Discuss February 2014

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154 discussions

macvlan interfaces.
by Jan Hugo Prins 06 Feb '14

06 Feb '14

Hi, Does anyone here have any experience with macvlan interfaces? I need to know if this is stable in Centos. Jan Hugo Prins

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CentOS-announce Digest, Vol 108, Issue 4
by centos-announce-request＠centos.org 06 Feb '14

06 Feb '14

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2014:0139 Moderate CentOS 5 pidgin Update (Johnny Hughes) 2. CESA-2014:0139 Moderate CentOS 6 pidgin Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Wed, 5 Feb 2014 19:41:13 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2014:0139 Moderate CentOS 5 pidgin Update To: centos-announce(a)centos.org Message-ID: <20140205194113.GA1596(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2014:0139 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2014-0139.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 67302fb0dc1d83b8a161511e70a3903dcddd0b6da9830aff908554167e110430 finch-2.6.6-32.el5.i386.rpm 4e75765cbc346389bb4ddccbbc8457a90cb61fc071bf3f66b35139e590009820 finch-devel-2.6.6-32.el5.i386.rpm dd3dcbbf89956097e263ffe80d69b88ce8105f759d9020063915e947dc7a4a7d libpurple-2.6.6-32.el5.i386.rpm 131cbad8fcd1eb8b6c32741529bcbc1484a3d884bbc52748513c95a5ea5bf229 libpurple-devel-2.6.6-32.el5.i386.rpm 76d81f2c64dc54ef4f272698a234424b97e1f280b9299dc9978594a73899b706 libpurple-perl-2.6.6-32.el5.i386.rpm 4acc344af7b37a9137d4bebc7a9021bc9159b7b60caab3784a9e1deb40f076e1 libpurple-tcl-2.6.6-32.el5.i386.rpm b6161e50f321b283139a21298bbf643fcffcf862d183830795c2ffd2d2b9cd6f pidgin-2.6.6-32.el5.i386.rpm 6bdc0d5bf2aa83b0e2423d7565bd05bd6f34abdcbfc52b5713c4e6cf855e7df9 pidgin-devel-2.6.6-32.el5.i386.rpm da31827340ec6072286c62d3fa6612c885895c0ad7b7230ac14309bdd764feed pidgin-perl-2.6.6-32.el5.i386.rpm x86_64: 67302fb0dc1d83b8a161511e70a3903dcddd0b6da9830aff908554167e110430 finch-2.6.6-32.el5.i386.rpm 17f5585e2eff6f64534beb1e9455aa2b7676283c4556f5b03f1587dfb06226a3 finch-2.6.6-32.el5.x86_64.rpm 4e75765cbc346389bb4ddccbbc8457a90cb61fc071bf3f66b35139e590009820 finch-devel-2.6.6-32.el5.i386.rpm 06d0f5b988509cc094f8e6db6ca8f4c87f83ea9c16db1e76be5b5a81cdd3f4be finch-devel-2.6.6-32.el5.x86_64.rpm dd3dcbbf89956097e263ffe80d69b88ce8105f759d9020063915e947dc7a4a7d libpurple-2.6.6-32.el5.i386.rpm 3246fb795ab6f7d2aa342372af2b87d0fad1fe449c69ff534d542a79cb58bbca libpurple-2.6.6-32.el5.x86_64.rpm 131cbad8fcd1eb8b6c32741529bcbc1484a3d884bbc52748513c95a5ea5bf229 libpurple-devel-2.6.6-32.el5.i386.rpm 5dc51f5155a599531ce7eafeb6dab5e71e0e956dbc6b2c3ec78e4c5248356d6c libpurple-devel-2.6.6-32.el5.x86_64.rpm b28f1e1a86dbcabba5d9a3348c7eef94c0d0d53efd064828e33dce54d75d845a libpurple-perl-2.6.6-32.el5.x86_64.rpm 432d9841d5f52b91c2381b0f7d9946b410862dac9e4775af79dba3e3a21b67f8 libpurple-tcl-2.6.6-32.el5.x86_64.rpm b6161e50f321b283139a21298bbf643fcffcf862d183830795c2ffd2d2b9cd6f pidgin-2.6.6-32.el5.i386.rpm 34a0db70fa592434d5a16558cb7ba9fb128aa1efbb671ba83ca75f140f2c9783 pidgin-2.6.6-32.el5.x86_64.rpm 6bdc0d5bf2aa83b0e2423d7565bd05bd6f34abdcbfc52b5713c4e6cf855e7df9 pidgin-devel-2.6.6-32.el5.i386.rpm ab4d6b7bb2443dddf36d25ce7759ce325d957720369dc8f6184afae89fdb2e7e pidgin-devel-2.6.6-32.el5.x86_64.rpm 2574e349c7dbbadc184ef9c610141f176143c29e65d54bf23b986855c1d7fd06 pidgin-perl-2.6.6-32.el5.x86_64.rpm Source: cba00601abbfafbbc434e2e15ecce7934eefa616fa1df4b0c46903620e52dc2c pidgin-2.6.6-32.el5.