Cannot install Ubuntu on Acer Aspire One 756 (Intel Dual Core 847, 2 GB RAM)
I am having trouble installing Ubuntu (12.04) on a new Acer Aspire One 756 Netbook with Intel Dual Core 847, 2 GB RAM, and Linpus Linux pre-installed.
I have created a bootable USB Stick with Ubuntu 12.04 (which works fine for my desktop machine) with Pen Drive Linux. However, I am not able to boot from that USB stick.
I am aware of a similar case, however the solution there -- switch boot mode to "Legacy" in BIOS -- does not work for me because there simply is no adjustable "Boot mode" in the BIOS. Yes, I really tried hard to spot it! I can change the boot order so that it has my USB stick on the top of the list, but it won't boot from the USB stick anyway.
I have an Acer Aspire One 756 Windows 8 preinstalled and UEFI secure mode ON and I solved this problem.
Download an Ubuntu 13.04 64 bit version
Create a bootable USB with that Linux
Go to BIOS (press F2 to startup) and set a supervisor password doing so many menu options below will unlock
Set USB HDD first boot and disable secure mode
Reboot Linux and select try Linux (NO INSTALL)
Start GParted and use that to shrink Windows 8 partition (the most large one) to 20 gb
Into the free space created, create a 15 gb EXT4 partition and a 512 MG swap
Then start Linux installation and use OTHER option
Choose the new ext4 partition as / mount point and flag it to be formatted
DON'T touch grub installation partition. It should be
/dev/sda. Leave it alone !!Continue installing normally then reboot
Windows 8 will boot up DON'T worry !! This is normal and is a check to see if win 8 is there !!
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Reboot Windows 8 and press F2 to enter BIOS at startup
- re enable secure mode !!
Go to security menu and use "add uefi executable as secure for boot" option here you will see many folders , go to ubuntu an chose the ubuntu uefi file
BIOS now asks to add it as secure boot uefi firmware into database and to set up a new name for it (set ubuntu or pluto ... or whatever you want)
save setting and reboot
Hit F12 on boot and you will see a new entry (ubuntu or pluto or whatever you put on section 15)
Select that one and UBUNTU will boot strap correctly
I'm writing this guide using exactly my brand new Ubuntu on Acer Aspire One 756
If you boot computer normally Windows 8 will boot !!