CentOS 5 Hardware :: Maximum Number Of CPUs Supported

Oct 29, 2010

While searching for the maximum numbers of CPUs supported by CentOS 5 x86_64 I found the following page: [URL]. The question I have regarding the specified information ("64/255" logical CPUs) is, which number means what. Does this mean 64 real CPUs with a maximum of 255 cores/hyperthreaded CPUs or something similar or totally different?

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CentOS 5 Hardware :: Maximum Number Of CPUs Supported With 5 X86_64

Jan 31, 2011

While searching for the maximum numbers of CPUs supported by CentOS 5 x86_64 I found the following page: [URL] The question I have regarding the specified information ("64/255" logical CPUs) is, which number means what. Does this mean 64 real CPUs with a maximum of 255 cores/hyperthreaded CPUs or something similar or totally different?

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CentOS 5 Server :: What Is The Maximum Number Of Logical Volumes In A Volume Group

May 15, 2009

what the maximum number of logical volumes is for a volume group in LVM ? Is there any known performance hit for creating a large number of small logical volumes vs a small number of large volumes ?

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General :: Determine The Number Of Physical CPUs Under Both Windows?

Sep 9, 2010

When running cat /proc/cpuinfo under Linux, a variety information is kicked-back. For example:

> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

[Code]...

First, what does all of that actually mean? I see I have a processor 0 and processor 1. Does that mean Linux is reporting both cores of the CPU, or, since it is a VM, the two that I happen to have right now (even if they're on physically different CPUs)?

Second, how can I get a similar information dump form the command line in Windows? Third, is there a way using either platform to determine the number of physical CPUs versus total CPU cores?

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Ubuntu :: Selected Cylinder Exceeds Maximum Supported By Bios?

Aug 13, 2010

" Selected cylinder exceeds maximum supported by bios " I got this errot message when i tried to select Ubuntu ( 9.04 ) from a dual booting menu I dont know how to solve this problem

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General :: Maximum Number Of Partitions With EFI?

Jul 5, 2011

I was wondering what is the maximum number of partition on an GPT-partitionned drive under Linux. The GPT partition table can contain up to 128 partitions, but the device nodes for /dev/sda? (as described here, block device of major number 8) only allow /dev/sda1 up to /dev/sda15. Does that means that there cannot be more that 15 partitions on a drive, even on a GPT-partitionned drive?

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Ubuntu :: Maximum Number Of Users?

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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Installation :: Error 18: Selected Cylinder Exceeds Maximum Supported By BIOS

Mar 29, 2009

I just downloaded the Fedora 10 cd yesterday and decided to install it. I had a partition for Fedora on my system before but I'm not really sure what I did to it. It wasn't booting and it has been so long since I messed with it I just decided to reinstall with the latest (I think I was running F9 previously). So I pop in the live CD, run the install, and then reboot into Ubuntu. I modified my menu.lst to include the new vmlinuz and initrd versions, as well as the new UUID of the partition. Now when I reboot and choose Fedora from grub's menu I get this error:

Quote:

Error 18: Selected cylinder exceeds maximum supported by BIOS

I found this wiki which does a pretty good job describing the problem:

[URL]

However, I'm still unable to get this to work. According to many different sites out there this problem shouldn't exist on newer computers. Well, I just recently put a new motherboard into this box -- it's this one:

[URL]

According to their BIOS page the first release of this was late November 2008. Yes they have had 2 updates since then but it looks like those only serve to support AM3 CPUs (which I don't have) or update some audio playback issues. I seriously doubt I need to update my BIOS to get this to work.

Here's my fdisk:

Code:

$ sudo fdisk -l
Disk /dev/sda: 400.0 GB, 400088457216 bytes
255 heads, 63 sectors/track, 48641 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

[code]....

I can get Slackware 12.1 to boot (though it kernel panics during startup...not sure what I did to make it angry), but grub immediately fails when I attempt to boot Fedora. Here's the entry from menu.lst:

Quote:

titleFedora 10 (on /dev/sdb1)
root(hd1,0)
kernel/boot/vmlinuz-2.6.27.5-117.fc10.i686 ro root=UUID=178bc9f9-76ba-48aa-a588-de978cc1eee1 rhgb quiet

[code]...

