When Secure Boot is on, Endless’s grub will call into shim to verify that the Endless Linux kernel was signed and distributed by Endless. Ubuntu shim -> Ubuntu grub -> Endless shim -> Endless grub -> Endless Linux kernel I guess that’s a pretty reasonable approach, thanks for sharing. Interestingly the Endless OS boots with secure boot on if I choose the grub of Endless OS in BIOS I could chainload the grub of Endless OS but it was not booting and I had to disable secure boot. I opened /etc/default/grub and changed the following lines: GRUB_TIMEOUT_STYLE=hidden The above menu entry chainloads the grub installed by Endless OS.Īfter booting there was no chance of selecting the above menu entry since the grub menu was hidden.
I was told to replace two instances of “1234-abcd” by UUID of /dev/sda1 which is EFI partition created by Endless OS.
I asked question on Ask Ubuntu and was told to add the following menu entry in /etc/grub.d/40_custom menuentry "Endless" But the grub of Ubuntu did not pick up the entry of Endless OS. I could install Ubuntu 18.04 after resizing the Endless OS partition. I bought Acer Aspire 3 Model A315-21 which came with pre-installed Endless OS. When I choose siduction, I get Siductions boot menu next. I can choose the stick with siduction and it will present me the rEFInd menu, where I also could boot endless. On the following menu I find the internal ssd and the stick. I could not find similar information for Ubuntu quickly.Įdit: On my Acer notebook, I have to hit F12 when the Acer splash screen appears to be able to boot from the stick. I guess this should work out very similar with Ubuntu, but I am not really sure that current versions of Ubuntu use also Debian’s isohybrid technology (see: ), which is a necessary precondition for step 1 above. Install rEFInd from the repository apt install refind, it will update the ESP (EFI System Partition) on the stick with a correct boot manager and find the siduction.In my case the siduction installer was not able to finish the installation (see my post on the siduction forum.This will create an ESP (EFI System Partition), a root partition and a swap partition on the stick. start the installer (calamares) and choose the whole stick for siduction.Use gdisk to create a new GPT (GUID Partition Table) on the stick.Boot from the stick (you may have to fiddle a bit in the BIOS) after having added toram in the boot command line parameters of the selection ISO - HD-USB Stick.Backup contents of the USB stick if you need the contents, it will be overwritten.I successfully created a dual boot configuration on an acer travelmate spin B118 with endless OS preinstalled on the internal SSD and siduction (Debian sid) on a 64GB USB 3 stick.
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