Discuss September 2012

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139 participants
149 discussions

self-encrypting drives
by John R Pierce 23 Sep '12

23 Sep '12

whats the state of support for self-encrypting drives in CentOS 6 ? these are becoming increasingly common on both laptops and for enterprise storage (particularlly nearline), with features like instant-erase via key destruction. -- john r pierce N 37, W 122 santa cruz ca mid-left coast

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tutorial or guide to write RPM Spec file
by Kaushal Shriyan 23 Sep '12

23 Sep '12

Hi, Are there tutorials available in official CentOS documentation for writing RPM Spec file Regards Kaushal

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Problems with widescreen (16:9) under CentOS 5 w/ xorg-x11-drv-i810-1.6.5-9.40.el5
by Robert Heller 23 Sep '12

23 Sep '12

I am the tech guy for a local library. We have a network containing several diskless workstations. The hardware are these P4 boxes: http://www.geeks.com/details.asp?invtid=SAMBA845V-24-4-R&cat=SYS (We have inserted additional memory, bringing most of the machines up to 1.25Gig of memory, and two up to 2Gig of memory.) These little machines have integrated Intel video chips on their motherboards and have both VGA and DVI connectors: (II) I810(0): VESA VBE OEM Vendor: Intel Corporation (II) I810(0): VESA VBE OEM Product: Intel(r)845G/845GL/845GE/845GV Graphics Controller (II) I810(0): VESA VBE OEM Product Rev: Hardware Version 0.0 (II) I810(0): Integrated Graphics Chipset: Intel(R) 845G (--) I810(0): Chipset: "845G" And the i810 driver seems to be happy to talk to these chips. I am using the stock (distro supplied) RPM: xorg-x11-drv-i810-1.6.5-9.40.el5 The machines are running pretty much stock CentOS 5.8 (I am slightly behind on some updates). These machine boot off the network and then mount their root (/), /usr, and /home file systems via NFS from the server and function otherwise as normal workstations. And they work great with 4:3 monitors. Recently, because of new cataloging and circulation software which seems to have been designed by (open source) developers who probably have new widescreen monitors on their machines, we have put widescreen (16:9) monitors on three of the machines (various menus and toolbars don't fit on a 4:3 monitor, even at 1280x1024 [19-20" monitor]). But we are having some problems getting the proper aspect ratio (or even a display at all) on two of the three. First of all, using the VGA connection, the X server *refuses* to use any Modeline that is not a 4:3 aspect ratio. It seems that the X server presumes that *all* VGA connected monitors are 4:3. (All three of the new wide screen monitors do have 15-pin VGA connections, so this 'presumption' is obviously false, esp. since the monitors using DDC while connection via VGA are suggesting 16:9 mode lines.) I got *one* of the machines to correctly use a 16:9 aspect ratio Modeline (1600x900) using the DVI connection. The other two don't work. One won't display anything (claims that the video is missing or wrong). And the other just uses something like 640x480. Both monitors work just fine on DVI in console display mode (bare kernel VGA), so the video card is seeing the monitor and sending it a signal at that level. I have tried everything I can think of. The various log files and config files are here (each tar file contains one log and one config): This is the *working* machine (HP W2072a): http://www.deepsoft.com/wp-content/uploads/2012/09/catalog-DVI-1600x900.tar… These are for a (not working) Acer X223W: http://www.deepsoft.com/wp-content/uploads/2012/09/clearwater-VGA.tar.gz http://www.deepsoft.com/wp-content/uploads/2012/09/clearwater-DVI.tar.gz >From xdpyinfo while connection via VGA: screen #0: dimensions: 1680x1200 pixels (474x302 millimeters) resolution: 90x101 dots per inch And for a (not working) ViewSonic VA2431WM: http://www.deepsoft.com/wp-content/uploads/2012/09/circdesk-VGA.tar.gz http://www.deepsoft.com/wp-content/uploads/2012/09/circdesk-DVI-1600x900.ta… http://www.deepsoft.com/wp-content/uploads/2012/09/circdesk-DVI-1440x900.ta… http://www.deepsoft.com/wp-content/uploads/2012/09/circdesk-DVI.tar.gz >From xdpyinfo while connection via VGA: screen #0: dimensions: 1600x1200 pixels (521x290 millimeters) resolution: 78x105 dots per inch We would really like square pixels -- is it possible or not? -- Robert Heller -- 978-544-6933 / heller(a)deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments

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Deciding CentOS version in live production environment
by Kaushal Shriyan 23 Sep '12

23 Sep '12

Hi, Can someone please guide me in deciding which specific CentOS Linux version viz 5.8 and 6.3 be used in Live production environment. Any merits and demerits of using either of these versions. Regards Kaushal

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Increase console resolution
by Kanwar Ranbir Sandhu 22 Sep '12

22 Sep '12

Hi Everyone, How do I change the console resolution of CentOS 6 KVMs to be 1024x768 or more? I have the spice server and qxl card selected for the KVM. I assumed it would be enough to put the text console into high res, but I was wrong. :/ Regards, Ranbir

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automatic repartitioning
by Abel Lopez 22 Sep '12

22 Sep '12

Hello all. Does anyone have any suggestions for making centos cloud images that can automatically repartition the root device to resize the filesystem? All the Ubuntu UEC images do this, so using the same image, you can launch cloud instances of a variety of flavors and the VM instance will repartition the root disk and resize the fs. The Ubuntu images utilize scripts in the initramfs dpkg that handle this. Just curious if anyone has been able to replicate this functionality.

