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  How to disable/turn-off "zram"
Posted by: Wirezfree - 04-06-2014, 12:21 PM - Forum: Other - Replies (1)

Hi All,

Hoping this is the right section for this.?
I'm trying to find out how and where to disable "zram"
I have the following in dmesg.log file

Code:
zram: module is from the staging directory, the quality is unknown, you have been warned.
Disabling lock debugging due to kernel taint
zram: num_devices not specified. Using default: 1
zram: Creating 1 devices ...
udevd[115]: starting version 175
Adding 7946824k swap on /dev/zram0.  Priority:100 extents:1 across:7946824k SS

From what I have been able to deduce, it was included from 12.04LTS onwards.
By default it allocates 50% of available ram to a Ram Swap device, here is what I have:
Code:
wirezfree@asus-lili:~$ sudo blkid
[sudo] password for wirezfree:
/dev/zram0: UUID="ccba7a93-559d-4a53-99ae-8ad8cb2865e7" TYPE="swap"
/dev/sda1: LABEL="root" UUID="a1c54d22-71f7-442f-9637-61a1db3550a9" TYPE="ext4"
/dev/sda2: UUID="a94d69e0-65a6-4970-9008-e8096b885bac" TYPE="swap"
/dev/sdb1: LABEL="home" UUID="f3f71049-bef3-45d6-8140-e0b838ba6e89" TYPE="ext4"
/dev/sdb2: LABEL="myfiles" UUID="076d5297-3f91-49a1-bb56-e3c43aef6a60" TYPE="ext4"
/dev/sdb3: LABEL="winlin" UUID="791816BE35757417" TYPE="ntfs"
/dev/sdb4: LABEL="myvms" UUID="11b60602-5871-423e-a796-d5e615759d42" TYPE="ext4"
and
Code:
wirezfree@asus-lili:~$ cat /proc/swaps
Filename                Type        Size    Used    Priority
/dev/zram0                              partition    7946824    0    100
/dev/sda2                               partition    17612796    0    -1
wirezfree@asus-lili:~$

There is an additional configuration option available:
Code:
sudo apt-get install zram-config
Which is supposed to create "zram" device(s) based on number of cpu's & available memory.
However it got a bug...
https://bugs.launchpad.net/ubuntu/+sourc...bug/996535
and it fails, and produces this in dmesg.log
Code:
zram: module is from the staging directory, the quality is unknown, you have been warned.
Disabling lock debugging due to kernel taint
zram: num_devices not specified. Using default: 1
zram: Creating 1 devices ...
udevd[115]: starting version 175
Adding 7946824k swap on /dev/zram0.  Priority:100 extents:1 across:7946824k SS
Cannot change disksize for initialized device
init: zram-config pre-start process (1146) terminated with status 1

I have un-installed the "zram-config", and I'm back to the original situation

To verify that it's not a "fixed" feature I checked on another Ubuntu based distro on my Laptop, Zorin.
Code:
wirezfree@zorin-hp:~$ sudo blkid
[sudo] password for wirezfree:
/dev/sda1: UUID="a179c840-1bde-48c9-b11e-11a080929c55" TYPE="ext4"
/dev/sda2: UUID="76478879-9d5e-4194-999b-4f3162cd4a5d" TYPE="swap"
/dev/sda3: UUID="5e5fc6c6-fd93-4aa9-9f13-3ad2986bd892" TYPE="ext4"
and
Code:
wirezfree@zorin-hp:~$ cat /proc/swaps
Filename                Type        Size    Used    Priority
/dev/sda2                               partition    15722492    0    -1
wirezfree@zorin-hp:~$

There is no base "zram" devices enabled, and no "zram" entries showing in dmesg.log

So how can I turn off the base "zram" configuration in LinuxLite..??

Many Thanks... David

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  bootstick
Posted by: mirco67 - 04-06-2014, 11:57 AM - Forum: Installing Software - Replies (7)

Hi!

I use to test Live distros on USB stick. on the last distro I used, there was a small prog called Boot Stick ('bootstick' is the name of the pack). But it is not in the LL's repo. 'bootstick' is a fork of the Canonical's usb-imagewriter project. how can I install it on LL?

Thank you and sorry for my english!

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  Error Logs Entries - Should I be concerned..?
Posted by: Wirezfree - 04-05-2014, 04:53 PM - Forum: Installing Linux Lite - No Replies

Hi All,

I have a number of entries in the dmesg.log file, they may or may not be of concern.
I see many times on forums the comment "If it's working don't concern yourself, or worry"...
"I may have a small oil leak on my car that I don't notice, everything seems O.K... Until my engine seizes up"

So whilst everything "seems" to be O.K, when I see "Kernel Taint", "Bailing" and "Warning" it does concern me.
I really like LinuxLite, so much so that I wiped, rather than Dual Boot my main PC, I wanted a clean install.
I have extensively Googled them,
Some are possible known bugs, some confusing/cryptic, it's just not clear to me, probably due to my like of knowledge.

