KASLR disabled: could not find suitable E820 region!
I´ve had many problems installing Ubuntu in VirtualBox. The last one is this:
Can you help me? I hope yes. Ty
Solution 1:
Boot Fix
In order to boot properly in the first place, highlight your Ubuntu option and press e to edit the boot parameters. Manually insert nokaslr
behind quiet splash
and then press F10 to continue booting.
Permanent Fix
Using sudo
powers edit your /etc/default/grub
and add the option nokaslr
to the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nokaslr"
You may have other options besides quiet splash
which you will want to leave in place. Save the file and exit your editor. Then run:
sudo update-grub
Second Option
If inserting nokaslr
above doesn't work, then repeat both sections above but insert kaslr
instead.
TL;DR
KASLR randomizes the layout of Kernel address space making it harder for snooping programs to hack kernel working storage and obtain passwords. It was superceded by KAISER which was superceded KPTI (Kernel Page Table Isolation) for Meltdown and Spectre Security hole violations.
Solution 2:
The error is clear actually, you just need to allocate more memory.
From System menu set enough memory, >1GB and be sure you have enough memory in your base system.
It worked for me.