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CentOS-announce Digest, Vol 103, Issue 17
by centos-announce-request＠centos.org 28 Sep '13

28 Sep '13

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to lvm or not to lvm - why/when to use lvm
by Götz Reinicke - IT Koordinator 27 Sep '13

27 Sep '13

Hi, I was wondering, why/when it is useful or when should I avoid to use LVM. I think the big advantage of LVMing is if you modify (rezising, ...) disk and filesystem layouts "a lot". Are there any real pros or cons for following situations regarding e.g. management and speed? e.g.: I do have a server system raid for which the disk layout will not change; e.g. /var /usr /home will not change much in size. OR I do have some file storage shares (iscsi raids) up to some TB each on one big storage device. Sometimes (e.g. after a server crash) it is useful to remount the storage to a different server. Should I use LVM on the iscsi storage volumes? Any suggestion and comment is welcome . Regards . Götz -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 82 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzender des Aufsichtsrats: Jürgen Walter MdL Staatssekretär im Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg Geschäftsführer: Prof. Thomas Schadt

8 11

Re: [CentOS] scanner only works in su mode
by Michael Hennebry 27 Sep '13

27 Sep '13

On Thu, 26 Sep 2013, Robert Heller wrote: > OK, this is what you need to do: > > Create a file named /lib/udev/rules.d/90-local.rules containing this line: > > SUBSYSTEMS=="usb", ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="5611", GROUP="scanner", MODE="0660" > > > (This means: on the USB subsystem, for a device with vendor id 03f0 (HP), and > product id 5611 (Photosmart C3180), change its group to 'scanner', and its > mode to 0660.) > > then execute this command (probably not needed, but can't hurt): > > udevadm control --reload-rules > > make sure there is a group named 'scanner' and that you are a member of it > (yes, you have to logout/login again to get the group update). > > unplug and re plug in the device. The device file fill now be in group scanner > with group rw permission and anyone in the scanner group can run hp-scan and > access the scanner (note it probably won't be /dev/bus/usb/001/006, but > something else (/dev/bus/usb/001/007 probably and /dev/bus/usb/001/006 will vanish). That did the trick. I used lp instead of scanner because I'd already made myself a member of lp. Thanks. > I don't know if this will bork things if you plan to use this thing as a > printer under CentOS (I am not sure what user the CUPS daemon runs as). If > necessary, you might need to tweek the rules file to be compatible with CUPS > or add the UID used by the CUPS daemon to 'scanner'. Printing works fine. The only issue I've noticed is that if I leave paper in the all-in-one, it wants to copy, not just scan. I'm not sure whether that is a change. It's been an OS ago since I wanted to scan. -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "On Monday, I'm gonna have to tell my kindergarten class, whom I teach not to run with scissors, that my fiance ran me through with a broadsword." -- Lily

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erasing an hdd - forensics of hard disk drives, dban, destroying hdd
by g 27 Sep '13

27 Sep '13

greetings list, i am creating a new thread because of comment made by; From: Nicolas Thierry-Mieg <Nicolas.Thierry-Mieg(a)imag.fr> in thread "Subject: [CentOS] erase disk". in past readings about; erasing an hdd, forensics of hard disk drives, dban, destroying hdd i submit these links for those who may wish to further their knowledge on primaries of hdd forensics; hard disk drive forensics - Ixquick Web Search https://ixquick.com/do/search?q=%22hard+disk+drive+forensics%22&lui=english About 28 results hdd forensics - Ixquick Web Search https://ixquick.com/do/search?q=%22hdd+forensics%22&lui=english About 8,410 results forensics of hard disk drive - Ixquick Web Search https://ixquick.com/do/search?q=%22forensics+of+hard+disk+drive%22&lui=engl… About 5 results [actually, 1] forensics of hdd - Ixquick Web Search https://ixquick.com/do/search?q=forensics+of+hdd&lui=english About 819,695 results of the above, #3 relates to a book; Spin-stand Microscopy of Hard Disk Data (Elsevier Series in Electromagnetism) [Hardcover] which is available thru "amazon.com" and i would imagine other good book supplies. at amazon, there is; /*quote Book Description Publication Date: April 11, 2007 | ISBN-10: 0080444652 | ISBN-13: 978-0080444659 | Edition: 1 This book provides an in-depth exposition of spin-stand microscopy of hard disk data which is a new technique recently developed and extensively tested by the authors of the book. Spin-stand microscopy is the first magnetic imaging technique where imaging is performed ex-situ on a rotating disk mounted on a spin-stand. This technique is one of the fastest scanning-based microscopy techniques. It is non-invasive and has nano-scale resolution. For these reasons, it provides unique capabilities for the visualization of magnetization patterns recorded on hard disks. /*etouq i do not have book, tho if i have $237.50 and nothing better to spend it on, i may purchase it. as can be seen by "results" of above links, there is a lot of information available related to "Subject:". something that, in my current and passed readings, many do not seem aware of is that even tho 'dban' can be use to remove data, it _does_not_ guarantee removing, beyond recovery, data on a hard disk. head gap wear and bearing wear factor in highly as to whether or not data can be readily recovered, and to a greater factor, if hdd is mounted vertical or horizontal. if one wishes, as mentioned in two of post, "sledge hammer" and "hydraulic wedge", are good ways. much better, and more assured is 'degaussing' disk platters, even which will leave a small bias. best way, of insuring data removal is to scrape disks clean of coating, or to burn off coating. i have used latter. -- peace out. in a world with out fences, who needs gates. tc.hago. g .