So should I post them..??,
I have posted one, "Intel Microcode", along with an update,
I think it maybe half fixed.. in that the code seems to be updated, but the old code appears to still load?

Thanks... David

ps...
Not sure where this topic sits, but as I observed them whilst I'm at the install of just LinuxLite it'sself, no other apps installed yet, I put it here.

((I have an idea for LinuxLite to stand out from the crowd here, and benefit the LinuxLite developers and help in user adoption/confidence, but that is another post))

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  Help - SONY DVD RW DW-Q28A linux drivers
Posted by: Coastie - 04-05-2014, 04:50 PM - Forum: Hard Drives and SSDs - Replies (5)

Tried to burn and read CD but Xfburn says the drive is empty with CD in it. DVD burn/read works. Called shop where I bought burner. Told a driver(s) problem. Told to check in config files to see if there is a line with a question mark. Don't know how to find. Also told just do a Google search for the drivers and download and install. Did but was unsure which site would be save to use and Firefox wanted to open with CD burner.

Help!

[attachment deleted by admin, more than 25 days old]

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  HowTo: Create and Use a Separate Data Partition
Posted by: gold_finger - 04-04-2014, 10:47 PM - Forum: Tutorials - Replies (10)

How To Create and Use a Separate Data Partition

There are advantages to creating a completely separate partition for your data files instead of keeping them on a dedicated /home partition, or on the / (root) partition with the system files.  Here are a few:

1.  Makes use and sharing of data easier between different operating systems on the computer (Windows or Linux).  Instead of having data created while using each OS saved to its own location, they can all read/write data to one central location.
2.  Eliminates potential problems with more than one Linux distro using the same /home partition, where the user program configuration files may conflict with each other.  (Although it's more rare, this can also happen when upgrading a distro to the latest version of itself.)
3.  Makes re-installation of the operating system, upgrading to new distro versions, and switching to different distros easier.  Data is safely off on its own partition, so no need to copy it back on after a new install.  Just link to the partition again after replacing the root partition with the new installation.
4.  Save time for newbies and experienced users whose system gets broken for some reason, requiring a re-installation.  No need to attempt accessing broken install to copy off data before replacing the system -- it's already safely off in its own location.


Notes on example used in this tutorial:

1.  Mount points can be anywhere you like, but are most typically made under /mnt, /media, or your /home.  This example has the mount point under /mnt.
2.  You can name your mount point anything you want as long as it doesn't conflict with an already existing filename under that location (mount point).  This example uses the name "DATA".
3.  Anywhere you see "yourusername" in a command, you are supposed to substitute your actual user name in it's place.
4.  The location of the data partition on the drive for this example is /dev/sda5Make sure you substitute your specific partition in place of sda5 when running these commands.
5.  If you want to also have a separate /home partition to preserve your config files for future reinstallations, feel free to do that.  That will have no effect on anything below.  (Just remember that it will not need to be more than a few GB's in size if it's only holding the config files.)
6.  Everything below is done using commands in a terminal.  (I've never tried using a GUI, don't know if it's even possible to use a GUI, and wouldn't bother learning the GUI if it were possible because the terminal is quicker.)



Use GParted from a live Linux DVD/USB to create the partitions you want for the operating systems you plan to install.  Or use it to make changes, additions, re-sizings, etc. to the partitions already on the disk.  Create your data partition and format it according to your needs -- eg. Ext4 if to be used with Linux distros; NTFS if to be shared with a Windows OS.  (Here is a good tutorial for GParted if you need it:  GParted partitioning software - Full tutorial.)

After installing a Linux operating system, create a mount point for the data partition (eg. /mnt/DATA)

Code:
sudo mkdir /mnt/DATA

Mount the partition
Code:
sudo mount /dev/sda5 /mnt/DATA

Take ownership of the mount point
Code:
sudo chown -R yourusername: /mnt/DATA

Navigate to the new data mount point
Code:
cd /mnt/DATA

Create typical home folders and any others you want for your data
Code:
mkdir Documents Downloads Music Pictures Videos

Find out the UUID# for your data partition
Code:
sudo blkid

Open your fstab file and make an entry to auto-mount the partition on boot
Code:
gksu leafpad /etc/fstab

In leafpad, add either of the two examples below and substitute your UUID# in place of ones below.
  • * For an Ext4 formatted partition, add an entry like this to end of file
Code:
# Mount DATA partition under /mnt/DATA
UUID=ceee2524-7df2-4d21-a1f7-9e7e55c722cc     /mnt/DATA  ext4  defaults  0   2
  • * For an NTFS formatted partition (used if sharing with Windows), add an entry like this to end of file
Code:
# Mount DATA partition under /mnt/DATA
UUID=747D4C9C1EFAD1F2  /mnt/DATA  ntfs-3g  defaults,windows_names,locale=en_US.utf8  0  0

Save the changes to fstab and close the text editor.

