[ubuntu] Resize ubuntu main partition topic

Hello everyone,
I've already messed up with partitions, so now im afraid of touching anything. I'd like to reduce the size of ubuntu on my hard drive. I thought about using a gparted live version of linux, then resize the mount point (that's how / is called, isnt it?) of the currently installed ubuntu partition. I've read this article about this: https://help.ubuntu.com/community/Ho...izingPartition
It should be data-loss free, and I dont have to resize or move any other partitions (swap and co), right?
Thanks for helping me out :)

[ubuntu] how to genrate multicast traffic for PUMA protocol in NS-2.35? topic

hello everyone,
I'm working on multicast routing protocol in Manet's. For simulation using the tool NS-2. I want to know how to generate multicast traffic for PUMA or any other multicast protocol. Is it possible with "cbrgen",if yes than how? if anyone have any info please help me.
I'll be really thankful.

[ubuntu] Sound Applet shows no devices topic

Sound works. I can see audio devices if I go:

lspci -v | grep -A7 -i "audio"

Also I can hear it. ...but the sound applet displays no sound devices so it would not appear to be a device or driver issue. It would appear to be directly realted to the mixer applet. Hm... I'll install another PulseAudio mixer and check results.

[ubuntu] printer trouble topic

Hi


I am using Ubuntu 14.04.


I made an error trying to upgrade a programme (tried to intall a 32-bit package on a 64-bit system, could that be it?) and as a result several things broke (related to python?). My installation of Google Chrome seemed to have disappeared, as did my printer. I got Chrome back. And now I can see my wifi printer online (SyncThru Web Service) and print a proper testpage from there. But if I try to print from a regular programme, the printer (Samsung Xpress M2825DW) appears in the print dialogue, but the machine just spits out endless white pages with code on them.


I cannot use system-config-printer ('fail to connect to CUPS server', 'CUPS print spooler does not appear to be running', etc) to reinstall the printer or check the settings.


Could someone possibly walk me through some steps to try to fix this? I have been using Linux for 10 years but am not a very technical person.


thanks

LVM Setup on an already installed Ubuntu gnome server topic

Hello everyone, I'm trying to set up an LVM on my File sharing server. The server has ubuntu 14.04 lts 64 bit running on a pentium dual core E2140 @ 1.60Z GHz with 1gb of memory (will be getting upgraded to 2 gb). The server is also running the latest version of Gnome. For drives right now I have 7 drives in the server:

Model: ATA IC35L04AVVA07-0
Size: 31.50 GB
Path: /dev/sda
File System: NTFS

Model: ATA IC35L04AVVA07-0
Size: 31.50 GB
Path: /dev/sdb
File System: NTFS

Model: ATA WDC WD400BB-60DG
Size: 37.27 GB
Path: /dev/sdc (this is the OS hard drive)
File Systems: sdc1 - ext4 sdc2 - extended sdc5 - linux-swap

Model: ATA Quantum Fireball
Size: 19.01 GB
Path: /dev/sdd
File Systems: sdd1 - extended (unallocated)

Model: ATA ST3250310AS
Size: 232.83 GB
Path: /dev/sde
File System: NTFS

Model: ATA WDC WD3200AAJS-6
Size: 298.09 GB
Path: /dev/sdf
File System: NTFS

Model: WD I HDS72 External
Size: 465.76 GB
Path: /dev/sdg
File Systems: sdg1 - extended New Partition #1 - lvm2 pv

I have no cd roms in the tower and no usb flash drives to do a live cd boot. what I want to do is first setup the group with sdd and sdg and move the files from the other drives to it (except the os drive) then I want to add the other drives to the group making it act as a drive with a little over a TB is there any way to do this without having to do a clean install or boot from a live cd? (I really don't want to do a clean install it takes a long time to get everything running correctly) if any other info is needed please let me know and I will get it for you. Thank you for your time and help :-) Christopher J. Crandall

Why do I need a ubuntu one account to download apps topic

While the usual tradition of linux distributions is to have repositories accessible to anyone, why do I need to have a ubuntu one account in order to download apps on the ubuntu store? While ubuntu has until now been very strong into providing open alternatives to mainline products, e.g. from microsoft or apple, this requirement is a serious threat to the open philosophy. I can't see any technical difficulty into not having accounts on the server side, and I am very worried about this.

[ubuntu] The system is running in low-graphics mode only when logging off user topic

I’m working on setting up Ubuntu 12.04.5 in a classroom environment here in San Antonio, Texas. We hope to replace several labs currently running Windows XP that connect to a Citrix farm. This version of Ubuntu was selected to be compatible with NetSupport software that teachers use to monitor a classroom.

The OS is installed on HP dc7700u and dc7600u computers. I followed online directions for creating a Windows 7-style Ubuntu desktop (looks and works very nice too). There are two user accounts on this system, one for Students without the rights to install applications (all games removed) and the other for Administrators with full access. On boot up, the Student ID is logged in with the option to not require a password (as seen below).




After having everything almost at the testing stage I came across a problem. I get a graphics error when I log off the student user to try to use the Administrator account. Up until this point, everything has been running great. As soon as I log off, the system locks up with “The system is running in low-graphics mode”, input device settings could not be detected correctly. The next option is “What would you like to do?”

1. Run in low-graphics mode for just one session
2. Reconfigure graphics
3. Troubleshoot the error
4. Exit to console login

In most cases the mouse and keyboard do not work. A couple of times when I could make a selection I have tried all options but nothing happened. I can power down the system and it boots into Student user without any problems.