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 5 Feb 2014 19:43:57 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2014:0139 Moderate CentOS 6 pidgin Update To: centos-announce(a)centos.org Message-ID: <20140205194357.GA21788(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2014:0139 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2014-0139.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 54cd22cf339e22a28301695c9be011921cc5541ccb77264214b7998297cf2b0d finch-2.7.9-27.el6.i686.rpm c44cb639aae7f232fd1d3c6417808a52eb88e1f5c224dd1c5adfd2ce2fb90155 finch-devel-2.7.9-27.el6.i686.rpm a147b1266d042adadc20cdd9a2212cad5933ae493644c4363d520ca16a222489 libpurple-2.7.9-27.el6.i686.rpm 8b1bcfb73f970a8de2208c01fca43263f444dd9ee591590710154b43f247c01d libpurple-devel-2.7.9-27.el6.i686.rpm 8bb38576db5befa7ab916725a110c9807522cd41a89b208299b2e246021777ce libpurple-perl-2.7.9-27.el6.i686.rpm 21c6f890cc55f7b164bbd31bf0e3c98424a06f64d844e95371948d8d2e71e90e libpurple-tcl-2.7.9-27.el6.i686.rpm 913bc70f08e7955bf2866e20a62b62f0f3a0f64637cfbae105440c2c09d5504b pidgin-2.7.9-27.el6.i686.rpm 8b9f8256636c5bfff200053b3b81af5a3eefc8ff3ba0e2995920352c30e3ec01 pidgin-devel-2.7.9-27.el6.i686.rpm b5bbfcd1df2454814702d99152b317959a8386425a5d478bd340f23d8a993933 pidgin-docs-2.7.9-27.el6.i686.rpm c327a1c2a1c9d1dad4ef1792110fa6b2fada1ae228dd80767839d75317a2ff54 pidgin-perl-2.7.9-27.el6.i686.rpm x86_64: 54cd22cf339e22a28301695c9be011921cc5541ccb77264214b7998297cf2b0d finch-2.7.9-27.el6.i686.rpm 4112325742a6a9883ec46ae8fac8dc7aed7cfaa44890eeddf07a88e14ce2dc30 finch-2.7.9-27.el6.x86_64.rpm c44cb639aae7f232fd1d3c6417808a52eb88e1f5c224dd1c5adfd2ce2fb90155 finch-devel-2.7.9-27.el6.i686.rpm 237b49c8b8147fc12fdcf3ef99694c79da02228eaf54c4f5f810891b5af944f2 finch-devel-2.7.9-27.el6.x86_64.rpm a147b1266d042adadc20cdd9a2212cad5933ae493644c4363d520ca16a222489 libpurple-2.7.9-27.el6.i686.rpm f1fcafeb8c5e115983691f2f8b7f2ed3ba431845f839f7bf7494aa69c90689e4 libpurple-2.7.9-27.el6.x86_64.rpm 8b1bcfb73f970a8de2208c01fca43263f444dd9ee591590710154b43f247c01d libpurple-devel-2.7.9-27.el6.i686.rpm ad963e4d19772590ede2e3df2bc57c8738640183892878cf1a8f8f24e1047142 libpurple-devel-2.7.9-27.el6.x86_64.rpm 30057f2481e429dc2fd29b1479bc1e4dde32d4045e8fd848233bf09c8e575aa9 libpurple-perl-2.7.9-27.el6.x86_64.rpm 4097c08129e4e76af0828e2bca1b26b22d7a89b5f1b18b8934d9096789186edf libpurple-tcl-2.7.9-27.el6.x86_64.rpm f8e77da72ccacaeddeedc56f2372676eb1f19d78a03e354a1e8020608fd2c98f pidgin-2.7.9-27.el6.x86_64.rpm 8b9f8256636c5bfff200053b3b81af5a3eefc8ff3ba0e2995920352c30e3ec01 pidgin-devel-2.7.9-27.el6.i686.rpm b174e49727feded10555e0ec639916d634550619ee622c40889ac6e711da894e pidgin-devel-2.7.9-27.el6.x86_64.rpm f3d3cc9e2ea52179e420c2d39e1bc63f52ef8dad92aba44e2bc42da7463f9bd9 pidgin-docs-2.7.9-27.el6.x86_64.rpm 8fd96453c932fcb0026a2ee9cdbc1b9711eca976db1cdffe9f81f5777a361255 pidgin-perl-2.7.9-27.el6.x86_64.rpm Source: da765edb6d06cf2d62ad9a51eef486920a33d020cc4a06ee72b0d12bea77f90b pidgin-2.7.9-27.el6.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 108, Issue 4 ***********************************************

