Hello BigGoofyGuy
I just checked your machine and I think it is Lenovo IdeaPad 120S-14
IAP. (With I).
Here it is a BIOS Simulation for your machine:
https://download.lenovo.com/bsco/index.html#/textsimulator/IdeaPad%20120S-14IAP%20(81A5)
Since you are using ArcaOS 5.0.7 the only chance to make it work is changing to:
"Boot Mode: Legacy Support"But I will highly recommend you to use an USB Memory flash, it is faster than the DVD. When the machine boot check if by pressing F12 or F9 you can select the boot device.
Check the instructions for the bootable USB. And also if you have a different machine around, check also if it boots to the installation menu (without installing ArcaOS), just to be sure the USB Flash is working.
On "arcaos-5.0.7-en-usb-2021-12-05.zip" it says:
4.1. on OS/2 / eCS / ArcaOS:
dfsanos2.exe -q run aosboot.dfs <Enter>
4.2. on Windows 2000/XP/Vista/7/8/8.1/10 (and variants) as Administrator as:
.\dfsanwin.exe -q run aosboot.dfs <Enter>
TIP: To get to the Command prompt, or Power Shell prompt in later
versions of Windows, display the directory in Windows, then click File,
and select to open Command Prompt or Power Shell, then select the
option to open in administrator mode.
Follow carefully the instruction on the readme file...
and
6.0. Copy arcaos-5.0.x-en.iso (where x is the downloaded realease) to:
<USB stick>\ARCA_ISO\ARCAINST.ISO
or, on Linux or Mac:
<USB stick device>/ARCA_ISO/ARCAINST.ISO
** CAUTION **
On operating systems which are case sensitive and/or VFAT-capable,
ensure that the ISO filename is specified in UPPER CASE.
It is very important to copy the file as "ARCAINST.ISO"
Regards