General :: /etc/rc.local Behavior Different In Ubuntu Vs. Debian?
Apr 26, 2011
A rather obscure problem, clearly our understanding here is challenged! On ubuntu (10.04 & earlier) we boot our apps under a user account from /etc/rc.local which runs under root. First the boot script installs drivers and does rooty things, then we launch the executable under the "myaccount" account:
su myaccount -c startPrg.bash (Inside is the actual /mybin/myprg &; )and the program is left running (our goal of course) BUT in debian (lenny) the exit from su terminates its child, which also seems right.
Now confused..
1) How can we spin off a child from /etc/rc.local that executes under a user account, but is not terminated when the su exits?
2) Why does the script act differently on ubuntu vs. debian?
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Feb 18, 2010
Just got a pretty fresh install of Debian/XFCE. Both monitors work out of the box on my 8400GS. I was unable to find an option to change it so I can span is as 1 work space instead of having them mirrored.
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Sep 10, 2010
Using a Realtek 8111/8168b Revision 1 NIC on a desktop comp, it's being detected by Lenny, Squeeze, and Gentoo (09/02/2010) installers (all are AMD64 distro's being run on a dual core intel processor), the r8169 driver is being loaded automatically on all of them. However, at the moment the NIC is detected during the net-installs, it goes dead until power has been cut. The switch doesn't register it as being active, nor do any of the activity lights on the motherboard register it as being active.In Gentoo's setup I can run an ifconfig and see the NIC as eth0 as it should be, I can ping the loopback as well as a statically assigned IP address. However pinging anything else in the LAN results in timeouts, and anything outside of the LAN results in hosts not found.
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Aug 9, 2011
I've been using dhcpd for address assignments to PCs for a very long time with no issues. I recently upgraded from lenny to squeeze and now dhcpd seems to have new behavior which I can't seem to change. Here's what I want to do. First, I have a simple situation and don't want to get involved with dynamic DNS updates. I have host statements for each of my PCs and a range statement for cases where I install a new device and don't yet have a host statement for it. Previously, I could discover the ethernet address for the new device from the dhcpd log and add a host statement with an address of my choosing for the new device.
I'd then restart dhcpd and do something like reboot the device or issue an ipconfig /renew statement on the new PC. What would happen is that the old dynamically assigned IP address would be NAKed and the device would do a DHCPDISCOVER, etc. and get the new IP address I specified in the dhcpd.conf host statement. In squeeze, this no longer works. The client asks for the old address it got dynamically and the server just says yes. I can't seem to find a way to get it to NAK the dynamic address and use the new address I've specified in the host statement. I'd appreciate any enlightenment on how this is now supposed to be done. Here's my simplified dhcpd.conf file:
authoritative;
log-facility daemon;
ddns-update-style none;
[code]....
Note that the address here was assigned based on a previous range statement and isn't consistent with the above config file.
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Mar 13, 2011
I am running Debian testing with XFCE and have been trying various GTK email clients looking for something I like. So far I like Balsa but everytime I start the program, Debian asks for my gnome-keyring password. How do I kill this behavior?
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Dec 9, 2010
One of Konqueror's unique features is that i can name a local process as the action in a form. When i submit that form, the local process is executed. Very helpful for certain offline tasks. What would make it even better is if i could find a way to pass some data to that local process from the html page. This could be the content of a hidden input item, etc. Alternatively, if there is a way for Konqueror to create or update a local file with data from the html page, that would acheive the same end.
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Sep 27, 2010
What command would you use to read about the sync system call (not the sync command)? How would you read a local man page for sync that was kept in the /usr/local/share/man?
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Dec 9, 2009
I am trying to install tilp, a program for the link between a computer and a Texas Instruments calculator. I have downloaded all the packages to a local directory. I tried telling yum to install all the packages at the same time, though, the dependencies still fail to resolve (though they are all in the directory). I don't know if it would be safe to force install without the dependencies (even though I would install them later).
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Feb 19, 2011
I predominantly use Ubuntu at home, which means I am used to "highlight 'copies' and center click 'pastes'" (I believe this is true for all X-windows-sever machines, but I don't know). Unfortunately, that is not the behavior on the machines I use at work (I have a Mac and Win 7.). Is there an application which would let me imitate this mouse behavior for either of those OS's?
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Mar 3, 2011
Is there a way to imitate OS X behavior of opening applications in Linux?
