a friend and neighbour of mine is just about to move. She already has her new flat available and currently I´m helping her with various things.
My domains among others are TV and IT.
Last Thursday when I was out and about I went to her new location as she wanted me to setup her laptop (HP 15-db0400ng 4PP01EA ) there. Well, I was
thinking there shouldn´t be many problems as the device ran well in her old domicile.
As it turned out there were quite a few few things to attend to.
Her router had already been set up at that point and the WLAN-LED was continuously on. Plus: nothing had changed in the settings.
However when I tried to boot the OS (BodhiLinux) some message said the respective kernel couldn´t be found and therefore no booting was possible…
What How could that happen, I thought…
I finally managed to boot the system by selecting the right boot device with the help of the “F9” button. Now Bodhi booted but there was no internet connection
How could that happen, I thought for the second time…
When I set up her laptop for the first time in November 2019 I had to manually install the driver
rtl8821ce for her built-in WIFI device as it was not natively supported by in the respective Linux-kernel then.
Before doing that I rememeber I had to de-activate SecureBoot in the BIOS (or rather: UEFI) as otherwise the (I guess: unsigned) driver wouldn´t be loaded.
Yes, I know… that was due to the fact that I left WIN10 installed as the laptop came with it per default. But the machine was virtually unusable as WIN10 overwhelmed it in many respects.
So Bodhi to the rescue. As her internal HDD is 1TB in size we opted for dual-boot assigning 500GB to each OS.
As she has never used WIN but only BodhiLinux we could´ve nuked WIN in the first place.
Well, that´s the background.
As it turned out my friend left her laptop quite a while without any connection to a mains outlet, for perhaps a day (or even more?).
I guess the battery should´ve bridged this period of time, but perhaps it´s a bit weak…, I don´t know.
After all the laptop costed “just” 299 euros brand-new. I guess one would have
to accept some compromises at some point…
It turned out that - given the lack of power supply / insufficient power supply- this thing tried to boot from WIN…
… as a consequence even trying to do so (I aborted in due time) set the BIOS settings back as far as SecureBoot is concerned. So suddenly it was “enabled again”, which
of course wouldn´t let the driver for WLAN be integrated at boot.
I finally managed to get everything working again by:
- setting SecureBoot in UEFI to “disabled” again
- manually booting BodhiLinux (pressing “F9” and selecting it) # important to do this manually
- no WIFI by that time of course
- within BodhiLinux: running
efibootmngrwhich gave me the info I needed
- Here I saw the settings regarding boot-order. Of course WIN was first
- I changed the boot order with the command
efibootmgr -o [...]so that BodhiLinux was first
- reboot without any interference on my part
Now everything was in working order again:
- laptop booted “normally”, i.e. BodhiLinux
- internet connection via WiFi automatically established
Actually I´ve got no particular question to ask as I´m glad I finally could get everything working again.
But it took quite a while as didn´t know all those steps by heart any more. It´s been quite a while since I initially set the laptop up.
I just wanted to let those of you know who might encounter a similar scenario. Perhaps it may be of some help to someone.
Well, one question perhaps, after all:
The only thing out of the ordinary regarding usage of the laptop was that it hadn´t been plugged in to a power outlet for a certain period of time.
Can it really be that this circumstance would trigger off some sort reset and result in the unwanted behaviour we´ve experienced
I just want to know your opinion about that in case it might happen in the future again…