Ubuntu :: Adding Additional Users Causes Large Number Of Errors?
Jun 29, 2010
I'm running 64-bit 10.04, upgraded from 9.10. The problem I am experiencing is that any user accounts aside from my main account are problematic. This includes any accounts I add, as well as the GDM guest session.The specific problems that I have thus far experienced are as follows:
1. The desktop loads often improperly. In the latest instance of this the graphics on the right side top panel were randomly chopped-up, leaving parts of my clock on either side of the volume control, among other things. 2. If I make ANY customizations to the desktop at all, the desktop takes nearly a full minute to load on log-in. 3. Flash videos don't work properly on Firefox. Sometimes they only play after refreshing a page, often they will not load at all. Also, attempting to load or play a flash video will sometimes causes Gnome or Firefox to crash. 4. (And this is the one that REALLY has me stumped) Whenever I log into my main accountant after logging out of another account, the IBus control appears in my system tray.However, when I open the IBus preferences the associated check box is (and has always remained) unchecked.Not sure where to go with this one. More than anything, the IBus bug makes me unsure of where to even begin looking for the problem.
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Jun 24, 2011
in terminal: if var = 2 and we write the file name "name$i" it would be "name2" but my file name is "name02" (in fact I wanna have a 'for' loop on about 50 files named: a01, a02, ... , a50)
is there any way to make a 2(n) digit number with additional zero(s) like "%02d" in C ?
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Sep 10, 2010
I've got a laptop I use for various things. I have one SATA HD with a number of partitions on it. It looks like this.
sda2 = System Reserved (Flag=boot)
sda3 = Windows 7
sda4 = extended
sda5 = Ubuntu
sda6 = WinXP
I started off with Win7 on there and added Ubuntu. Everything went fine and Grub added Win7 and I could boot to both. Since then I had to add WinXP. That wiped out Grub which I read it would. I tried adding Grub back which was unsuccessful so I just reinstalled Ubuntu which re-installed Grub, but not Win7 doesn't boot from the menu when I select it. Since then I've been trying to add Win7 and WinXP back into Grub with zero success. In addition I add the following which did not work.
[Code]...
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May 21, 2010
i had 1 server and its hostname is resolving fine.
i purchased 1 vps and its hostname isnt resolving.
for server1 say hostname is server1.domain.com
and for vps i add server2.domain.com
and when i ping my server2.domain.com i get Host Unknown error.
do i add Hostname and make it resolve in VPS.
i want to use hostname like server2.domain.com.
i want both server to have common domain name but diff hostname.
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Mar 4, 2011
This is what I have currently running.
Code:
iptables -A INPUT -i lo -j ACCEPT
iptables -A OUTPUT -o lo -j ACCEPT
iptables -A INPUT -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
[code]...
How do I add this to the ruleset, without doing the whole thing over again?
Code:
iptables -A OUTPUT -d 10.3.0.0/16 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
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Jun 16, 2010
I've recently installed Ubuntu 10.4 - and used it quite successfully as the adminstrator user. But when I add additional users they can't login - to be exact, their password is accepted, and they get a screen with nothing except Ubuntu's pink/purple background.The mouse pointer moves around but clicking the mouse does nothing.
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Dec 6, 2010
in my middle of script i am using tar command to tar some 1000 images and size of each image is 5MB.
all the images are provided as argument as tar -cvf file.tar <all images as argument>
but my tar file file.tar does not contain all the images.
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Feb 23, 2010
I used 9.04 for months and it work fine before restarting my PC. After I restarted my PC, the memory consumption takes up to 4.2 GB after login. However, I cannot find any process that consume such large number of memory.
[code]....
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Jul 20, 2010
This problem is not exclusive to Ubuntu, I've experienced it in Windows and OSX as well, but it seems that almost every time I transfer a large number of files (i.e. my music collection) between my desktop computer and laptop via my external hard drive, I end up losing files for no reason. I usually don't notice the files are missing until later on, because I am never informed of any data loss. Now, every time I make a large transfer of files, I just do it two or three times to ensure that I don't lose any files.
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Feb 21, 2011
We recovered a large number of files from a HD I messed up. I am attempting to move large numbers of files of a type e.g. .txt .jpg , into a folder by type to more easily sort through them.
Here are the commands I have mainly been trying with various edits:
Code:
Code:
So far the most common complaint I have gotten "missing arguments to execdir".
This is on Ubuntu 10.04
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Feb 10, 2010
I've a directory containing around 2.8 lacs of files. I want to move them to another directory.If I use cp or mv then I get an error 'argument list too long'. If I write a script like
for file in ls *; do
cp {source} to {destination}
done
then because of ls command , its performance degrades.How can I do this?
