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FreeNX authenticates but no desktop on centos 5 ??
by Jeremy Gray 01 May '07

01 May '07

Hi all, I am new to CentOS and freeNX -- both look really awesome, a huge thanks to all the people making them happen. I am having a problem with freenx that appears to be specific to centos 5. my client authenticates but then no desktop comes up. however, when I connect to a similar machine running centos 4.4, I authenticate and the gnome desktop just pops up sweet as can be. I also have a vnc connection to my centos 5 workstation working, and can get a gnome desktop through vnc, and direct X11 connections are fine. the two nxserver machines have stable IP addresses, I have root access. the nxclient machine is a mac G4 PPC (which presumably makes no difference at all), with very recent download of the mac OS X client from nomachine. I followed the instructions for setting up freenx on centos 4.4 found here: http://linuxgazette.net/135/knaggs.html and it worked perfectly the first time I tried. the key steps were wget http://mirror.centos.org/centos/4/extras/i386/RPMS/nx-1.5.0-1.centos4.i386.… wget http://mirror.centos.org/centos/4/extras/i386/RPMS/freenx-0.5.0-10.c4.noarc… sudo rpm -Uvh nx-1.5.0-1.centos4.i386.rpm sudo rpm -Uvh freenx-0.5.0-10.c4.noarch.rpm plus a quick copy-paste of the client dsa key, and nxserver --adduser <me> For CentOS 5, I tried the yum-based instructions found at http://wiki.centos.org/FreeNX (which says that freenx only works with centos 4, and the bottom of page says "FreeNX (last edited 2007-02-08 23:38:36 by JohnnyHughes )" -- hopefully its just the wiki is out of date) I also tried adapting the above steps to use the centos 5 packages from http://mirror.centos.org/centos/5/extras/i386/RPMS/ freenx-0.5.0-13.el5.centos.i386.rpm 08-Apr-2007 11:00 66K nx-2.1.0-6.el5.centos.i386.rpm 08-Apr-2007 11:00 2.9M either way, I get authenticated but no desktop comes up in the X11 window on the client machine. (just to be explicit: using exactly the same client I do get a desktop on the centos 4.4 machine). While trying to connect, During this time, on the remote (CentOS) machine, its clear that something is happening, because "ps -ef | grep nx" on the server machine gives me root 5627 3378 0 10:38 ? 00:00:00 sshd: nx [priv] nx 5629 5627 0 10:38 ? 00:00:00 sshd: nx@notty nx 5630 5629 0 10:38 ? 00:00:00 /bin/bash /usr/bin/nxserver -c /usr/bin/nxserver nx 5771 5630 0 10:38 ? 00:00:00 sleep 60 jg 5800 5393 0 10:38 pts/1 00:00:00 grep nx I checked out a couple other things on the web on how to set it up and these did not help (they were very helpful, just not with my problem about the desktop not coming up). E.g., http://fedoranews.org/contributors/rick_stout/freenx/ I also noted other posts about freenx on this list, but they did not seem to be relevant However, I note that at http://wiki.centos.org/FreeNX is says that freenx only works with centos 4, which I am hoping is simply out of date, as freenx is shipped as part of centos 5. I saw a post today saying that freenx is supposed to work exactly the same on CentOS 5 as per instructions for 4. hmmm. I've tried uninstalling freenx on the centOS 5 machine and reinstalling. any suggestions appreciated! many thanks, --Jeremy

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Re: [CentOS] CentOS 5 Live CD
by Mark Rose 01 May '07

01 May '07

---- MrKiwi <mrkiwi(a)gmail.com> wrote: > > Mark, > > Can you please expand on 'primary os'? Do you mean you run > your day-to-day computing from a pen drive? Or you use > CentOS 4 as your primary os? > If the former is the case, i'd love to know more. > > > MrKiwi Actually, it is the former - at work, all the PCs are running a very locked-down Win XP install, so to bypass it and have the tools to actually do my job, I use my "Live USB". I basically followed the instructions posted in http://linux.web.psi.ch/livecd/usbdisk.html and use the CentOS Live CD iso. I used a 2G Lexar FireFly (1G partition formatted via FAT for the LiveCD and 1G /home via ext3). If I need to transfer files, I will copy them to the FAT partition. I hope this helps! Mark

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Re: [CentOS] CentOS 5 Live CD
by Mark Rose 01 May '07

01 May '07

---- Johnny Hughes <mailing-lists(a)hughesjr.com> wrote: > On Mon, 2007-04-30 at 11:20 -0400, Mark Rose wrote: > > Does anyone know if there are any plans to make a CentOS 5 Live CD, or better yet, if there is already one available? Thanks! > > > > There are plans to have one and we are testing it in QA now. Thanks for the info! I was able to make a live USB pendrive (Lexar FireFly) with the CentOS 4 Live CD, which I use as my primary OS, and plan on doing the same when the 5 Live CD is available. Mark

2 1

CentOS 4.4 and isa sound module
by Olaf Mueller 01 May '07

01 May '07

Hello, Please can someone tell me a url where to find a centos 4.4 kernel with isa sound support? Thank you very much. regards Olaf

1 0

Slow performance
by Ashley M. Kirchner 01 May '07

01 May '07

Hi folks. I'm posting this to both the Fedora as well as the CentOS lists in hopes that somewhere, someone can help me figure out what's going on. I have a dual Xeon 3GHz server that's performing rather slow when it comes to disk activities. The machine is configured with a single 160 GiB OS drive (with CentOS 5.0) and 4x500 GiB drives setup in a RAID-5 configuration. All drives are setup for 3.0 GiB SATA link, and the motherboard also supports that. Looking in dmesg when the system comes up, I see that reflected as well: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: ATA-7, max UDMA/133, 312581808 sectors: LBA48 NCQ (depth 0/32) ata1.00: configured for UDMA/133 scsi1 : ahci ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32) ata2.00: configured for UDMA/133 scsi2 : ahci ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata3.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32) ata3.00: configured for UDMA/133 scsi3 : ahci ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata4.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32) ata4.00: configured for UDMA/133 scsi4 : ahci ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata5.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32) ata5.00: configured for UDMA/133 scsi5 : ahci Now, I don't know what performance numbers *should* be, but on a 1.8 GiB copy on the RAID (cp from one location to another on the RAID), it gets done in just under 50 seconds. If I try to delete the folder afterwards (rm -rf FOLDER) it takes a few seconds to do so, however if I delete the CONTENTS of the folder, it does so within a fraction of a second (but then 'sync' takes a few seconds to catch up.) That same folder that I'm copying contains 452 jpeg files in it, ranging from 2.5 to 6.2 MiB. Doing some image processing on them is where it takes a long time. At the moment I'm doing a simple thumbnail creation with the ImageMagick suite (convert FILE -thumbnail "200x200>' `basename FILE .jpg`.th.jpg) and it takes upwards of 8 minutes to complete. The whole time it's running, 'top' reports the server load as follows: load average: 1.06, 1.00, 0.81 And the CPU usage is around 9%. Interestingly, if I run the same command and have it create .png instead, it takes longer, but I won't go there just yet. My question is, is this the expected performance on something like this, or should I be able to get better results? Is there something I should or could do to speed up disk based processes? Or is this something where it's more memory intensive and I need to look at adding more (right now it has 2 GiB of memory.) This problem is causing one of our web sites to time out because it's trying to process hundreds of image files and generate thumbnails, and it's taking forever to do that. So I'm starting at the bottom of the pile here, hardware. If it turns out the hardware is fine, and there's nothing else that can be done to speed it up, then I'll move forward to other possible culprits, such as the routines within the site scripts themselves... -- W | It's not a bug - it's an undocumented feature. +-------------------------------------------------------------------- Ashley M. Kirchner <mailto:ashley@pcraft.com> . 303.442.6410 x130 IT Director / SysAdmin / Websmith . 800.441.3873 x130 Photo Craft Imaging . 3550 Arapahoe Ave. #6 http://www.pcraft.com ..... . . . Boulder, CO 80303, U.S.A.

7 18

Motorola L6 phone contact manager...
by David A. Woyciesjes 30 Apr '07

30 Apr '07

Does anyone know of a Linux program, GUI preferred, for managing the phonebook list on the L6 cel phone? -- --- David Woyciesjes

2 1

setting up CentOS 5 with Raid10
by Ruslan Sivak 30 Apr '07

30 Apr '07

I would like to set up CentOS on 4 SATA hard drives that I would like to configure in RAID10. I read somewhere that Raid10 support is in the latest kernel, but I can't seem to get anaconda to let me create it. I only see raid 0, 1, 5, and 6. Even when I tried to set up raid5 or raid1, it would not let me put the /boot partition on it, and I though that this was now possible. Is it possible for me to set up the configuration I'm looking for? Russ

6 12

Centos 5 not shutting down
by Robert Moskowitz 30 Apr '07

30 Apr '07

From a terminal prompt I issue shutdown now Everything seems to be going well, I get: Telling INIT to go to single user mode. INIT: Going to single user INIT: Sending processes the TERM signal INIT: Sending processes the KILL signal sh-3.1# I still seem to be logged in, and at / oh, I was logged in as root.

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CentOS 5 Live CD
by Mark Rose 30 Apr '07

30 Apr '07

Does anyone know if there are any plans to make a CentOS 5 Live CD, or better yet, if there is already one available? Thanks! Mark

3 2

building cinelerra on CentOS 5
by Akemi Yagi 30 Apr '07

30 Apr '07

I have just built cinelerra on CentOS 5 x86_64 and thought I should share my notes here for people who need it but cannot wait for the package to become available on rpmforge/dag. - Install the src.rpm for FC6 - Edit the .spec file and change the line BuildRequires: OpenEXR-devel to BuildRequires: openexr-devel - Create a symlink: ln -s /usr/include/OpenEXR /usr/include/openexr - Run rpmbuild You need to have all devel packages required. The main problem I encountered was that the FC6 version wants the OpenEXR package and the one I could find for CentOS was all in lowercase. Then during the compilation, it refers to /usr/include/OpenEXR thus the symlink. I don't know the exact consequences this modification would bring about. For now, the rebuilt rpm installed on my system without a hitch and the program runs well. Akemi

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