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Old Zorin Forum archive → Help and Support

zramo error

zorin0s

Wed Nov 13, 2013 12:17:19 pm

i keep getting this error on startup

buffer i/o error on device zram0 logical block 508192. What does this mean?

madvinegar

Wed Nov 13, 2013 1:03:38 pm

Have you installed Zram?
If yes, how?

zorin0s

Wed Nov 13, 2013 3:40:05 pm

I have no idea if i have or not. i dont even know what zram is

madvinegar

Wed Nov 13, 2013 4:22:09 pm

In terminal give:

Code:
lsmod | grep -i zr

and
Code:
sudo blkid


and post the result back here.

zorin0s

Wed Nov 13, 2013 5:29:50 pm

zram 18193 1

/dev/sda1: UUID="17752716-3727-4472-b048-8f02b64fc57b" TYPE="ext4"
/dev/sda5: UUID="1ffd9e0e-626a-430b-bfcd-372446bacb54" TYPE="swap"
/dev/zram0: UUID="4e08f863-f949-4e09-9736-908099fe2ac9" TYPE="swap"

madvinegar

Thu Nov 14, 2013 7:52:53 am

Yes, you have zram enabled.
Zram is a program used usually for low spec PCs with low memory. It creates a virtual swap ram that helps programs load faster.
Did you install it?

If you don't need it I think you can uninstall it by running in terminal
Code:
sudo apt-get remove zram-config


Do the above, reboot and see if you get the error message again.

zorin0s

Thu Nov 14, 2013 9:13:44 am

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package zram-config is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Wolfman

Thu Nov 14, 2013 10:39:10 am

Hi,

try this terminal command and restart afterwards:

Code:
sudo apt-get update && sudo apt-get dist-upgrade -f


If as you say zram-config is not installed; do you have a 2nd swap partition per chance?, I am talking about a full blown partition created by you!. (Zram creates its own swap afaik!)

Regards Wolfman :D

madvinegar

Thu Nov 14, 2013 11:13:52 am

The other way to install zram is by adding a ppa to the system!
Specifically the ppa:shnatsel/zram

Have you added the ppa?

zorin0s

Thu Nov 14, 2013 12:46:19 pm

madvinegar wrote:The other way to install zram is by adding a ppa to the system!
Specifically the ppa:shnatsel/zram

Have you added the ppa?


no idea. i dont think so

Wolfman

Fri Nov 15, 2013 6:33:20 am

Hi,

did you run the command I posted earlier?.

Regards Wolfman :D

zorin0s

Fri Nov 15, 2013 8:51:52 am

yes. it did nothing

madvinegar

Fri Nov 15, 2013 10:15:48 am

Try these two commands in terminal:

sudo dpkg --purge zramswap-enabler
sudo dpkg --purge zram-config

zorin0s

Fri Nov 15, 2013 1:51:57 pm

dpkg: warning: there's no installed package matching zramswap-enabler

Wolfman

Sat Nov 16, 2013 7:00:32 am

Hi,

I have a question, did you install Zorin OS with a home partition from a different OS and did you format the /home partition before you installed Zorin; or did you leave it intact, it might be that there are files left over from a previous install on the home partition?.

Try running this command:

Code:
sudo dpkg --configure -a


It might solve the problem???.

Regards Wolfman :D

zorin0s

Sat Nov 16, 2013 7:14:24 am

It was a brand new machine, with no operating system on it.

that command didn't do anything.

Wolfman

Sat Nov 16, 2013 7:37:17 am

Hi,

does the PC have UEFI on it and is it disabled in BIOS?.

Did you manually do your own partitioning?.

Regards Wolfman :D

zorin0s

Sat Nov 16, 2013 9:07:55 am

The name of the bios is UEFI. i looked through the options and i couldn't see UEFI anywhere in there.

Wolfman

Sat Nov 16, 2013 10:42:50 am

Hi,

take a look here, it might help you, I think you need to disable UEFI and it might just make the problem go away!:

http://www.eightforums.com/tutorials/17 ... -uefi.html

You still didn't answer as to whether or not you did your own partitioning?.

Is this solved btw?:

viewtopic.php?f=5&t=5898

Regards Wolfman :D

zorin0s

Sun Nov 17, 2013 6:20:48 am

Wolfman wrote:Is this solved btw?:
viewtopic.php?f=5&t=5898

Regards Wolfman :D


yes that was solved. thanks. As for this zram0 error, if i manage to fix the bios, will this increase or decrease performance? or will it have no effect? As for the partition, i installed zorin stand alone. So i used the entire HD space for it

Wolfman

Sun Nov 17, 2013 6:26:17 am

Hi,

I honestly don't know whether or not you will have an increase in performance but it might make the zram problem go away, I am only working on an assumption and fishing for the answer as to why you are having the problem in the first place. I don't have a UEFI PC myself so cannot replicate your problem!.

Regards Wolfman :D

madvinegar

Sun Nov 17, 2013 6:37:20 pm

As regards the zram error, try also this:

Open terminal and run:

sudo gedit /etc/modules

A file will open. Do you see any line "zram"? If yes delete it, save, exit and reboot.