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CentOS-announce Digest, Vol 103, Issue 16
by centos-announce-request＠centos.org 27 Sep '13

27 Sep '13

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. CEBA-2013:1288 CentOS 5 mkinitrd Update (Karanbir Singh) 2. CEBA-2013:1289 CentOS 6 libreport Update (Karanbir Singh) 3. CEBA-2013:1289 CentOS 6 abrt Update (Karanbir Singh) 4. CEBA-2013:1291 CentOS 6 libvirt-cim Update (Karanbir Singh) 5. CEBA-2013:1290 CentOS 6 iputils Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Thu, 26 Sep 2013 16:11:39 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1288 CentOS 5 mkinitrd Update To: centos-announce(a)centos.org Message-ID: <20130926161139.GA13019(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1288 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1288.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 83dc958013d4095db5c63ba7762e0aebf9897e1247190b7fa2ae370ec525ad97 libbdevid-python-5.1.19.6-81.el5_9.i386.rpm e9e4912862694a3d7121efc28a766365e12c939f83637bd33551b805094df391 mkinitrd-5.1.19.6-81.el5_9.i386.rpm 9f4fa1a2f7e7a85ae77b191590c449084e8dd80a200745cc48066d0ccdea5780 mkinitrd-devel-5.1.19.6-81.el5_9.i386.rpm 2baeb7c7876dc9386d48c5ba7a10fed0500306836d186157e97a6fca9bed43ef nash-5.1.19.6-81.el5_9.i386.rpm x86_64: 54077274a6a4e519baf3ef9a9e84c12ba96cd5f280e77c67a807cf3673fcebc5 libbdevid-python-5.1.19.6-81.el5_9.x86_64.rpm e9e4912862694a3d7121efc28a766365e12c939f83637bd33551b805094df391 mkinitrd-5.1.19.6-81.el5_9.i386.rpm 42305dd7561730826707c2be2fc6767ea7937555f7ffe1b6231e506c74d05f63 mkinitrd-5.1.19.6-81.el5_9.x86_64.rpm 9f4fa1a2f7e7a85ae77b191590c449084e8dd80a200745cc48066d0ccdea5780 mkinitrd-devel-5.1.19.6-81.el5_9.i386.rpm fac665b1217b61e036ad2779d2fd5c25ecd433dc3a365087a2a6d2ada7a3bed9 mkinitrd-devel-5.1.19.6-81.el5_9.x86_64.rpm b6fb41e9e0d5f505e1a078a6dfa777a937fe92a181a026596783fc2b65c49f4f nash-5.1.19.6-81.el5_9.x86_64.rpm Source: 0b8eb4eba5f5a4dd21566d7d0ea17745a70aef05196b21f5533cefab6f1c5dc1 mkinitrd-5.1.19.6-81.el5_9.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Thu, 26 Sep 2013 18:36:25 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1289 CentOS 6 libreport Update To: centos-announce(a)centos.org Message-ID: <20130926183625.GA37349(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1289 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1289.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: a3491a470f10dd38fc5039ec5dd15b46512f5c4f7d05d68cd92a8b190a10919d libreport-2.0.9-15.el6.centos.1.i686.rpm 3b643608976ff309d65a6ef9bbf6fa16d510eb3800b3ba40d1b4d2ebd4f6d49b libreport-cli-2.0.9-15.el6.centos.1.i686.rpm c97c015614b735e635d374009629dd49b27f46d217333987367836560c007b83 libreport-compat-2.0.9-15.el6.centos.1.i686.rpm 30e57f61f966e27fbeb7a99f317fddfaca544537f7a8eb9a7626efa1ea342c0a libreport-devel-2.0.9-15.el6.centos.1.i686.rpm a38c2c852052fa4418933603cec1faa5d67ef6741545e34ca7e252c76c4b2b49 libreport-filesystem-2.0.9-15.el6.centos.1.i686.rpm bf7c906172023096693661eb2b4ba8b20b4e47c8c9be8f0284270ca33a02dcbf libreport-gtk-2.0.9-15.el6.centos.1.i686.rpm e620b4bd2543e24ed989627769ee97135d0423059e389e9e9d38985863d6f3c1 libreport-gtk-devel-2.0.9-15.el6.centos.1.i686.rpm d009ad11bb071d6e174b208c19e688355e3d6b8603c4bd340d190817ed64ed7b libreport-newt-2.0.9-15.el6.centos.1.i686.rpm c034e9814c3c5790b0f4bb477c1b17c6363935dd254a03fcd918a6689c2d8a18 libreport-plugin-bugzilla-2.0.9-15.el6.centos.1.i686.rpm ab1e6b6547ec8ff63ad83fe0189dd67082151f494b5e57790cd715b03bf0575e libreport-plugin-kerneloops-2.0.9-15.el6.centos.1.i686.rpm 21e51756fc0746915987f89bb9c232e292910efa9136f269c690f2b6c7ce9186 libreport-plugin-logger-2.0.9-15.el6.centos.1.i686.rpm fed471c7110203c80a1b2dc76ff6324a15ad00ca0f33c38e5e2816d852902655 