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Jun 17, 2010
I am quite confused about the following description on fork. Could you please explain it ?The child process shall have its own copy of the parent's file descriptors. Each of the child's file descriptors shall refer to the same open file description with the corresponding file descriptor of the parent.For example, I am opening a socket and then fork. Now, does the child have a separate socket or is shares it with the parent. Does I have any impact on using it in child?
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Jun 14, 2010
How do I change the screen blanking behavior on Linux virtual terminals?
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Mostly I just want to change the timeout, but I'm also interested in other settings.
If it helps, one of my systems is running Ubuntu 10.04 with the stock graphics drivers. fbset shows the console using the radeondrmfb framebuffer device.
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Jun 19, 2010
I am used to using US International as my keyboard layout. However, the implementation appears to differ greatly between Windows and Linux (Gnome, in my case - may well be a GTK issue since GTK behaves the same on Windows).The layout uses dead keys, for example for keys such as ', ", ^, &c. allowing easy entry of characters with diacritics. On Windows pressing a dead key and then a key that has no pair associated results in the dead key's character (when paired with space) and the character from the second key. Example: Pressing ", a yields "ä", however, pressings yields "'s", as there is no pairing for ' and s.
Now, there is a language called English which makes frequent use of exactly those two characters and since it works on Windows to just type them as usual it's muscle memory for me now. Which brings me to my problem:On Linux (and GTK on Windows), there is a pairing for ' and s (among many others), resulting in Å› (which, in turn, leads to me frequently typing "itÅ›"). So typing "it's" requires me to type ', , s at the end.There are a few other combinations I'm used to that don't work. Among those is that for non-existant pairs simply nothing is the result. Typing "I'd" results in "I". Hitting one of those keys twice results in a non-spacing diacritic which breaks my habit of typing strings by first typing both quotation marks (which now result in a non-spacing acute accent or macron).
Long story short: None of the supplied US International layouts appears to function the same as in Windows - are there any that do work identically? Or any chance to configure it that way? While it may be nice to type an s with acute accent or non-spacing diacritics, those aren't exactly common needs for me.
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Sep 12, 2010
I am trying to modify the "Configure Window Behavior" settings so that a new KWrite window will have a default size and location that is not affected by anything I did to a previous KWrite window. I have found that "Force" does that; unfortunately, "Force" also locks the window in position, preventing me from moving or resizing it if I should want to. Is there any setting that forces a default window size and location but allows me to change it?
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Jul 1, 2011
As I recall in the days of DOS and routine use of command.com,the xcopy command had an option -- I think it was "/a".When xcopy processed a file, it would alter the state of the archive attribute such that multiple runs of the same command would catch whatever was missed by the previous run. A common use was to fill diskettes and similar small storage media.xcopy a group of files === rats, media fullxcopy catches more files === repeat ad libxcopy eventually catches the last remaining files
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Nov 15, 2010
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Is there a way I can modify top such that when I do:
% top
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For example I see initially:
chromium-browser
But would prefer to see:
/usr/lib64/chromium-browser/chromium-browser --type=plugin --plugin-pat
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Jul 26, 2011
I have a postfix mail server on ubuntu 10.04 lts behind a router. so all local users are fetching/sending mails through ms outlook using local IP. Sometimes when internet goes down and any mail send then it bounced back immediately saying domain not found. Can u please tell me how i configure to hold all mails in postfix server rather than bounce when internet fails and will pass through when restored the internet around 15-30 minutes?
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May 16, 2010
I'd like a way to see all of the devices on my local network and what their local IP address is. I recall that I used wireshark to troubleshoot a similar problem a while back, but it doesn't seem to have a way to see all of the devices- only the traffic. (I'd like to do this without having to physically interface with my router if possible, and I am in an encrypted network if that matters)
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Jun 28, 2011
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Feb 24, 2011
I have local repo as well the debian official repos enabled in the apt sources.list, but when i run the aptitude to install some packages, it doesn't use the local repo and downloading the same version of package again that is already present in the local repo, this is my local repo url: [URL]
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Jun 9, 2011
So i have this simple c++ program, which has an array of ints and a pointer to it. Then i have to change one element in the array. Problem is that on ubuntu(netbeans) it works the first time i change the element, then for the other times there is no change in the array after leaving the function.
First i thought it was a bug, but i tried the code on win(visual studio) and it worked like it should.
I don't understand what the problem is? Im not using any platform specific function(that i know of )?
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Aug 19, 2011
Let's get clear with all bin and sbin folders(from filesystem hierarchy standard):
So the question is: Why there are so many directories and what are the meanings of /usr/sbin, /usr/local/sbin and /usr/local/bin?
