Debian Configuration :: Only Single Core Detected On I686
Jun 22, 2011
Recently I was forced to "downgrade" my AMD64 Squeeze installation to 32 bit Squeeze. The installation was (obviously) made from scratch. Everything else seems to be working fine, but there is only one cpu core out of four detected. On AMD64 kernel all four cores were functional. Now what?
$ uname -srv
Linux 2.6.32-5-686 #1 SMP Mon Jun 13 04:13:06 UTC 2011
$ cat /etc/debian_version
6.0.2
$ cat /proc/cpuinfo
[Code]....
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Apr 1, 2011
i am running gigabyte GA-M68M-S2P and AMD sempron 2.7. the problem is when i try to run dual core. it will boot and run for 2mins then it crashes. single core runs perfect.
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Nov 3, 2010
I just loaded F14 on an old Dell Dimension 3000 with a dual core processor but only one is showing. Here's the output from top:
processor: 0
vendor_id: GenuineIntel
cpu family: 15
model: 4
[Code]....
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Dec 25, 2010
Could someone give a step-by-step tutorial on how to do this, for someone with no more than a basic understanding of navigating the OS?
I'd like to include architecture specific flags instead of the generic i686 ones if possible.
So far, my tests have revealed that Arch Linux runs faster than Debian several media apps. I initially thought this was due to the i686 optimization of Arch, but other mentioned it could simply be a kernel timer issue.
I know for a fact the differences aren't due to bloat, and I've installed both OSes from minimal install means. Only the absolutely needed dependencies have been installed.
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May 26, 2010
I Upgraded the system to 2.6.26-2-i686 doesn't boot:
error message on Grub is:
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May 5, 2011
I compile kernel with i686 architecture but I get linux-image-2.6.33.9-libre12.6.33.9-rt31_2.6.33.9-libre12.6.33.9-rt31-10.00.Custom_i386.deb. How I can do it ?
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Jul 10, 2010
I'm having an interesting problem. I have an AMD quad core and for some reason I can't install x86_64 packages only i686 it originally didn't bother me, but now that i've finally decided to install an ATI graphics card I bought off a friend before i was running fedora but i can't installthe driver for it.
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Jun 8, 2011
Only Single core active on quad core AMD when acpi is active.with acpi=offuname -aLinux dvip4 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 x86_64 GNU/Linux
Code:
cat /proc/cpuinfo
processor : 0
[code]...
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Aug 7, 2011
I have this package dependency question for a while. I have brand new Squeeze system. I selected desktop during installation. Gnome is default system but I turned off gdm3 and uses fluxbox as window manager. I understand if two packages are tied together funtionally so that removal of either package terminates one feature. Above cases, many small packages only depends on the core packages. The core packages work fine without games, other programs.
There are so many programs that I want to remove in the system. For examples, ekiga is a VoIP program that I never use it. When I tried to remove it using apt-get or aptitude, it suggests entire gnome packages will be removed also, which is illogical. The only solution I found is I need to manually remove the package files. I haven't tried it yet.
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Feb 12, 2016
I'm restoring an old TI Silent 700 terminal [URL] ... and have connected it to an RPi running the debian based Jessie release using a serial converter. After learning more than I wanted to about serial settings and support I now have it interfaced and communicating bidirectionally but have one last hurdle - proper support for a single case (uppercase only) terminal in agetty.
With the -U flag on it seems like the the login name is detected as needing conversion because lowercase login names work - but lower case passwords do not and once I get a bash prompt all input comes in as upper case. So the -U agetty flag only seems to apply to login name and is then forgotten (not passed on to login process or bash?) and various settings in stty like iuclc, xcase, iexten don't seem to work.
I'd really like to get this terminal working with native support but I'll also take a kludge of some kind (I've tried a tr pipe for example).
Here is what I think is the relevant portion of my systemd generator:
Code: Select all[Service]
ExecStart=-/sbin/agetty -U 300 %I $TERM
Type=idle
Restart=always
UtmpIdentifier=%I
TTYPath=/dev/%I
[Code] .....
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Feb 11, 2010
I'm running Debian Lenny. When I exit run level 1 (single user mode), the system automatically continues into run level 2. I have browsed the init scripts and have yet to determine how this "magic" is performed. I would be grateful if a local guru would point me to how the scripts automatically proceed into run level 2 when exiting run level 1
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Jul 23, 2015
I want to configure multiple virtual ethernet interfaces over a single physical ethernet interface (eth0) and for each virtual interface the MAC address must be unique and the IP address must be Static.Finally all the virtual interfaces must be able to communicate both internally and externally and the traffic should be captured using wireshark.