libreport-plugin-mailx-2.0.9-15.el6.centos.1.i686.rpm b7c2a6070e3b674c1b8ef644c8f3019ce5da30a62d9e58adf8573e1a01ed6dde libreport-plugin-reportuploader-2.0.9-15.el6.centos.1.i686.rpm 0e3ce83ab152155726b8419d72895d4e848fc238262743ead9e27ecdfdfe31be libreport-plugin-rhtsupport-2.0.9-15.el6.centos.1.i686.rpm 704a6974aae0a2a009e2a418d8e136fc48f893b94c3beb57c68b9a2e997ee104 libreport-python-2.0.9-15.el6.centos.1.i686.rpm x86_64: a3491a470f10dd38fc5039ec5dd15b46512f5c4f7d05d68cd92a8b190a10919d libreport-2.0.9-15.el6.centos.1.i686.rpm 6c749e2e1763e1ac5998f5f2059662a92bf15d59d4a4fe69e04b45d60421418d libreport-2.0.9-15.el6.centos.1.x86_64.rpm d0b8ff6e8ed482efdb8e2abd8043fb33d18893d1a63c2e892f4205f10d2a0fbf libreport-cli-2.0.9-15.el6.centos.1.x86_64.rpm 2fb28904d17bca1296c42ca8464522789b4ac4a5b50243734576fc9dd6f496f8 libreport-compat-2.0.9-15.el6.centos.1.x86_64.rpm 30e57f61f966e27fbeb7a99f317fddfaca544537f7a8eb9a7626efa1ea342c0a libreport-devel-2.0.9-15.el6.centos.1.i686.rpm 437d0891b5dd38f00bcac3b1bb8a552c0e9acd21308bbadd4874b5d4e37a4f0f libreport-devel-2.0.9-15.el6.centos.1.x86_64.rpm 0f24088c281a2fc9ddfb7a31e2ddb907600fec0681ecba04255af3e020c32e6d libreport-filesystem-2.0.9-15.el6.centos.1.x86_64.rpm bf7c906172023096693661eb2b4ba8b20b4e47c8c9be8f0284270ca33a02dcbf libreport-gtk-2.0.9-15.el6.centos.1.i686.rpm a4dc12987bf1d71eeb155397106ea6afe3d1964fa4a470c79c03aca7f8d993ca libreport-gtk-2.0.9-15.el6.centos.1.x86_64.rpm e620b4bd2543e24ed989627769ee97135d0423059e389e9e9d38985863d6f3c1 libreport-gtk-devel-2.0.9-15.el6.centos.1.i686.rpm e1ff39a014d3355492ec970c898aa06c0109dfe64627b0e2589bd655a0836912 libreport-gtk-devel-2.0.9-15.el6.centos.1.x86_64.rpm 9cadf6b5532c0a88d545ec7cc4e063ad1cd39ad25791b380bfc6308acbd5dc81 libreport-newt-2.0.9-15.el6.centos.1.x86_64.rpm 2851d2ffdff8742b56654c615c561884e17cf5a60eee704ff852dd7330c805f7 libreport-plugin-bugzilla-2.0.9-15.el6.centos.1.x86_64.rpm 5fcf22394c23531dcca3cb6abd00ba272a7682857e4b3a37f584d5efdd6452c1 libreport-plugin-kerneloops-2.0.9-15.el6.centos.1.x86_64.rpm 65e05075557ae09ab522cd96adf360d723dc04aa0e729407ef05d89d1c9ea0bb libreport-plugin-logger-2.0.9-15.el6.centos.1.x86_64.rpm c016363032a65d481f6d76169228aa94af0a14c22addbd3cacddfbee0c975db9 libreport-plugin-mailx-2.0.9-15.el6.centos.1.x86_64.rpm efaef5473cf5fd6d99267da56cd434728554959beef0b39057878ee992e6bef0 libreport-plugin-reportuploader-2.0.9-15.el6.centos.1.x86_64.rpm 816f45a43e982c5ee8185ef9cb5c0f118f264cb99f46b25de3d21525d543a677 libreport-plugin-rhtsupport-2.0.9-15.el6.centos.1.x86_64.rpm c33ec084c343b61ca6e3584df19faea9fac46c8806ec5d5f5680044346cc0ab9 libreport-python-2.0.9-15.el6.centos.1.x86_64.rpm Source: a2c2653cef62bf639dac65db086d040ca235cfb165055397ffcb0fe1f16ed25a libreport-2.0.9-15.el6.centos.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Thu, 26 Sep 2013 18:36:43 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1289 CentOS 6 abrt Update To: centos-announce(a)centos.org Message-ID: <20130926183643.GA37522(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1289 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1289.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: b201d09a7b2122d998fcf5aeeac00c57adc238968c89fe705e5f6b65efc5c86d abrt-2.0.8-16.el6.centos.1.i686.rpm 455a31fb7b254c35c62a30d1635585e34e407d81429b258768cc68324cd30de7 abrt-addon-ccpp-2.0.8-16.el6.centos.1.i686.rpm 73c68d36e346b0099f26d370bb4d23612423f2c8d73af0c3db4d86820bf0c3ea abrt-addon-kerneloops-2.0.8-16.el6.centos.1.i686.rpm cfd7239c0399282998067ff73a5dbfe217139b76b863ec876b428b89bcd7bc4c abrt-addon-python-2.0.8-16.el6.centos.1.i686.rpm 1eb1bf85777bc73a2e75720cfee1b2720a02cf65921e774d7bef18bce19aee75 abrt-addon-vmcore-2.0.8-16.el6.centos.1.i686.rpm fe67320fb1d02167703e947beecfc0e2c3637930da7c167d76f5d429dfd94a86 abrt-cli-2.0.8-16.el6.centos.1.i686.rpm 