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LL 6.0 installation failed on a dual-boot Acer 5745G with Windows 10 and LL 5.8


Well, I have finally been able to install the LL 6.0, following the tutorial.

Windows 10 is installed on /dev/sda
LL 6.0 is installed on /dev/sdb2

1) I've ignored the “no EFI partition warning”
2) The LL boot loader has been installed on /dev/sda, i.e. the drive with Windows 10 boot loader.

A satisfying end of a fruitful monologue! :)

After three days of unsuccessful attempts to install LL 6.0, there is still no joy. A year and half ago, LL 5.4 was installed without any problems on the same laptop.  It looks like there may be a bug in the installer.  It seems the LL 6.0 installer always wrongly assumes that my laptop uses UEFI instead of BIOS.

Has anybody successfully installed LL 6.0 on a PC with BIOS, for dual boot with Windows 10, that is already installed on a different HDD?


Today I tried to install the new Linux Lite 6.0 over the existing LL 5.8 disk partition and I had to cancel the installation after an error message.

I have an ACER Aspire 5745G with CPU i5-410M, GPU GT420M and 8GB RAM from about 2009/2010. It has BIOS version 1.19. I have been happily dual booting Windows 10 and Linux Lite 5.4-5.8 for more than a year. Windows 10 is installed on /dev/sda, which has several ntfs partitions. LL 5.8 is installed on /dev/sdb2 as an ext 4 partition. And /dev/sdb1 is a ntfs data partition.

I think that the LL boot loader is saved on \dev\sda during the LL 5.4 installation.

I have followed the Linux Lite Help Manual during the LL 6.0 installation from an USB created with Rufus.

1.   I chose “Something else” for “Installation type”
2.   Clicked “Change…” for /dev/sdb2 and selected Ext4, Format, and “/ “ for Mount point.
3.   Assigned mount points for the ntfs data partitions /dev/sdb1 and /dev/sda2
4.   Chose again the /dev/sda as “Device for boot loader installation”
5.   Clicked “Install Now” button.

Then the message “No EFI System Partition was found. This system is likely not be able to boot successfully, and the installation process may fail. Please go back and add an EFI system Partition, or continue at your own risk” appeared on the screen.

I doubt my laptop with BIOS 1.19 needs EFI Partition, and I don’t like to ignore the installation process warnings, so I cancelled the installation.

Please, can somebody advise me, how I should install LL 6.0 in my case?

Many thanks!


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