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Application Hang issue in RHEL6.4
by Miraj Mohamed 06 Feb '14

06 Feb '14

Hi All, We see our application Hanging at shmctl (SHM_LOCK). Kernel : 2.6.32-358.el6.x86_64 OS : Red Hat Enterprise Linux Server release 6.4 (Santiago) 1. When it hangs, this is what strace gives: [RHEL6.4(a)10.201.0.221 bin]# strace -p 23793 Process 23793 attached - interrupt to quit [ Process PID=23793 runs in 32 bit mode. ] shmget(0x110c1be, 16777216, 0666) = 3801140 shmat(3801140, 0, 0) = 0x85c2c70e7755000 shmctl(3801140, IPC_64|SHM_LOCK, 0^C <unfinished ...> 2. When we kill the application and generate a core file, Here is what gdb shows: Core was generated by ` <our application> 12 12 10.33.0.230 eth1 -1 0 3 fd5d:d50a:8c17:3300::e6'. Program terminated with signal 6, Aborted. #0 0x007c2430 in __kernel_vsyscall () Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.107.el6.i686 libgcc-4.4.7-3.el6.i686 libstdc++-4.4.7-3.el6.i686 (gdb) bt #0 0x007c2430 in __kernel_vsyscall () #1 0x008a8d8e in shmctl@@GLIBC_2.2 () from /lib/libc.so.6 #2 0x0847c13e in MpcMpSwms_SwibIfShmSegOpen (ps=<value optimized out>, ctl=<value optimized out>) at src/MpcMpSwms_SwibIfShm.c:271 #3 0x0847c551 in MpcMpSwms_SwibIfShmOpen (pvs=0xb0e8984, pvctl=0xffc35354) at src/MpcMpSwms_SwibIfShm.c:379 #4 0x0847bb9f in MpcMpSwms_SwibIfOpen (ps=0xb0e7dc4, ctl=0xffc35354, swib_if=SWIB_IF_SHM) at src/MpcMpSwms_SwibIf.c:126 #5 0x080b792a in MpcMpSwms_SwibOpen (ps=0xa019da8, ctl=0xffc357d8) at src/MpcMpSwms_Swib.c:253 #6 0x080b63a0 in main (argc=9, argv=0xffc35924) at src/MpcMpSwms_Main.c:1364 (gdb) What could be the reason for hanging? Any solution? -miraj

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UEFI booting
by Jerry Geis 06 Feb '14

06 Feb '14

Hi All, I received a Intel Nuc D34010WYK. nice and small. I installed 6.5 x86_64 on it in LEGACY boot mode on the mSATA disk. All worked except sound. In process of trying to get that working I saw posts about Need to not use LEGACY boot mode for HDMI sound to work. I am trying to find a document on how to use the UEFI boot on 6.5 Any great resource out there for that? Thanks, Jerry

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yum update tries and fails to install libreswan
by Fred Smith 05 Feb '14

05 Feb '14

On 6.5, I've got openswan installed, but yum update is wanting to install libreswan. If libreswan is intended to replace openswan, wouldn't the appropriate yum transactions have been created to remove opnswan first? I'm stumped. Advice appreciated. Fred -- ------------------------------------------------------------------------------- Under no circumstances will I ever purchase anything offered to me as the result of an unsolicited e-mail message. Nor will I forward chain letters, petitions, mass mailings, or virus warnings to large numbers of others. This is my contribution to the survival of the online community. --Roger Ebert, December, 1996 ----------------------------- The Boulder Pledge -----------------------------

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Read only nfsroot and diskless booting CentOS 6?
by David C. Miller 05 Feb '14