35971a76a39cdd787e38d1a66b6fb8e6624c5633650d4e829625882b995da32e abrt-desktop-2.0.8-16.el6.centos.1.i686.rpm f0cb1a7dc52d63996ec50f1ebce6d94729c6c0e9aa1b85da52fc76ec3c99a52e abrt-devel-2.0.8-16.el6.centos.1.i686.rpm e7a30d9d0cc4758422e4022e7040e9df6223c199a3d57dca36fa84867adecea1 abrt-gui-2.0.8-16.el6.centos.1.i686.rpm 4a00e48f44de680eb79b7898c270374c417e4527bbdbcae1340d637985544f36 abrt-libs-2.0.8-16.el6.centos.1.i686.rpm 6552f1ecb81819871d2a83adf9214b526122325b9bd79f9583f1556aa0f7aa71 abrt-tui-2.0.8-16.el6.centos.1.i686.rpm x86_64: 6006ad3fcc1e32f2812a38e89ca8f91b99d0f4f93e035a4746d68bb30eedb069 abrt-2.0.8-16.el6.centos.1.x86_64.rpm ddf7b67f64a5cf5aee41d6a778d934cf2e674abda59c88753c12cddda07dd540 abrt-addon-ccpp-2.0.8-16.el6.centos.1.x86_64.rpm 9386118d9964f3847f721333b4e49e0a394f598ceda8e31a129f57ff38b468bd abrt-addon-kerneloops-2.0.8-16.el6.centos.1.x86_64.rpm bcfce61379c22d4623ed6bd080b88ade4b32459d0dce65f581709c607e1600c2 abrt-addon-python-2.0.8-16.el6.centos.1.x86_64.rpm 3643ed20796270728192cba5859c0dc02bf0217b7cb1aa9961a643b2291f22ae abrt-addon-vmcore-2.0.8-16.el6.centos.1.x86_64.rpm d6ee7c7027c7b799a745036716b072cd7c6b78b54e4c657681cb0c81ef7b6a6f abrt-cli-2.0.8-16.el6.centos.1.x86_64.rpm 9d5de3d6012162fcfc5cdac5e04c3d8b671ce7a52e8769416685ce5516a4c2cd abrt-desktop-2.0.8-16.el6.centos.1.x86_64.rpm f0cb1a7dc52d63996ec50f1ebce6d94729c6c0e9aa1b85da52fc76ec3c99a52e abrt-devel-2.0.8-16.el6.centos.1.i686.rpm 23c54733d7226fddee270fc827a767b0295dc7cf3849c470632f79a86ac3dadf abrt-devel-2.0.8-16.el6.centos.1.x86_64.rpm b9fc295e8a19823dc8f5216268cdf7ed71d5493e6a6bac3ca5982a987b3f4032 abrt-gui-2.0.8-16.el6.centos.1.x86_64.rpm 4a00e48f44de680eb79b7898c270374c417e4527bbdbcae1340d637985544f36 abrt-libs-2.0.8-16.el6.centos.1.i686.rpm 58940d4074e89e0787b3e148cda68efd2f7764396c0874d4dcf39fc7a4f2a2b8 abrt-libs-2.0.8-16.el6.centos.1.x86_64.rpm 6b1190b728c7d0a3c732708fce2d974de8bcb68f20f3e6de4096bc191826cb3e abrt-tui-2.0.8-16.el6.centos.1.x86_64.rpm Source: daadafeba1ae8999a3d6279c56abd157da1a5781a67e81bc26a48e55a4c6b026 abrt-2.0.8-16.el6.centos.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Thu, 26 Sep 2013 18:36:59 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1291 CentOS 6 libvirt-cim Update To: centos-announce(a)centos.org Message-ID: <20130926183659.GA37598(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1291 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1291.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 52d4625d3cd000c0d4e298b7a698caf937cf87f487977b6c8b5eeeae7c865104 libvirt-cim-0.6.1-4.el6_4.2.i686.rpm x86_64: 52d4625d3cd000c0d4e298b7a698caf937cf87f487977b6c8b5eeeae7c865104 libvirt-cim-0.6.1-4.el6_4.2.i686.rpm 582a42e4f9a24af8e5ceb186fa4546a2556b113ba768e3cb03668b0a1b5631f5 libvirt-cim-0.6.1-4.el6_4.2.x86_64.rpm Source: 1603c78c037285804291cfea58717ce479c08a06f6b12f2cf48949aa0c407afb libvirt-cim-0.6.1-4.el6_4.2.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 5 Date: Thu, 26 Sep 2013 18:37:15 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1290 CentOS 6 iputils Update To: centos-announce(a)centos.org Message-ID: <20130926183715.GA37673(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1290 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1290.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 94f58ee75df2cdcbc120e6356aedbcf0d8143d75fbfed64b7c36c70108cc6ed9 iputils-20071127-17.el6_4.2.i686.rpm x86_64: 69a07e6f69e84479b441e29f3fba1f3cbca41e783c6544d967b045bcdb433c40 iputils-20071127-17.el6_4.2.x86_64.rpm Source: 3e1be8d16b4b61d472cf6f6e0f32631d202928777c2189473bfb969ecbfb6315 iputils-20071127-17.el6_4.2.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #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 103, Issue 16 ************************************************

