You can simply add kernel parameter while booting. Either by tapping E or TAB and putting iomem=relaxed at the end of the linux line and then ENTER or CTRL+X to boot.
If you didnt protect the flash regions then you should be able to reflash core'ie with flashrom.
On October 31, 2019 6:58:00 AM UTC, Dalao dalao@tutanota.com wrote:
Hi, I was using Seabios but recently switched to Tianocore. However, the tianocore can't boot my Manjaro linux distribution which was installed using the non-uefi method. So I want to flash back.
I only have a Manjaro live usb at hand. The tianecore can boot it. However this live usb is not set with iomem=relaxed, so I can't read or write the bios using flashrom.
I don't know how to set the live usb's grub settings because when it boots, it's already running commands. When using this tianocore with vgabios I can't see the grub screen when booting.
So how to set the live usb with iomem=relaxed? Is there any live usb that already have the iomem=relaxed set? Could anyone help me build a usb image dedicated for automatically recover flashing?