[SOLVED] multiple issues after ram upgrade

hi everyone!
2 new ram modules arrived this morning, which i hastily installed in my machine. this is where the fun starts...
issue 1: no initramfs
so the boot process starts normally it seems. i get past grub and the initramfs starts to load. thats also where it stops dead.
a little google-fu reveals that i should try and chroot from a live iso and recreate mkinitcpio. seems easy enough... but:
issue 2: cannot boot live iso
multiple tries fail, when i finally stumble upon a post mentioning that the live iso cant handle large amounts of ram that well. adding
ram=2048M
gets me one step further. but still no dice. this time she just reboots after systemd does its thing.
what seems like hours later, i manage to get to the root prompt by also adding
nomodeset acpi=off
to the kernel line. so far so good. seems my nvidia gtx 970 and nouveau dont play nice, but that seemed to solve that.
next up: chrooting and rebuilding the initramfs. following the instructions in the beginners guide, i try and mount my root partition, which leads to...
issue 3: cannot mount btrfs root partition
mkdir works fine for the mount point. no problems there. the mount command itself seems to work somewhat too, telling me that sda1 is a btrfs filesystem on an ssd (which it is). then, however, a mysterious series of lines pop up telling me that it is "calling CRDA to update world regulatory domain"...
about a dozen lines of information appear and stop dead yet again.
utterly defeated, i decide its time to do some old fashioned hardware debugging. so i swap out the ram modules (2 sets of 2), popping them in multiple configs in the appropriate slots. memtest64 runs through fine in all configurations. nothing special to be found in the bios either. the 2 sets are from different manufacturers (a-data doesnt make the original set anymore - and havent produced a new set with the same specs), though i did pay attention to the timings, clockspeed and size (everything matches on paper). ending up at the last resort: putting everything back together again as it was originally, i reboot, praying for a familiar boot sequence and maybe even a gdm login prompt. but no such luck today. i am now stuck at
issue 4: putting humpty dumpty back together again
grub loads up normally. systemd fires up and im now faced with this:
INFO task mount:172 blocked for more than 120 seconds.
Not tainted 3.19.2-1-ARCH #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO task btrfs-transacti:194 blocked for more than 120 seconds.
...repeats last INFO a few times...
so that brings us up to speed i guess. im out of ideas and the interwebs dont seem to have anything more to offer with my somewhat intricate set of problems. i know most of you are tinkerers like myself, and i hope theres someone out there that can help me out. to help you help me, here are a few specs and bits of info that might be of interest:
mobo: gigabyte 990fxa-ud5
cpu: amd fx 8350
ram (old): 2x4GB a-data ddr3 2000Mhz C9
ram (new): 2x4GB avexir ddr3 2000Mhz C9
bios settings: defaults all around, except iommu is activated (iommu=pt added to kernel line to let bios handle iommu)
gpu: nvidia gtx 970
partitioning (from what i can remember - i can post exact info, if its needed):
root: 60GB SSD (btrfs)
home: 200GB SSD (btrfs)
var: 20 GB on 1TB HDD (btrfs)
storage: rest of the 1TB HDD (btrfs - i think. this may be an ext4 partition, im not 100% certain)
any help or hints are greatly appreciated!
thanks a lot in advance!
regards,
m.
Last edited by miles969 (2015-04-03 17:10:30)

thanks ewaller, but i had tried that before...
turns out the arch iso was the culprit. i found an ubuntu-gnome live usb and popped it in. surprisingly, chrooting worked fine with that iso and i managed to boot successfully after running
/usr/bin/mkinitcpio -p linux
a few minor fixes (network device names had changed) and im up and running again... with all the ram, no less!
thanks a lot again!
regards,
m.

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jonathan183 wrote:
thiago wrote:
After checking on 'inittab' again I noticed the following files were missing(sadly, I never edited them):
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Has anyone experienced this 'accident' before? If so, do you have any clue how I might recover those files? I would rather not reinstall the system
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pacman -Sf initscripts
to have the package 'officially installed'.
As I stated, 'initscripts' was not the only package uninstalled after the system upgrade, kernel26 was lost too(but kernel26-docs and kernel26-headers were upgraded successfully). After the restore I tried to start kde with 'startx' and got a message stating that '/usr/bin/X' could not be found/executed. That was solved by reinstalling the 'xorg' meta package, but I believe some package of the 'xorg' group was also uninstalled after the upgrade.

Battery drains while sleeping after RAM upgrade

Installed 16 GB of RAM and a Hybrid/SSD 1 TB internal HD on MacBook Pro 15" mid 2012 and now the battery drains while the computer is in sleep mode, about 1-3 % per hour. Before the RAM upgrade (stock 4 GB of RAM) there was no noticeable battery drain, so I assume it has to do with the upgrade. I read that it takes more power to maintain 16 GB of RAM during sleep, so my questions are as follows:
Is 1-3% per hour normal?
Will resetting the SMC help the issue?
Does the Hybrid HD have anything to do with this?
I am not too happy about the battery drain as it happens that I don't use my laptop for some time and prior to the upgrade the loss of battery charge was not an issue at all. Is this the price I have to pay for maxing out my RAM or is there a way (resets, settings, etc) to reduce the amount of battery loss
Thanks for your input.

Hi everybody. I have the same question. I have a macbook unibody late 2008. I have recently upgraded the OS to Yosemite. In order to have a smoother functioning of the system I have immediately replaced my original 2Gb (1+1) RAM with 8 Gb (4+4). Since then, I have noticed a dramatic reduction of my battery charge during sleep mode. Now after 8 hours of sleep it goes from 100% to around 65% (before it was 95%). Is it a natural consequence of having installed a larger RAM or there could be anything wrong with my settings?
I have read a couple of articles about standby mode and standbydelay setting but this does not apply to my model of macbook.
Here is my pmset -g result:
Active Profiles:
Battery Power        -1*
AC Power        -1
Currently in use:
hibernatemode        3
acwake               0
lidwake              1
halfdim              1
sleep                20 (sleep prevented by AddressBookSour)
ttyskeepawake        1
sms                  1
hibernatefile        /var/vm/sleepimage
disksleep            10
displaysleep         2
Thanks a lot for any comment / suggestion /hint.
Bye

Mac mini won't boot after RAM upgrade.

Tried installing new RAM in my Mac Mini, 512MB stock to 2GB of Crucial. Followed the directions to a T, grounded myself the whole time.
Things I've tried so far:
1. Resetting the PRAM, no luck.
2. Holding option at start-up, shows no icon.
3. Holding shift, no luck.
4. Holding X, nothing.
How do I get it to accept a CD if it won't boot?

Welcome to Apple Discussions!
You clearly have a problem, but you don't describe exactly what that is other than that your mini won't boot after the upgrade. What happens when it starts up? Does it attempt to start and hang up on the grey or blue screens, or does it start beeping at you almost immediately after you try and start it up, and also flash the power light?
If the former, then you may have dislodged a connector while working inside the system, in which case opening it up and checking that everything is firmly connected would be the first thing to do. If the latter, then the beeping/light flashing is the system telling you it has failed the power-on self test and the pattern of beeps/lights indicates why. In your case likely the system can't find workable memory. In that instance, opening the system and ensuring that the RAM is firmly and fully seated would be a good step, and if the mini continues to fail, then replacing the new RAM with the original to test that the system will then start.
It is not likely that anything had damaged your MacOS install in the process of upgrading, thus normally no reason to need to boot to CD as a result of a RAM issue.

[SOLVED] multiple issues after ram upgrade

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