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Mar 15, 2011
I am facing problem in copying a large number of file 18 lakh (18,000,000) files from my personal hardisk to another hardisk each file is very small and size of folder is around 3.95 GB copying files using copy given by Windows is frustrating and I am not even able to compress file its giving me error that its not readable.And problem is I am not able to open this drive in Linux it showing me error there saying do diskchk in Windows and Windows disk check is also not able to repair this drive and goes into some mode unsolvable.Is there any way to open disk with error to open in Windows and if not any way I can copy data faster?ERROR: Disk labled EDU is corrupt go to windows and chkdsk /f there and reboot into window 2 times.
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Jul 28, 2011
I have a large number of log files, on a linux box, I need to cleanse sensitive data from before sending to a third party. I have used the below script on previous occasions to perform this task, and it has worked brilliantly (script was built with some help from here :-)
#!/bin/bash
help_text () {
cat <<EOF
Usage: $0 [log_directory] [client_name(s)]
EOF
[Code]...
However, now one of our departments has sent me a CLIENT_FILE.txt with 425000+ variables! I think I may have hit some internal limit. I have tried splitting the client file into 4 with around 100000 variables in each, this still doesn't work. I'm loathe to keep splitting though as I have 20 directories with up to 190 files in each directory to run through. The more client files I make, the more passes I have to do.
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Aug 17, 2010
I understand that chroot is usually used to provide security, however, for my issue, security is a big don't care. I am very new to using chroot and don't fully understand how the chroot'd env works.
problem: Trying to use a vendor supplied cross compile environment. The environment runs as a chroot'd env and works just fine. I have a large number of additional modules that I wish to compile in the chroot'd environment. FYI, these modules are also (succesfully) compiled for other targets not using chroot'd env's. Copying the source files into the the chroot environment is not an option (don't have hours to wait for copies to finish and it would break the make system). Having them live in the environment is also not an option (the chroot build is a tiny part of the build process and we cannot revamp our entire source tree to accommodate it).
I am looking for a way to have the compiler in the chroot'd env have access to a path that is outside of the env and typically higher up in the same path that holds the chroot'd env. I have tried soft links (they don't work as expected). Hard links only work for single files and there are 10's of thousands of files that would need to be linked. I am not sure how I would go about exporting the additional files and then mounting the exported files in the chroot'd env (or if that would even work).
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Feb 17, 2010
I have a 50000 line(ish) set of records in a file. I have another file where I have filtered out all the line numbers for those which have an error of various types. e.g column count, field type etc. I want to get all those lines into a separate file so I can sanitise them. There are abt 3-4000 of them.
How can I access those lines which I want to isolate into a single file? I have all the usual linux stuff available and a bit of understanding of regexps.
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Jan 24, 2011
i've got a select based application that wants to support a large number of mostly idle connections. the code is java and works on windows, suse enterprise linux, mac os x. it does not work on centos 5.5 (32-bit, 2.6.18 kernel, 1G of memory).
i've read and followed the directions in various articles about tuning linux for large numbers of connections (including the C10K problem), and gotten the number of sockets up to 3200.
these didn't make any apparent difference:
[URL]
on windows, i can get up to around 78,000.
on suse enterprise linux (a few years ago), i got up to 90,000. that's where i got bored and stopped.
on my mac laptop with os x (snow leopard), i got up to 10,500.
i have used ulimit -n 10240
my current goal is 10k sockets.
the test is that i'm opening one socket at a time until it fails. when it fails, many of the sockets which have already been opened also fail, in one giant cascade. sounds like a buffer / memory problem.
each group of 64 sockets gets a thread to manage select calls for them. thus i'm only using around 61 threads total when it fails.
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May 28, 2011
I have the standard problem of trying to count a large number of files in a directory (>100k)
I have tried: ls ~/user/images/* -l | wc -l and find ~/user/images/* -maxdepth 1 -type f | wc -l
In both cases, I get the argument list too long error message.
I have tried using xargs but I can't seem to get it to work right.
The command
returns a valid answer but it includes all the subdirectories in the file count.
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Nov 18, 2010
I'm trying to extract the sender id from a fairly large number of files and am having trouble assigning variables from a file. Here is what I have so far, (which is fairly kludgy I know, but it's been some years since I've done any scripting or programming, and I find that I have lost the knack to a large degree).
[Code]...
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Apr 6, 2009
I am attempting to upgrade a system from 4.7 to 5.2 using a (now) DVD drive attached to the onboard IDE. Originally I had tried using a remote NFS image and a USB stick but I thought maybe there was a problem with the image. I can get up to the point of the installation of selecting the keyboard for the system and then it freezes and never goes any further. It doesn't appear to be a kernel panic since I can still switch between consoles.
I've got an MSI K9NGM2-FID with 14 drives in it. It serves as a file server for our backup server. It's got a secondary 4 port Silicon Image SII 3114 SATA card using the sata_sil module, and an old IDE Promise FastTrak TX2000. Technically I could have 16 drives but the 750W PS is walking the fine line on tripping it's self-breaker with the 14 drives and 7 fans. I would like to NOT have to disconnect all of this to do the upgrade.