I need to have such kind of setup to communicate devices individually using one physical ethernet device.
Because I was fiddling with few kernel modules like MACVLAN and MACVTAP and successfully enabled those modules and rebuild kernel. Using macvlan and macvtap I can configure virtual interfaces with unique mac address and static IPs but while capturing packets using wireshark interfaces behave weirdly.
For example say on HOST machine I have 1 physical interface and created 3 virtual interfaces as shown below.
Interfaces :
eth0 (physical ethernet interface)
IP: 192.168.A.A
MAC: aa:aa:aa:aa:aa:aa
[Code] ....
First from above interfaces I started pinging eth0 internally from host machine in which it worked as usually.
Second I did same externally from other machine which is connected to the same network of Host machine, and this did work as usually.
Third I pinged first virtual interface veth0 both internally and externally and this also works and after that I did check source and destination MAC address using wireshark tool-where both showed up there respective MAC address.
Now triggers the issue, where I pinged second virtual interface same like I did for first one, but this time ping was success and where as in wireshark tool the MAC address for veth0 is picked by veth1. This is where I got stuck and this issue happened for all the remaining virtual interfaces.
I couldn't see any virtual interface showing their respective MAC address, as of the remaining except the first virtual interface has been picking the first veth0 mac address.
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Oct 1, 2010
As this thread [URL]... reached over thousand posts, it's obvious that these freezes (which actually boils down to keyboard and mouse not being listened to by X server, so "not working") hit large numbers of Ubuntu users. As that thread is already very large and hard to read I'd like to advance a hypothesis here : This problem occurs only on multi-core CPUs.
I've installed 10.04 on two machines: and old box with a Duron and new one with quad core. The old box runs just fine with 10.04. The new one - you know Has anyone exeprienced this problem on a single core machine?
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Jul 12, 2010
I am running CPU tests on a radio controller to determine max simultanious calls. A tool using top was developed so that we could get a good look at what exactly was happening on the process level, however we are mainly interested in one object running on the box.The box has a single core Celeron processsor running the Wind River Linux platform. The CPU usage from my object is frequently spiking over 100%. Doing some research online so far has led me to the fact that a multicore processor can do this however I have found no mention of a single core processor displaying this behavior.
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Apr 30, 2010
I tried installing the driver following the instructions in the link given below.
viewtopic.php?t=7949
But now also its now working either. After installing the outputs are given below.
[Code].....
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Feb 16, 2011
This must be a server related question, so i decided to give it a try!I installed the defaults of:
apt-get install apache2 php5 mysql-server
Then i installed Moodle 2.0 blá, blá ... It's working fine from localhost. When try to access this server from other host i get:
"incorrect access detected, this server may be accessed only through [URL] address,"
Apache is working fine because i get the "It work's!" message.
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Jul 15, 2010
How come openSUSE 11.3 is treating my processor as a single core now? On 11.2 it saw all 4 cores and the hyperthreading made it seem like I had 8 (obviously) but now it's only showing 1 core.
For the record I have a Toshiba A505-6034 with an Intel Core i7
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May 17, 2010
Using squeeze with a GeForce4 MX 440 video card (NVIDIA) I have a monitor (4/3 aspect ratio, 1024x768 usually), and a TV connected via S-video After installing the NVIDIA driver using the NVIDIA binaries I managed to have a cloned twin screen configuration working.
However, the monitor is (wrongly) detected as having size 1824x768 (aspect ratio is widescreen) Using system monitor, I can set the correct size, but only for one session; besides, the login screen too is messed up the xorg.conf file seems right: proper resolution modes are set; xorg.0.log too
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Jan 24, 2010
I am trying to install FC4 in my pc having WDC WD800JD SATA HDD. During the installation it shows that no HDD found. I have searched a lot but no driver are found for fedora core 4.
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Sep 7, 2011
I have now installed Wheezy on two different hard drives and in each case it seems only one CPU of my dual core CPU computer is recognized. System Monitor, Gkrellm and lscpu show just one when prior to the new install the old Wheezy showed both CPU's. I have put the hard drive into two other computers with dual core CPU's and all show just one CPU.
Interestingly System Profiler and Benchmark (hardinfo?) > Devices > Processors now show a large amount of processor infomation when with the old Wheezy I would only see both CPU's listed and nothing else.
