Lubuntu wont boot after clean install

[linuxakias]

I do a clean install of lubuntu 20.04 amd64 on acer aspire 7720g. After install wont boot. I tried to fix grub from live usb but wasnt fix. Some forums talking about uefi problem. I dont have uefi and fastbooy only bios. When install windows 10 and after lubuntu works fine. So how to fix this problem? Thanks and sorry for my bad english.

[CelticWarrior]

Welcome.


After install wont boot
Please describe what happens / what do you see when trying to boot.

[linuxakias]

Booting from hdd but cant find any os. After boot from network card. I tried to boot from f12 and select hdd but wont boot.

[CelticWarrior]

Is there some error message?

[linuxakias]

No nothing. I tried to install lubuntu 18.04 32 and 64 bit and work fine. But i want the lastest 20.04

[CelticWarrior]

32-bit is almost dead. Just don't.

[linuxakias]

Yes ok but you have any idea to fix the problem?

[CelticWarrior]

Please use Boot Repair (https://help.ubuntu.com/community/Boot-Repair) (2nd option - install from PPA in a live session) . Do NOT click either Recommended Repair or Advance, just use the "Create a Bootinfo summary" feature so we can take a look at it.

[linuxakias]

report here: https://paste.ubuntu.com/p/992wX6dg3p/

[CelticWarrior]

Thanks.

Now try the recommended repair.

[linuxakias]

Nothing changed after repair.