System often freezes. REISUB is working. So BIOS is not the cause, right?

Hi! After 25 years of windows I’m finally here.
I have a new PC and I know that this mobo in my setup - gigabyte x670e aorus master - is very buggy.
I don’t want to put many details here, because it’s a basic question to start from: if I can reboot my PC with REISUB (actually, PC start reboot after REIS) then it means that hardware is still functioning, right?
If so, I will provide more information according to guidelines in sticky post of support.

Thank you in advance, sorry for my poor English.

Yes, and so is the kernel, because it’s the kernel that interprets the System Requests. But that said, it should not reboot until you hit the “B”.

  • R = unRaw
  • E = tErminate all running processes
  • I = kIll all running processes except for init
  • S = emergency Sync
  • U = remoUnt all filesystems in read-only mode
  • R = Reset the processor

So first be sure you have the last Bios installed (I think latest it’s F13c)…

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Ok, so mobo is defeated (that wasn’t easy victory for me) and runs on F13c. No freezes, everything’s fine. All responces here was very helpful, thank you very much!

But I found another issue.
Before Manjaro I took two runs with another distros - Mint first, then Ubuntu. Every install I did after deleting and creating new partitions on empty drive. But now in BIOS I have the boot option ‘ubuntu’ instead of ‘manjaro’ (I don’t remember how the option with Manjaro was spelled). And after reboot with ‘ubuntu’ option I get the grub with command line. But reboot with ‘disabled’ in all options of boot priority gives me loading of Manjaro :crazy_face:
Honestly, I’m totally confused. I think I’m just overwhelmed with too much new info.
Maybe it will be better to reinstall Manjaro (I’m delighted, btw) on an empty drive, make another fresh install?
Really need advice, what do you think?

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I think efibootmgr manages these entries. Take a look at this three threads:

efibootmgr -v
Timeout: 1 seconds
BootOrder: 0001
Boot0001  ubuntu        HD(1,GPT,184ff156-c249-4240-8878-7759fa6e2af5,0x800,0x219800)/File(\EFI\ubuntu\shimx64.efi) File(.)
      dp: 04 01 2a 00 01 00 00 00 00 08 00 00 00 00 00 00 00 98 21 00 00 00 00 00 56 f1 4f 18 49 c2 40 42 88 78 77 59 fa 6e 2a f5 02 02 / 04 04 34 00 5c 00 45 00 46 00 49 00 5c 00 75 00 62 00 75 00 6e 00 74 00 75 00 5c 00 73 00 68 00 69 00 6d 00 78 00 36 00 34 00 2e 00 65 00 66 00 69 00 00 00 / 7f ff 04 00
    data: 00 00 42 4f

But where is Manjaro’s boot?
Also, the system freezes again. Very rarely, a couple of times. Right now I’m pretty sure that the BIOS firmware is to blame, too many people are struggling with this. Mobo shows 00 post code, which is not even documented in the manual. REISUB is working (I was wrong before, of course the reboot starts at ‘B’ :crazy_face: ).
I’m kind of struggling a little, but… holy moly, that distro is such a beauty, I will never give up.

edit: I tried Mint and Ubuntu before and there wasn’t any freezes. But I did some hardware replacement around that time, so… it’s another confusion.

System can be installed in BIOS or UEFI mode. Efibootmgr shows what’s installed in UEFI mode. You probably installed Ubuntu in UEFI mode and Manjaro in Bios mode. Try:

sudo efibootmgr

If the answer is “efi variables are not supported on this system” then Manjaro is in Bios mode and boot is controlled by Grub according to this file:

sudo cat /etc/default/grub

Press ESC key when Manjaro is booting to see Grub menu. You can read this for further information:


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