I have verified that the vmlinuz and initrd are both correct. I put the UUID in there after running vol_id so I'm sure the entry is solid. I have tried making it "root=/dev/sdb1" which failed with the same error, and I even tried copying the fc10 vmlinuz and initrd files over to my Ubuntu partition (which controls grub) but for some odd reason the cp command takes a really long time and then I eventually get this weird error for initrd:

Quote:

$ sudo cp /media/sdb1/boot/initrd-2.6.27.5-117.fc10.i686.img .
cp: reading `/media/sdb1/boot/initrd-2.6.27.5-117.fc10.i686.img': Input/output error

I got the same error with the dd command too. So I was going to just try and copy the files to my sdb3 partition and then modify the menu.lst entry appropriately but that doesn't seem to be plausible at this point.

I have a motherboard that was just released about 4 months ago, an Athlon X2 6000+ CPU, and 4gigs of RAM. The drives are both SATA 300 drives...it's not like this is some old Pentium Pro and the BIOS just doesn't support large drives...this is a brand new system with a very recent BIOS version.

I have successfully quadruple booted all of these in the past, but that may have been prior to the new motherboard. So that makes me think it could be something related to the motherboard but the thing is so much newer than what I previously had, certainly that can't be the problem...can it? Then I remember that Slackware boots, so if it's truly something about how the BIOS can't access some file beyond a particular section of the disk, then it doesn't make any sense that it can book slackware. Fedora is the first partition, Slackware is the last and is like 200+ GB into the disk.

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Ubuntu :: Error 18 - Selected Cylinder Exceeds Maximum Supported By BIOS?

Dec 12, 2009

Error 18 - Selected cylinder exceeds maximum supported by BIOS

I am running Jaunty Jackalope on a new machine and after a recent update I got the following message when trying to reboot:

Error 18 - Selected cylinder exceeds maximum supported by BIOS

After reading some of the info on Grub error 18 I decided to create a separate boot partition, as suggested. However, when trying to use Gparted from the live CD to create some space ahead of /sda1, Gparted would run for a while and then crash. The crash message says:

"e2fsck crashed with SIGSEGV in qsort" So now I am stuck, unable to boot from HDD and unable to create new partitions (the other partitions on the disk work fine with Gparted). Could all of this be due to corrupt /sda1 partition?

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Hardware :: Finding The Maximum Supported Resolution Of Video Card By Using Xrandr?

Aug 25, 2010

I am trying to find the maximum supported resolution of my video card by using xrandr. My card is an NVidia GeForce Go 7300 (in a laptop). The official documentation does not list specific resolutions that are supported. My laptop display is detected as "AUO" in the NVidia X Server Settings dialog (Ubuntu 10.04 amd64) and has a native resolution of 1280x800. However, I would like to know what is the maximum resolution that I could use on a display with the VGA adapter irrespective of whether the laptop's display is on. This is what I get from xrandr: Screen 0: minimum 512 x 384, current 1280 x 800, maximum 2304 x 864 default connected 1280x800+0+0 0mm x 0mm

1280x800 50.0* 51.0 56.0 52.0
1024x768 52.0 50.0

[code]....

I am guessing the maximum width of 2304 would be for using TwinView with the laptop's 1280-width display next to a 1024 CRT or similar. Surely these cannot be the only supported resolutions. I would like to use a LCD display of width somewhere around 1600 pixels (in particular while turning off the laptop's screen so as to use the external LCD as the primary display) if possible.

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Fedora :: Maximum Number Of Files In Ext3 ?

May 26, 2010

Is there a limit to the number of files ext3 can support?

Reason I'm asking is because on one of my internal drives, I have around 750,000 files. The drive is 500Gb and currently using 150Gb... I noticed recently that when I try to copy a new directory or file, the transfer rate is extremely slow at times. It is sataII and sometimes it gets as low as 500kb/s (yes, kb!)