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Nov 16, 2010
i got an error this kernel requires an x86-64 CPU,but only detected an i686 CPU� while installing fedora12 in virtual machine..........
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Jul 24, 2009
I'm currently using FC 9 - 2.6.27 x86_64. (In my Hp - nx6320 laptop with- Intel centrino Duo processor). I have downloaded linux-2.6.30.2. How do I install this with i386/i686 configuration set. All that I want is a 32 bit - linux-2.6.30, because NCTUns 5.0 works only with the 32-bit kernel. I have tried following:
Code:
make ARCH=i386 menuconfig
After this, I see the architecture set to "X86_32 = Y" in the .config file. But later, after I run
Code:
make bzImage
The configuration restarts asking to select Y/N for various packages and modules. I have no much idea on what to select and what not to, in order to retain X86_32 set. I end up with the new .config file with contents as below after the make bzImage command.
Code:
#X86_32 is not set
X86_64 = y
Again it is going to be built as a X86_64 bit kernel.
How to install the kernel as 32-bit along with the existing FC-9 64 bit kernel.
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May 3, 2011
I have a notebook where it appears a fresh install of natty has detected 2 screens as being present, and set them to be mirrored.
However, there is only one screen present.
It's a Hp 5320m, with a Intel HD graphics.
Here's what the unity test says:
~$ /usr/lib/nux/unity_support_test -p
OpenGL vendor string: Tungsten Graphics, Inc
OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile GEM 20100330 DEVELOPMENT
OpenGL version string: 2.1 Mesa 7.10.2
[Code]....
Here is what i see in monitors when i uncheck 'mirrored'
[URL]
If i disable either of these two monitors, then i lose the screen for both- oops.
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Jan 25, 2011
I will be relocating to a permanent residence sometime in the next year or two. I've recently begun thinking about the best way to implement a home-based network. It occurred to me that the most elegant solution might be the use of VM technology to eliminate as much hardware and wiring as possible.My thinking is this: Install a multi-core system and configure it to run several VMs, one each for a firewall, a caching proxy server, a mail server, a web server. Additionally, I would like to run 2-4 VMs as remote (RDP)workstations, using diskless workstations to boot the VMs over powerline ethernet.The latest powerline technology (available later this year) will allow multiple devices on a residential circuit operating at near gigabit speed, just like legacy wired networks.
In theory, the above would allow me to consolidate everything but the disklessworkstations on a single server and eliminate all wired (and wireless) connections except the broadband connection to the Internet and the cabling to the nearest power outlets. It appears technically possible, but I'm not sure about the various virtual connections among VMs. In theory, each VM should be able to communicate with the other as if it was on the same network via the server data bus, but what about setting up firewall zones? Any internal I/O bandwidth bottlenecks? Any other potential "gotchas", caveats, issues? (Other than the obvious requirement of having enough CPU and RAM).Any thoughts or observations welcome, especially if they are from real world experience in a VM environment. BTW--in case you're wondering why I'm posting here, it's because I run Debian on all my workstations/servers (running VirtualBox as a VM for Windows XP on one workstation).
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May 23, 2011
I just installed Debian lxde i686 and I do not see synaptic package manager?
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Dec 21, 2010
If I wanted to avoid installing certain i386 apps from the repository, could I somehow compile my own (generic compiling, or for deb packages) with an i686 architecture in mind?Would this be congruent with the rest of the Debian OS, or would the extra instructions cause instability (if even possible)?
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Aug 16, 2010
The Debian site says latest netinst images have i686 available. I only see i386, so does debian offer the i686 option during net install? Perhaps I won't see a difference between i386 and i686. 1.00 Ghz Pentium M on IBM thinkpad X40 with intel integrated graphics card
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Aug 8, 2010
K3B says that my drive supports DVD-R DL writing. K3B shows it only having 1 layer.dvd+rw-mediainfo shows
Code:
INQUIRY: [ATAPI ][DVD A DH16A6S ][YA16]
GET [CURRENT] CONFIGURATION:
[code]...
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May 25, 2010
as my laptop is getting older and slower, I deactivated the nice window effects. System -> propieries -> appereance -> no effects.But Ubuntu reactives them after the next reboot!Is there any configuration file or do I have to uninstall compiz-core complete?
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Apr 3, 2010
I have configured squid in a single PC to save bandwidth and to block some sites.It works fine,but the only drawback is if the user disables the proxy settings in the browser they can able to browse all sites..Is there anyway to force all my browsers to go through proxy??
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