Many programs are distributed through archives and we have to build them from source code. Usually they have makefile so it's quite easy. This process involves creating files in usr/local/lib, usr/local/bin... usr/local/whatever without creating specific folders for a given program.
I think it's not right because if we need to remove the program we have to manually delete every of its files if the program's creator didn't take care of it.
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Mar 31, 2010
I have an exe-File called 'pas'.The file run wihtout problem when I call it from the same folder . For example:
$ ./pas
But when I call it from another folder, it does not run. For example:
$ software/pas
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Oct 11, 2010
Is it possible to map a networklocation as a local drive? Some software does not allow to fill in networklocations in the Save As box.
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Jan 6, 2011
I freshly installed debian lenny using the 5 DVD set that I downloaded from debian.org. I want to create a local repository for all packages that are available in DVD so that I do not insert the disc everytime I install a new software. I have searched various forums but not able to figure the right way to do it.
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Jun 16, 2010
Using serial terminal(emulated) to connect to linux box. In order to fix row/column count I added stty command in rc.local:
Code:
stty -F /dev/ttyS0 rows 56
stty -F /dev/ttyS0 cols 110
If I add it in redhat's /etc/rc.d/rc.local - it works fine. But if I add it in debian's /etc/rc.local - it doesn't work. I checked by redirecting some output to /dev/ttyS0 - rc.local gets executed and stty commands are executed also - but for some reason rows/columns dosn't change after I login. If I execute rc.local by hand - stty commands work.
why this works on redhat but not on debian ?
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May 17, 2010
Ubuntu 64 bit is installed on the hard disk with two partitions: one for Ubuntu, another is NTFS partition called Shared. Before upgrading to 10.04 Shared volume was available. To mount it, it was necessary to enter the password.After upgrading to 10.04, I see two volumes: Shared and Shared_. Places menu contains Shared item. When I click it, it opens without password, and shows /media/Shared_, with correct contents. Original Shared volume appears in the media directory:
Code:
root@alex-64:/media# ls -l
total 12
lrwxrwxrwx 1 root root 6 2010-04-21 19:49 cdrom -> cdrom0
drwxr-xr-x 2 root root 4096 2010-04-21 19:49 cdrom0
drwx------ 2 root root 4096 2010-05-09 08:25 Shared
drwx------ 1 alex alex 4096 2010-05-17 08:56 Shared_
Shared volume is empty. Can this be fixed? It is OK to work with Shared_ volume?
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Jun 3, 2010
I upgraded to Lucid from Karmic a few weeks ago. The upgrade went fine. Then I decided to move my exit, maximize, and minimize buttons to the right side. I used Ubuntu Tweak to do this. Since that time I have very odd behavior after I boot Lucid.The booted system comes up with an X for a cursor. There are no exit, maximize, and minimize buttons on my window bar. Finally, I can open a terminal, but cannot type anything in it.Sometimes I can get things back to normal by using Ubuntu Tweak to move the buttons to the left or right (depending on where they were before the boot). Sometimes I have to open System>Preferences>Appearance> and change Visual Effects from None to Normal or vice versa.I have tried metacity --replace (after getting the terminal window to allow me to type in data), but after I reboot, things are back the way they were. I have an Nvidia GeForce 7300 LE on board graphics card, and I am using the Nvidia current version driver. When things are working correctly, System Monitor shows a compiz process running but not a metacity process. Is this correct?
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Apr 12, 2011
I just tried uprgading from 10.10 on my daughter's pc to 11.04(beta) as we wanted to find out about Unity et al. I thought the upgrade went well but on reboot when the desktop comes up, it's all funky in behavior - mouse is jump, arrows don't reliably work the menus - odd background images show up in graphic blocks. Do you think I can salvage this, or should I am I stuck reloading back to 10.10?
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Mar 18, 2016
I am trying to stream audio from one machine to several others via pulseaudio.
Following a bit of digging, I configured the "sender" with:
load-module module-null-sink sink_name=rtp
load-module module-rtp-send source=rtp.monitor rate=48000 channels=2 format=s16be
..and the "listeners" with: load-module module-rtp-recv
Then, playing on the sender, and using PulseAudio Volume Control /Playback to set "Null Output", my listeners all start working as expected. The outstanding problem is that the sender is silent - nothing from its speakers. Perhaps not surprising after the "Null" setting above.
Is it possible to stream like this and also listen on the sender at the same time -
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