I thought maybe that running the install using the "noprobe" option would help so it didn't detect and load the modules for the Silicon Image or the Promise cards and detect all of the drives but it still gets stuck on the step after selecting the keyboard. The installation info console and the dmesg console don't really provide any useful information. The installation console says:
INFO : moving (1) to step welcome
INFO : moving (1) to step language
INFO : moving (1) to step keyboard
INFO : moving (1) to step findrootparts
And the last lines of the dmesg console says:
<6>device-mapper: multipath: version 1.0.5 loaded
<6>device-mapper: multipath round-robin: version 1.0.0 loaded
<6>device-mapper: multipath emc: version 0.0.3 loaded
Is there a hidden "debug" option that will turn on a lot of extra logging?
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Sep 28, 2009
I have on my windows machine several hundred files that are a format of .nc .ncs for a CNC machine. I need to convert them to txt which is something as easy as opening in notepad and then saving as .txt but there are so many that this kind of action would take way too long.
The reason I am writing the linuxquestions is because I would feel more comfortable in loading a live CD and using some sort of terminal command to do this than I would to download one of the many "freeware" type programs I have found for windows (even more so since I have had a root kit before and had to start all the way over to get rid of it).
I need to know:
1. Is this possible to do with the terminal without super advanced knowledge.
2. Can one please point me in the right direction; something to read or an example
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Sep 18, 2010
I want to move files from a $SOURCEDIR to a $DESTBASE/$DESTDIR. Under $DESTBASE there are many directories, and I need to test beforehand if a file from $SOURCEDIR already exists in any of them.
This is obviously extremely slow, and the real use case involves dozens of dirs and thousands of files. Creating a temporary "index" file for the find command (instead of running it every iteration) speeds it up a little, but it's still very clumsy.
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Dec 11, 2010
I use Audacious to play my music... But every time I want to add my music it crashes... even when I do it in batches. Is there somewhere I can find logging to see what the problem is?
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Jan 7, 2011
How many users is it possible to set on Ubuntu 10.10? I have an Edubuntu LTSP system for a school (10 clients) and I wish to setup an user for each student/teacher (about 200).
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Dec 4, 2015
I use Debian 8. My discrete GPU is nVidia GT 640M. My graphics driver is nVidia proprietary driver v. 340.65. I installed bumblebee recently following [URL] .... and no updates are available. glxgears runs fine with primusrun.
When I run
Code: Select allprimusrun vlc
My computer powers off immediately like it was disconnected from all power.
When I run
Code: Select allprimusrun totem
and open a video, it plays with about 1 fps.
I have
Code: Select allrcutree.rcu_idle_gp_delay=1
appended to the GRUB_CMDLINE_LINUX_DEFAULT line in my /etc/default/grub file. In my /etc/bumblebee/bumblebee.conf, I have
Code: Select allDriver = nvidia
KernelDriver = nvidia-current
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Aug 29, 2010
I have been having a lot of trouble lately with installing from CD/DVD. The DVD reader/writer on this laptop is new. Nevertheless, trying to install Ubuntu onto an exernal HD, I get 'input output error on sr0 logical block (a large number) After a long time the booting proceeds to a point, but I never get the actual installation started, and have to shut down manually.
The CD is fine, says the Ubuntu-checker. I just installed using my sons laptop, and there was no trouble. Question: does this indicate a motherboard failure? A memory block damaged? Do you know of a diagnostic tool I can use to check the reading of a CD/DVD?
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Apr 10, 2010
I have a very large data file, with 3 numbers in each line, ex. 3 4 5 ; 6 7 8.I want to add two numbers (0 and 1) at the end of every line, and a string at the beginning of the line. Does anyone know a efficient way to do so?
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Jun 16, 2011
I am using the diff command with the -r option, to compare a large number of files and files in subdirectories. My main interest is to find out which files have been changed, and not what the actual changes are, and since a lot of files has been changed, it would be a lot easier to view the file names only. Is there and option for diff that might do this, or does there exist a similar tool/command that could do the job?
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Apr 19, 2010
I've compiled and added a kernel in Gentoo before. It doesn't seem to go quite as smoothly in Kubuntu 9.10 These are the steps I followed: I unpacked the kernel in /usr/src and ran make && make modules_install succesfully. Then I copied the kernel in arch/x86/boot/bzImage to /boot/bzImage-2.6.32 This entry is the one given by Kubuntu:
Code:
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
[code]....
I just read the script that update grub uses. Changed the name of the kernel from xyz to vmlinuz-2.6.32-generic and it worked.
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Apr 17, 2011
When i create a new user i want this user to have a public_html directory created in their home.
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Oct 25, 2010
Just noticed this, when I am logged into OpenSuse 11.3 under my default user (autologin) I have 3 of the same user logged in, eg when I run top it shows 3 users and when I run the users command it shows the same user 3 times. Is there any reason for this? Do I need to investigate this at all?
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