Now you have a choice to either use "symlinks" between home and the data partition or to "bind" each directory in the data partition to the existing directories in home.

If you use symlinks, delete the existing folders in /home/yourusername that you made duplicates of in the data partition.  (I always leave the "Desktop" folder in /home/yourusername and don't create that on the DATA partition.)  Then create symlinks for each following this format:
Code:
ln -s /mnt/DATA/Documents /home/yourusername

If you bind the directories to home, keep the existing directories in /home/yourusername and follow these instructions (recommend using option #3 -- "Auto Mount at Boot by creating your own Upstart script"):
HowTo: Using Bind to Remount Part of a Partition

That's it.  Now your data files will end up on the separate data partition and everything will automatically work that way each time you boot into any OS.

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  Moving panel 1.
Posted by: bvpainter - 04-04-2014, 04:28 PM - Forum: Other - Replies (2)

I have just installed L-L and like the look of it, but would prefer to have my panel 1 at the top of the screen, so I can put  a dock at the bottom.
I'm sure with other XFCE distros there was an option to place panels top or bottom, but I cannot find this.

Probably an easy answer, but I''m to thick to see it,  Wink

I've made up a dock through using panel 2, which is currently on the left side of the screen, but I'd prefer it at the bottom.

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  London logs in
Posted by: bvpainter - 04-04-2014, 04:21 PM - Forum: Introductions - Replies (1)

Hi, I've recently installed L-L . I've tried many distros but recently have been looing for a small one to use on an elderly machine and this it.

It looks neat so I guess I'll stick with it.

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  [SOLVED]dmesglog intel microcode update
Posted by: Wirezfree - 04-04-2014, 10:28 AM - Forum: Installing Software - No Replies

Hello,

Whilst looking in the log files I found the the following:

Code:
[    0.123183] perf_event_intel: PEBS disabled due to CPU errata, please upgrade microcode
[    3.770289] microcode: CPU0 sig=0x206a7, pf=0x2, revision=0x1a
[    3.879765] microcode: CPU1 sig=0x206a7, pf=0x2, revision=0x1a
[    3.890331] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x1a
[    3.891874] microcode: CPU3 sig=0x206a7, pf=0x2, revision=0x1a
[    3.894952] microcode: Microcode Update Driver: v2.00 <[email protected]>, Peter Oruba
Googling indicated that there is an integrated base microcode that is loaded at each boot, and my code was out of date.
Further Googling led me to:
https://sites.google.com/site/easylinuxt.../microcode

Following the instructions resulted in:
Code:
[    0.123196] perf_event_intel: PEBS disabled due to CPU errata, please upgrade microcode
[    4.671498] microcode: CPU0 sig=0x206a7, pf=0x2, revision=0x1a
[    4.764014] microcode: CPU1 sig=0x206a7, pf=0x2, revision=0x1a
[    4.769083] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x1a
[    4.770855] microcode: CPU3 sig=0x206a7, pf=0x2, revision=0x1a
[    4.777104] microcode: Microcode Update Driver: v2.00 <[email protected]>, Peter Oruba
[    5.914461] microcode: CPU0 updated to revision 0x29, date = 2013-06-12
[    5.914886] microcode: CPU1 updated to revision 0x29, date = 2013-06-12
[    5.915303] microcode: CPU2 updated to revision 0x29, date = 2013-06-12
[    5.915766] microcode: CPU3 updated to revision 0x29, date = 2013-06-12
[    5.915769] perf_event_intel: PEBS enabled due to microcode update
Which if my understanding is correct means,
the integrated microcode was loaded, but then the updated microcode is recognised and loaded.
So I think this is all O.K, but I'm not to sure..??

UPDATE: #1
Apparently after further Googling there is another tool that appears(but this is where I get a bit lost) to allow the removal
of the older version, but it needs "Multiverse Repository" adding..??, and I don't want to break anything..!!
iucode_tool
http://manpages.ubuntu.com/manpages/rari...ool.8.html


UPDATE: #2
It appears the iucode_tool is installed along with intel-microde packages, a dependency.
Also the original base code cannot be removed, from Googling the base and update always seem to show in dmesg.
So I guess I can close this.

Thanks... David

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  Long Term Release vs. rolling distro
Posted by: Coastie - 04-04-2014, 12:11 AM - Forum: Linux Lite Software Development - Replies (3)

What are the advantages of using a long term release like Ubuntu vs. a rolling distro for the basis of Linux Lite?

The more I read about Linux, the more confused I get. :-\

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  New to forum member
Posted by: ukdave - 04-03-2014, 09:01 PM - Forum: Introductions - Replies (2)

Hi have been a member of the linux distro community forum but as i only use linux lite now reckon i  better join the lite forum.
Hoping to be around for quite some time.
Thanks
David

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