quite out of space on mango GL-MT300N-V2

I own a mango GL-MT300N-V2. I’ve installed File Sharing (from applications) and ttyd and ttyd-luci (from plugins).
Now in the GUI I read: Free space: 6% (0 MB).
Should I be worry? Is it dangerous to have a so small free space? Or temp files are written in a different partition from the one which is quite out of space?
Thank you in advance for your reply.

Yes it is dangerous to have no space. When you reboot, system cannot be mounted and it will seems everything is lost.

So pls use exroot to install system on USB disk

I would be interested in that too, how does ex(t)root work on the GL routers. What is necessary, is there a description?

You can search the forum

The long story:

The short one:
First reset the router so that you have more space.

  1. Use a USB disk, format as ext4
  2. plugin the USB disk to the router
  3. Install luci, go to luci and change the mount point /overlay to your USB
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I don’t mean to hijack this thread, but one big use of memory in the Mango is the macvendor.db file at 1 meg. A different approach from extroot would be to shrink this file, which would create a lot more room. I have not been able to get imagebuilder to substitute a shrunken .db file–it keeps recreating the file.

I confirm.
I unplugged the router and when I plugged it again it restarted at factory settings.

That is because the system cannot be mounted because flash is full.

So just reset the router once to fix it.