In a test was able to get memtest 6.01 to work from modified regular boot of image, but trying from UEFI boot under Virtual Box it doesn't bring up menu, but brings Shell options. Process get memtest files from https://memtest.org/ https://memtest.org/download/v6.01/mt86plus_6.01_64.grub.iso.zip Use isomaster to extract two memtest files from boot and uefi directories and create following unique names. 144344 memtest.leg 144384 memtest.uefi Use isomaster to modify Fedora-Workstation-Live-x86_64-37-1.7.iso Added two memtest files to /images directory and modified /boot/grub2/grub.cfg to add menuentry 'Memtest Legacy' { echo 'Loading memtest 6.01 for BIOS BOOT SYSTEM' linux /images/memtest.leg } menuentry 'Memtest UEFI' { echo 'Loading memtest 6.01 for UEFI BOOT SYSTEM' linux /images/memtest.uefi } Saved the image as Fedmem.iso after additions. Booting as legacy option under VirtualBox the memtest options will both work fine to bring up memtest. With grub4dos boot, the memtest.leg only works with a legacy boot, and memtest.uefi only works with UEFI boot. Tried to boot modified Fedmem.iso, but in UEFI boot mode it brings up a Shell versus bringing up the menu as the original iso does. Probable dealing with changes in image, or perhaps the name of iso being different. I believe at one point memtest was include with boot iso. Know I've occasionally had machines with memory issues, so generally ran memtest on them if didn't know memory was good. Perhaps if memtest programs were added using Fedora build, the efi option would work. Just wondering. Have the memtest 6.01 work on both install Fedora 36 and Fedora 37 machines from grub menu. Have put info on bugzilla report as well. Thanks. Perhaps someone with more experience with UEFI. Only have two machines using UEFI boot, and do testing with Virtural Box on images. +------------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor (Retired) mailto:mikes@xxxxxxxx mailto:msetzerii@xxxxxxxxx Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +------------------------------------------------------------+ _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue