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CentOS 6 xhci_hcd USB 3 Support
by Kirk Bocek 21 Jul '11

21 Jul '11

I'm struggling with the xhci_hcd driver trying to get a NEC Corporation uPD720200 USB 3.0 Host Controller working under CentOS 6 x86_64. I've documented my efforts in the forums: https://www.centos.org/modules/newbb/viewtopic.php?topic_id=32237&forum=57 If anyone has any experience with the xhci_hcd driver, please share. Thanks, Kirk Bocek

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There is no One True Solution
by Devin Reade 21 Jul '11

21 Jul '11

Folks, in many recent threads this pattern has been happening: OP: Any suggestions on how to do <something>? Responder 1: Look at <solution1>. Responder 2: Look at <solution2>. Responder 3: Look at <solution3>. Responder 4: It doesn't work for me / I don't like that / it's a stupid solution / etc <conversation degenerates and/or flamewar ensues> There's nothing wrong with comparing / contrasting different solutions, but can we please try to remember that every circumstance is different and that just because someone suggests a solution it doesn't mean that it's the best for everyone? Ultimately, only the OP will be able to figure out what works best for him but having alternatives can help him get there. IMNSHO we, as professionals, should have lots of tools in our toolboxes, understand their pros and cons, not only in isolation but as they would apply in the different environments in which we find ourselves. If you have observations about a solution based on experience by all means share them (but please qualify the circumstances in which they apply). If you don't, file the solution away in your meatware for future reference. But if you hear about a solution and it doesn't seem like a good fit for your particular circumstances, and you're not the OP, can we please stop hearing the "but it doesn't work for *me* in these slightly different circumstances" comments? Devin

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OT: [opensuse-offtopic] Microsoft struggles to get Hyper-V drivers in Linux kernel (fwd)
by Keith Roberts 21 Jul '11

21 Jul '11

Not too sure what to think about this, considering M$'s track record with OSS and other competitors. Kind Regards, Keith Roberts ---------- Forwarded message ---------- To: opensuse-offtopic <opensuse-offtopic(a)opensuse.org> From: Basil Chupin <blchupin(a)iinet.net.au> Subject: [opensuse-offtopic] Microsoft struggles to get Hyper-V drivers in Linux kernel The company has ramped up kernel contributions in hopes of adding Hyper-V drivers, which it has worked on for more than two years Microsoft <http://www.networkworld.com/subnets/microsoft/> isn't exactly dumping Windows <http://www.networkworld.com/topics/windows.html> for Linux <http://www.networkworld.com/topics/linux.html>, but it has become one of the busiest contributors <http://linux.slashdot.org/story/11/07/16/2316251/Microsoft-Developer-Made-t…> to the Linux kernel. Microsoft's attempt to get Hyper-V drivers into the Linux kernel has taken longer than expected, having begun in July 2009 <http://www.networkworld.com/news/2009/072009-microsoft-linux-source-code.ht…>, so Microsoft is apparently trying to speed up the process. Microsoft was the fifth-largest corporate contributor to Linux kernel version 3.0, open source author and computer scientist David Wheeler writes in his blog <http://www.dwheeler.com/blog/2011/07/14/#microsoft-linux-author>. [Full story] http://www.infoworld.com/d/applications/microsoft-struggles-get-hyper-v-dri… -- Paradise is like Hell and neither is too far from you because both are creations of your mind and therefore both are already inside you. -- To unsubscribe, e-mail: opensuse-offtopic+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-offtopic+help(a)opensuse.org

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MySQL ERROR - UNKNOWN_MYSQL_USER
by Keith Roberts 21 Jul '11

21 Jul '11

This is strange behavior because as soon as I start mysqld with a clean error log, I get the following messages: 110720 21:38:47 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.5.14-log' socket: '/var/lib/mysql/mysql.sock' port: 2500 MySQL Community Server (GPL) by Remi 110720 21:38:48 [Warning] Access denied for user 'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO) The strange things is, AFAIK there are no clients trying to connect to mysql. I shutdown a mysql CLI monitor I had running, and did the restart again. So I'm just wondering why I get this message, when AFAIK there is nothing that should be trying to connect to mysql - unless it's a server daemon running somewhere? Has anyone else come across this funny error message? Kind Regards, Keith Roberts ----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] -----------------------------------------------------------------

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Bug in 6.0 i386 Basic server install...
by John Doe 21 Jul '11

21 Jul '11

Hey, I tested centOS in vmware player (512MB, 1 IDE disk) and bumped into a post install failure to boot. While the minimal install works all the way, the Basic server one fails at the first post-install boot with following: modprobe: FATAL: Could not load /lib/modules/2.6.32-71.el6.i686/modules.dep: No such file or directory ... No root device found ... Boot has failed, sleeping forever I used the same partioning scheme as the minimal that is working fine... /boot ext4 sda1 swap on sda2 / on sda3 Tried with a SCSI disk image, and Basic server works fine... Known issue with IDE? Thx, JD