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slapd 100% cpu
by Darod Zyree 21 Sep '12

21 Sep '12

Greetings, We have been attempting to set up a centos ldap server and then tried to log in with a user account specified in our ldap environment on a centos workstation. As soon as we attempt any kind of login from the centos workstation, be it via gdm or su ldap_user, the slapd process on the ldap server goes to 100% cpu. Is this normal behaviour?

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Detect if a drive is USB?
by Lists 21 Sep '12

21 Sep '12

I'm updating a script to work with EL6 (previously worked on EL5) and am stumped, google fu is failing me. Part of the script is to detect USB drives and mount them. Previously, It worked something like isUsbDevice() { if [ -f /sys/block/$1/usb ] ; then // do stuff fi; } but I don't find the "usb" file/directory anywhere to be found any more on el6. I've tried the output of lsusb and lsusb -v but in no case have I been able to find anything there matching anything in /sys/block that matching anything in lsusb's output. Given an available drive (EG: /dev/sdk) how can I reliably tell it's interface type? (USB/SATA/PATA/SCSI ?)

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CentOS-announce Digest, Vol 91, Issue 15
by centos-announce-request＠centos.org 21 Sep '12

21 Sep '12

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-2012:1288 Moderate CentOS 6 libxml2 Update (Johnny Hughes) 2. CEBA-2012:1303 CentOS 5 perl-LDAP Update (Johnny Hughes) 3. CEBA-2012:1302 CentOS 6 cvs FASTTRACK Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Thu, 20 Sep 2012 15:54:36 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1288 Moderate CentOS 6 libxml2 Update To: centos-announce(a)centos.org Message-ID: <20120920155436.GA23516(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1288 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1288.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 2b6de2c0535cb046fe2f14403593c7bf861642a053c3d3bc8a33de2bf7bf7195 libxml2-2.7.6-8.el6_3.3.i686.rpm 02aa9a568651f51b4e5e8703afa54ea3019a855183e4573922c2bdd0a27b6b4a libxml2-devel-2.7.6-8.el6_3.3.i686.rpm 02f314003fd9b49cc0c0ab68b02da4f6e1ffdaf0d0a66317218d2b1f8a8c7a0a libxml2-python-2.7.6-8.el6_3.3.i686.rpm 75c282ddd44ef390f20a2fce1cf17a74241fb99edf30785508d2bed1b954fc7c libxml2-static-2.7.6-8.el6_3.3.i686.rpm x86_64: 2b6de2c0535cb046fe2f14403593c7bf861642a053c3d3bc8a33de2bf7bf7195 libxml2-2.7.6-8.el6_3.3.i686.rpm d0e45ec7ce669eadfeb398dd8c056ad2dac66b7d8731e2fea33b1ffd848cb4aa libxml2-2.7.6-8.el6_3.3.x86_64.rpm 02aa9a568651f51b4e5e8703afa54ea3019a855183e4573922c2bdd0a27b6b4a libxml2-devel-2.7.6-8.el6_3.3.i686.rpm 86faf54ce03950a637731c7bf19ffe8a311ba4bf5bbd995a89dff2bd35acaccb libxml2-devel-2.7.6-8.el6_3.3.x86_64.rpm 5fcba2b219bab6e1c4c3df0cfe5eed59b4b693f615361fc63e40339442b11ef5 libxml2-python-2.7.6-8.el6_3.3.x86_64.rpm c9f0ccfbdfc8e1accfceb6c77a1d9db36d581a527737c53988eae124bbe62200 libxml2-static-2.7.6-8.el6_3.3.x86_64.rpm Source: 2edba25aadd60339e2de0ae85629202c7e242323de05fd2bebb345aa082ae00d libxml2-2.7.6-8.el6_3.3.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Fri, 21 Sep 2012 15:31:13 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1303 CentOS 5 perl-LDAP Update To: centos-announce(a)centos.org Message-ID: <20120921153113.GA28497(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1303 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1303.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: ecedb15f467cd4069263127e663047c2aa10b5e2db886e56a6c948b8e07c3f80 perl-LDAP-0.33-4.el5_8.noarch.rpm x86_64: ecedb15f467cd4069263127e663047c2aa10b5e2db886e56a6c948b8e07c3f80 perl-LDAP-0.33-4.el5_8.noarch.rpm Source: facceedb76ec2250cc717d66b528d7872e9439f26d1ce7169f38666d9a8b5d91 perl-LDAP-0.33-4.el5_8.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Fri, 21 Sep 2012 15:39:50 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1302 CentOS 6 cvs FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20120921153950.GA28667(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1302 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1302.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: cef98ad1b8da26a05f54c89b93922c3362bbf6c4ec40078fdaef5cf32d90b4d5 cvs-1.11.23-15.el6.i686.rpm 085a80bda8cf4627a71ddcb078f4a5c13fdf7b69da5faf4b8fbbee43febd11ea cvs-inetd-1.11.23-15.el6.noarch.rpm x86_64: e85a76b7a959db0566c656b82fb4ad69ddec2ab448e111086716c63e18945c33 cvs-1.11.23-15.el6.x86_64.rpm 455178ca3ab78b5f0403da16f4512ac9f5d2481e191329f5b7f02ef7b05b2423 cvs-inetd-1.11.23-15.el6.noarch.rpm Source: 6a2959f12c886eca469dc0de0412dbb0344af5deb3a7f5735d103522ac9adb62 cvs-1.11.23-15.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 91, Issue 15 ***********************************************

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placing x11 libraries in an alternate location
by Rita 21 Sep '12

21 Sep '12

we have close to 50 servers. I would like to have X11 libraries (and devel). Instead of installing them one by one on all servers, I would like to have them in a central NFS location and have my app pick them up like that. Is it possible to do this with yum/rpm ? -- --- Get your facts first, then you can distort them as you please.--

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Discuss September 2012