Hi.
I'm surprised that this issue it has just found. I've met it already in May on my Lenovo E31-70 with Xubuntu 16.04.03. (initially laptop was bought with FreeDOS). I thought the problem was with BIOS which I reflashed about 1 year ago.
Local Lenovo support diverted me - said they can do nothing.
But - I need to recheck it today - after installing new kernel 4.14.08 - looks like the problem is solved. At least I could off Security boot and it survived reboot.
Also I've mentioned laptop tried to boot from external usb disk connected.
Hi.
I'm surprised that this issue it has just found. I've met it already in May on my Lenovo E31-70 with Xubuntu 16.04.03. (initially laptop was bought with FreeDOS). I thought the problem was with BIOS which I reflashed about 1 year ago.
Local Lenovo support diverted me - said they can do nothing.
But - I need to recheck it today - after installing new kernel 4.14.08 - looks like the problem is solved. At least I could off Security boot and it survived reboot.
Also I've mentioned laptop tried to boot from external usb disk connected.