Would somebody please shed some light?

I noticed it might be related to the process gvfsd-metadata

I'm using Fedora 12 64-bit

The transfer is from an ext3 to ext3 filesystem.

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General :: Maximum Number Of IPs That Can Be Assigned To A Given Computer?

Jan 11, 2011

I really need to know this for a linux server, but since it also applies to client OSes, I figured the question should be posed here instead of server fault.

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Ubuntu :: Getting Maximum Number Of Clients Reached?

Feb 18, 2010

In the last week or so, I've frequently been running out of X server client connection slots and getting "Maximum number of clients reached" errors. For example, I'm getting it right now and I'm running 3 pterms, Chrome, and Thunderbird; I've even killed my panel. 'xwininfo -root -children' produces what seems to be an absurd number of X clients (150-ish, when it's able to make a connection), even immediately after Gnome/Xfce startup.

It doesn't take long. A day at most. I've had this system up and running for months, and this just started happening. I did install some X development libraries (x11proto-core-dev, libmotif-dev, x11proto-print-dev, and x11proto-xext-dev plus their dependencies) about two weeks ago, but this problem has not been happening that long. I've installed other packages, but nothing that would seem to have any relation to this problem. I've logged out and in, rebooted, and changed from Gnome to Xfce, and none of the changes helped.

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General :: Maximum Number Of Files Per Folder?

Apr 28, 2011

I would like to ask you if there is any maximum allowed number of files per folder in linux (without risking it to lose everything). I am using openuse 11.4 with latest kde (4.6?).

I am trying something fast and dirty and it might be that one folder will contain like 10^6 files.

Is there is anything I should be warned about that?

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General :: Find A Ip Address Having Maximum Number Of Ram Available?

Jun 22, 2010

I have a file called abc.txt which has following contents.

10.180.8.231=31608
10.180.8.232=29011
10.180.8.233=31606

[code]....

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General :: Know Maximum Number Of Logical Partition?

Sep 11, 2009

I'd just like to know the max number of logical partitions an extended partition can hold. Is that number different for IDE and SCSI hard drives?

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Server :: Maximum Number Of Hard Links?

Dec 8, 2010

I have a 32-bit Linux server with an ext3 file system. Is there any kind of upper-limit to the number of hard links I am allowed to use? (Per inode...? Per directory...? Per filesystem...?) And (just out of curiosity) would this be any different if I had a 64-bit machine or a different file system?

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Slackware :: X11 - Maximum Number Of Clients Reached

Feb 21, 2011

I have done nothing with the system, but starting this morning, i experienced a strange condition on my desktop. I'm unable to open any applications at all. It will close instantly.

When i tried to run from terminal, it will give me an error like this:

Quote:

I checked using

Code:

And i got around 234 which is too much that it takes almost all of the open files allowed. Logging out to text and brings back X will solve the problem, but it's only a temporary solution until X opens more sockets again. I'm running -Current (32 bit)

It seems that there's a hackish solution in here: [url]. Dunno whether it's a nice solution or not, but i'm willing to try it.

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Ubuntu :: Increasing Maximum Number Of Applications In Browser?

Dec 28, 2010

I just installed maverick on my son's netbook, and so far we like the new unity interface. The main issue is that there seems to be a maximum number of apps that can be listed under any particular category in the applications browser. So for instance when he goes to his "Games" category, it only lists applications up through S (he has a lot of games installed).

So far I haven't found a settings panel for unity. There has to be a way to bump up the maximum.

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General :: Maximum Number Of NICs That Be Teamed With Redhat 5?

Mar 4, 2010

the maximum number of NICs that be teamed with Redhat 5?

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General :: The Maximum Number Of Characters And Rows In A Database?

Apr 18, 2010

Is the maximum number of letters a database table column can contain 255?and is it a bad idea to build a table with about 15 columns?

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Software :: What Is Maximum Number Of Bytes Is Possible To Send From Udp Socket?