05 Feb '14

Does anyone have any good how-to's or documentation on setting up read only root NFS for pxe booting diskless computers? A few months ago I stumbled upon an official Redhat doc through a google search(not hosted by redhat and I cannot find it anywhere on the Redhat site) written by Dave Kline named "Configuring diskless clients with Red Hat Enterprise Linux" from 2011. It seemed to be a work in progress but the steps in it did work for doing nfsroot for one diskless client only. It did not have any explanation for doing read only nfsroot or how to deal with /var for multiple systems. I know there is a file in /etc/sysconfig/readonly-root but I could not get it working correctly. I did kludge together something for /var where during the init process I created a tmpfs for /var and rsync'd a copy of /var from an nfs mount. This worked, but again I felt it was a kludge to a proper solution. Although I got this working for booting an old bios based Dell and a VM via PXE boot, I don't know if it will work for newer UEFI based computers. I'm just looking to boot about 20 or so small modern PC's into a stripped down gnome desktop with a few apps installed. I still have not decided on the diskless clients I want to use. I was thinking either something like the low end intel NUC or one of the small AMD APU based PC's. David C Miller.

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Issue with startup and file manager
by Fabrizio Di Carlo 05 Feb '14

05 Feb '14

Hello to all, I just power on my laptop and when I login the OS started to load N istances of File Manager... so my laptop is not usable... how can I solve?

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Experience with BTRFS?
by Lists 05 Feb '14

05 Feb '14

Was wondering if anyone here could weigh in on using BTRFS for CentOS 6 in a "near production" environment? I've been using ZFS on Linux and am very happy with the results so far, but don't particularly want to put all my eggs in one basket. Our application architecture allows us to have multiple, concurrent filesystems in mirror so I have the option of running a system under production-like environment without risking actual loss of customer data. In any event, we will be triple redundant at the application level, with ZFS on one file store, RAID/LVM/EXT4 on another, and possibly BTRFS on the third. Of course, I would want to use AT LEAST "release candidate" quality filesystem, but the ability of ZFS and BTRFS to check for errors and fix without downtime hold a tremendous amount of weight. The file stores are big enough that it is a days-long process to bring an offline file store back online. It would seem that BTRFS is slightly more flexible than ZFS, EG the ability to add RAID-levels for improved redundancy after initial creation without taking the system(s) offline. Anybody using BTRFS for real, sustained-load, 24x7 environment? -Ben

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Scheduler Elevator Deadline
by Matt 05 Feb '14

05 Feb '14

In past on my machines with single drive or software RAID I have always had to change elevator to deadline. Mainly due to fact I was running email server with a great deal of I/O. Switching from CFQ to Deadline made a huge difference. I am wandering if with a hardware RAID controller should I still switch too Deadline or does the RAID controller do reordering etc. for me? Likely best answer is to try it. Doubt it would hurt anything to still switch too Deadline if I have plenty of CPU to spare. I am also trying to move all my servers to OpenVZ for hardware independence. When I need more disk space, CPU, etc. I just backup and move it. Perhaps there are gotchas there? Thanks.

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Re: [CentOS] 6.5 single user mode
by Les Mikesell 05 Feb '14

05 Feb '14

On Wed, Feb 5, 2014 at 5:44 AM, Steve Clark <sclark(a)netwolves.com> wrote: > > If what you are really doing is the equivalent of cloning images, you > might look at clonezilla, or the backup/restore package called rear > (in EPEL). But for a quick brute-force change, you could probably > edit /etc/init/rcS-sulogin.conf and add the script you want to replace > /sbin/sushell. > > Hi Les, > > Yes I found that file - Thanks. > I'd still recommend looking at clonezilla and rear. Clonezilla-live is a CD you boot to save/restore images - and there is also a network server version for PXE booting and image storage. The good part is that it can handle windows along with most linux versions. The down side is that the restore disk has to be the same size or larger. Rear is a set of shell scripts that use your own system tools to build a bootable image containing the scripts you need to partition, format, and restore (pretty much exactly what you are doing but with more options). It is really intended as a backup with a fast simple restore back on the same hardware, but you have an opportunity to change the disk layout if needed so it works for cloning or moving a working system. In an case, the other thing new in 6.x is that you need to remove the udev rules for the NICs or update them with the new MAC addresses or the cloned machine will start its ethx names above the old ones, plus fix the /etc/sysconfig/network-scripts/ifcfg-ethx files like you did in 5.x. -- Les Mikesell lesmikesell(a)gmail.com

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Discuss February 2014