On 8/2/21 9:15 AM, Vitaly Zaitsev via devel wrote:
On 02/08/2021 04:04, Chris Murphy wrote:
I'm definitely not attached to keeping things the same. The bios
memtest86+ is still these days installed to /boot but there hasn't
been a menu entry for it for a very long time; in fact maybe it was
only ever on netintall or dvd images? I can't remember that far back

memtest86+ doesn't support UEFI. It only has a menu entry if the Legacy boot is used.

Also memtest86+ doesn't support modern Intel and AMD processors. It will hang on start.

The memtest86+, included in the Fedora install media works. AMD Ryzen 9 5900X here, with 128 GB RAM. Unfortunately, it was recently removed from the install media.

The memtest86+, installed on your computer in Legacy boot mode and then added to the Grub boot menu, doesn't work and crashes on start on the same computer.

That's why I install in UEFI mode, but keep my Fedora 33 install DVD+R disk around and boot it in Legacy mode to run memtest86+ when I need it. The fact that the OS is installed in UEFI mode doesn't matter.

Nikolay
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