Oct 1, 2010

I am created one udp socket. i want to send the data(bytes) to another PC.i need to send 614400 bytes of data. while sending it saying error like" message is too long ". so what is the maximum possible data can i send from a socket?

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Debian Configuration :: Maximum Number Of Virtual Network Interfaces?

Feb 11, 2010

What is the maximum number of virtual network interfaces possible?I would like to create around 300 or so. This is needed to simulate a 300 node network.

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OpenSUSE Install :: Maximum Number Of X Display Failures Reached?

May 4, 2009

I tried ubuntu for a few weeks, but I couldn't get the nvidia drivers to work, I tried everything. So, I got sick of that, and went to download OpenSuse, which seems to be even nicer (..... ) I downloaded the 11.1 liveCD (gnome) from here. I nicley got the welcome screen, and the option screen (liveCD, check errors etc.). I chose LiveCD and it started booting, I got the splash screen with the loading bar, and after it completely loaded, the screen turns black with a lot of messages and at the end:

Code:
GdmLocalDisplayFactory: Maximum number of X display failures reached: Check X server log for errors.
Great, I hoped for better luck after Ubuntu..
My sys. specs:
Asus F3Sc 32bit
Intel CentrinoDuo

[Code]...

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General :: Maximum Number Of Clients ReachedThunar: Cannot Open Display

Jul 4, 2011

I with one problem to open files on terminal. By example, I open the thunar on terminal, see the error:

gustavo@universe /media/montagem $ thunar
(process:7902): Gtk-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
Maximum number of clients reachedThunar: Cannot open display:
gustavo@universe /media/montagem $ ^C

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Fedora :: 14-Maximum Number Of Clients Reached - Unable To Open Display ?

Nov 6, 2010

Ever since upgrading to Fedora 14, my system has been almost unusable. I can only have a few windows of anything open before I start getting messages about:

Maximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedMaximum number of clients reachedxwininfo: unable to open display ':0.0'

I am unable to open any new windows then and lots of programs crash.

When things are still running correctly.

A few minutes later:

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Red Hat :: Centos 5.3 - 2 CPUs Are Missing On AMD Phenom II X4

Mar 12, 2010

Not so long time ago I have installed Centos 5.3 on my AMD Phenom II X4 server (I am hosting game servers on it). Only today I noticed, that cpuinfo shows me only two CPUs. I watched for the info in the dmesg and found there that the system boots up only 2CPUs.

Here is some info from the dmesg:

Quote:

Linux version 2.6.18-164.11.1.el5 (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Wed Jan 20 07:32:21 EST 2010
Command line: ro root=/dev/VolGroup00/LogVol00
ACPI: Local APIC address 0xfee00000

[Code]....

Am I correctly understand that something wrong in BIOS? Or it is something else?

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Red Hat / Fedora :: Centos 5.3 - 2 CPUs Are Missing On AMD Phenom II X4?

Mar 12, 2010

Not so long time ago I have installed Centos 5.3 on my AMD Phenom II X4 server (I am hosting game servers on it). Only today I noticed, that cpuinfo shows me only two CPUs. I watched for the info in the dmesg and found there that the system boots up only 2CPUs.Here is some info from the dmesg:
Linux version 2.6.18-164.11.1.el5 (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Wed Jan 20 07:32:21 EST 2010

ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 0:4 APIC version 16

[code].....

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Aug 5, 2010

Immediately after the grub menu disappears I get the following error msg: Error 18 Selected cylinder exceeds maximum supported by BIOS. Sometimes the grub options come up again (in Text mode) ...all works fine Sometimes just start via "Failsafe", reboot...all works fine. What is happening here and what would be the right procedure to avoid this happening again.

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Fedora :: XDMCP Fatel Error "Session Declined Maximum Number Of Open Sessions"

Mar 20, 2010

I am using Fedora 12 and i have enable XDMCP i have boot client with dhcp all is going well but when remote user logout than remote client display XDMCP: fatal error: Session declined Maximum number of open sessions. and after that i have reboot Fedora 12 server than it will work but after logout it will again create same problem.

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