System not booting after RAM upgrade

Tracker

Tracker

Upgraded RAM but laptop goes into single user mode instead and complains about something not being loaded.

The system was booting fine before the RAM upgrade - I'm actually at the shop right now testing the RAM sticks with memtest86 (from Ubuntu stick - isn't there a shorter test? Takes awful amount of time for 64 g)

I had also installed /compat/ubuntu earlier and from what I could tell from the earlier message - it seemed like something from fstab probably was preventing it from booting.

Does anyone have any tips (fast steps since I'm at the shop :D) - to sort this booting issue?
 
Also does this look somewhat ok for the RAM test? Cant really be sitting all day at the shop to test the modules

Why does it say DDR3? My system manual says it supports DDR4 : ?
Or is it some error in the program? (It's a Ubuntu 16.04 boot stick btw)
IMG20230404152955_1.jpg
 
Nvm commenting out a line in /etc/fstab made it boot normally. Htop shows correct amount of RAM - guess I'm good with this. Will sort out fstab later
 
are you sure you got the correct RAM, put back the old and see if it still works. swipe someone else RAM and try it
 
Tracker said:
Upgraded RAM but laptop goes into single user mode instead and complains about something not being loaded.

The system was booting fine before the RAM upgrade - I'm actually at the shop right now testing the RAM sticks with memtest86 (from Ubuntu stick - isn't there a shorter test? Takes awful amount of time for 64 g)

I had also installed /compat/ubuntu earlier and from what I could tell from the earlier message - it seemed like something from fstab probably was preventing it from booting.

Does anyone have any tips (fast steps since I'm at the shop :D) - to sort this booting issue?
Click to expand...
The memtest86 that is shipped with the ubuntu install iso is junk. I've had it tell me that perfectly good memory is faulty on more than one occasion. It's an old buggy version of memtest that gives false results. Instead get the latest version from https://memtest.org/ and use that. I remember spending a whole afternoon tearing my hair out trying to get a box memtest clean.. reseating the dimms, cleaning the contacts, you know the drill, only for the ubuntu memtest to tell me it was faulty. When I eventually used the current version from memtest.org, it passed with no faults. It's a waste of time trying to use the one that ships with ubuntu.
 
itsthosestonesman said:
The memtest86 that is shipped with the ubuntu install iso is junk. I've had it tell me that perfectly good memory is faulty on more than one occasion. It's an old buggy version of memtest that gives false results. Instead get the latest version from https://memtest.org/ and use that. I remember spending a whole afternoon tearing my hair out trying to get a box memtest clean.. reseating the dimms, cleaning the contacts, you know the drill, only for the ubuntu memtest to tell me it was faulty. When I eventually used the current version from memtest.org, it passed with no faults. It's a waste of time trying to use the one that ships with ubuntu, it's rubbish.
Click to expand...
 
yuripv79 said:
This.
Click to expand...
so it was basically complaining about /compat/linux/dev/shm line - once I commented this line out it booted fine - I'm still confused why it would complain first and boot with this line commented out. Will probably try to understand later.
Code: 
tmpfs    /compat/linux/dev/shm    tmpfs    rw,mode=1777    0    0
userxbw said:
are you sure you got the correct RAM, put back the old and see if it still works. swipe someone else RAM and try it
Click to expand...
Yes - htop shows proper capacity, that was my go-to in a hurry. Sold the old RAM back - system works perfectly fine with new RAM.
I have so much RAM now I dunno what to do ?
itsthosestonesman said:
The memtest86 that is shipped with the ubuntu install iso is junk. I've had it tell me that perfectly good memory is faulty on more than one occasion. It's an old buggy version of memtest that gives false results. Instead get the latest version from https://memtest.org/ and use that. I remember spending a whole afternoon tearing my hair out trying to get a box memtest clean..
Click to expand...
Oh that's interesting - had no idea it was junk. I guess having a bootable Ubuntu has been my savior many a times for a quick check - not sure where the memtest was installed from but it was a multiboot grub usb that I had made from a long time back. Does freebsd bootable have any such software to check RAM?
 
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