Score:0

what does memtest86+ serial console mean

cn flag

In the GRUB, there are 2 options for memory test, memtest86+ and memtest86+ serial console 115200. What the first one means is obvious, it just runs memtest86+, but what does that serial console mean in the second option?

guiverc avatar
cn flag
if running memtest86 on a *headless* device, you're able to access the memtest from a remote screen connected to serial port using speed 115,200bps.
Irsu85 avatar
cn flag
Thanks guiverc, can you please post that as an answer?
Score:1
cn flag

Two options.

  • memtest86+; used for boxes that have a screen attached

  • memtest86+ serial console 115200; used for headless boxes that have a serial terminal/console attached; the 115,200 is the speed (115,200 bps) or the fastest old serial connections (think RS232; well before USB) could reliably achieve before needing to modulate-demodulate signal etc

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