I have tried to install Lubuntu 18.04 on an Acer Switch 3 (which allows only EFI boot, has no legacy mode). For more than a week I have not managed to make the system start.
Today I have restarted the tablet after a long time, and very suprisingly, Lubuntu has booted immediately. Then, after a lengthy update, I was asked to restart, and now it does not start anymore. Instead I get the message
Default Boot Device Missing or Boot Failed. Insert Revocery Media and Hit any key Then select 'Boot Manager' to choose a new Boot Device or to Boot Recovery Media
Since the system is there, I would like to boot it nevertheless. Unluckily, I forgot to create a boot media.
So this is my question: Is there any "generic" way to boot the installed system using a usb device? A tool or something that can analyze the disk and reckognize a bootable OS?
Thanks in advance!
this is the link to the boot-repair output:
boot-repair has actually worked. So the problem as such is solved. But the question, technically speaking, is not answered yet. So what should I do with this question? Wait for an answer, that might be interesting in its own right?
here the result of boot-repair, after the repair action. http://paste.ubuntu.com/p/45Xt76hVG8/
boot-repairyou can (temporarily) install it on the Live USB and run it from there. It can run diagnostics and suggest solutions. You can post a link to the diagnostic output in your question so that someone can look at it and help you.