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2 questions on CentOS firewall
by Timothy Murphy 21 Jul '11

21 Jul '11

I'm running CentOS-6 on an HP MicroServer with a Billion 5200S modem/router connecting to the internet. I'm running the standard CentOS-6 firewall on the server. (1) I can open port 22 on the Billion, allowing me to ssh in from outside. But for some reason I cannot ping the same address from outside. (I can ping it internally.) Why is this? I'm not sure if the problem lies with the router or the server? There does not seem to be any explicit rule on either to allow ICMP packets through. (2) I have a Linksys WRT54GL WiFi router attached to the server, to allow access to the internet from laptops. This works fine. But I was surprised to find that when I turn OFF the firewall on the server this stops access to the internet on laptops. (I didn't test to see if re-booting the laptop would solve this.) Can disabling the firewall actually prevent some linkage? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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Changing the size of the swap memory
by John J. Boyer 21 Jul '11

21 Jul '11

When I first installed my CentOS system the machine had only 1 GB. the swap memory was set to 2 GB Now the machine has 4 GB but swap is still 2 GB. With that much memory maybe it doesn't matter, but it sure looks odd. Is there any way to change it? Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities

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tripwire alternative
by Nguyen Vu Hung (VNC) 21 Jul '11

21 Jul '11

Hello all, Years ago, I used to work with tripwire for system monitoring. Last time I checked with "yum search tripwire", there is no hit. IIRC, it used to be packed by default on older Redhat distros. Any suggestion for an alternative of tripwire for my CentOS 5.6? Cheers, -- ********************************************************************** Viet Nhat General Joint Stock Company (Vinicorp) Addr: 3F, 92 Hoang Ngan - Trung Hoa - Cau Giay - Hanoi Tel :(+84)-4-3556-3607 Fax :(+84)-4-3556-3608 Nguyen Vu Hung Email: vuhung(a)vinicorp.com.vn Mobile: (+84)-167-252-5834 ***********************************************************************

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Variable assigned to grep output - missing letter n!
by Sean Carolan 21 Jul '11

21 Jul '11

This is kind of odd. [scarolan@host:~]$ cat loremipsum.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia fermentum, enim erat placerat erat, vel imperdiet lorem velit et ligula. Nam congue est in nisl lacinia lobortis. Vivamus elementum lacinia sodales. Curabitur commodo risus tincidunt augue pulvinar vehicula. Morbi eget velit sollicitudin nibh porta molestie. Maecenas in augue id quam ullamcorper rutrum. [scarolan@host:~]$ vi loremipsum.txt [scarolan@host:~]$ myvar=$(grep lorem loremipsum.txt) [scarolan@host:~]$ echo $myvar Lorem ipsum dolor sit amet, co sectetur adipisci g elit. Do ec quis ipsum sed elit laoreet malesuada. Quisque rho cus dui vitae eros euismod ferme tum sollicitudi sem scelerisque. Nulla facilisi. Maece as mollis pulvi ar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae laci ia ferme tum, e im erat placerat erat, vel imperdiet lorem velit et ligula. Nam co gue est i isl laci ia lobortis. Vivamus eleme tum laci ia sodales. Curabitur commodo risus ti cidu t augue pulvi ar vehicula. Morbi eget velit sollicitudi ibh porta molestie. Maece as i augue id quam ullamcorper rutrum. Where did all the letter n's go?

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Re: [CentOS] CentOS 6 PXE boot: Unable to download the kickstart file
by Ole Holm Nielsen 21 Jul '11

21 Jul '11

Patrick Lists wrote: >>> I fail to see how your repository problem is related to my Kickstart PXE/NFS >>> problem. We can install CentOS 6 (no Kickstart) without problems using PXE. >>> It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn >>> is how others have made NFS/Kickstart work... >> >> Is CentOS 6 assuming NFSv4 by default perhaps? > > According to the RHEL 6.0 Release Notes it is: > > "Mounting a file system via NFS now defaults to NFSv4." Yes, this sounds like the correct explanation! Our RHEL5.6 PXE/TFTP/NFS server is certainly configured for NFSv3. I haven't explored the NFSv4 approach though. How can we tweak the CentOS6 Kickstart installation to explicitly request an NFSv3 service in the PXE config file: kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg To rephrase my question: Where do we find documentation for the vmlinuz append flags shown above, in particular documentation of the ks=... flags? Hopefully there'll be some way to force an NFSv3 mount in stead of the default NFSv4? Or perhaps we need to use http: and stop using nfs: with CentOS6? Thanks, Ole

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