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Creating 38TB ext4 FS
by Peter Wood 27 Sep '13

27 Sep '13

mkfs.ext4 fails to create 38TB file system on CentOS 6.4 64bit with this error: mkfs.ext4: Size of device /dev/vg02/vtapes too big to be expressed in 32 bits using a blocksize of 4096. More details follow: # uname -a Linux tzbackup 2.6.32-358.18.1.el6.x86_64 #1 SMP Wed Aug 28 17:19:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux # fdisk -l /dev/sdc Disk /dev/sdc: 41996.7 GB, 41996727091200 bytes 255 heads, 63 sectors/track, 5105811 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 # pvdisplay /dev/sdc --- Physical volume --- PV Name /dev/sdc VG Name vg02 PV Size 38.20 TiB / not usable 4.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 10012799 Free PE 0 Allocated PE 10012799 PV UUID qGIgYy-Q8N2-xUjM-58Zb-uEnu-qFNY-NGjkhx # vgdisplay /dev/vg02 --- Volume group --- VG Name vg02 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 38.20 TiB PE Size 4.00 MiB Total PE 10012799 Alloc PE / Size 10012799 / 38.20 TiB Free PE / Size 0 / 0 VG UUID T1jUYU-wBTG-u0aN-AtYV-iFf8-S6Hw-zMuacu # lvdisplay /dev/vg02/vtapes --- Logical volume --- LV Path /dev/vg02/vtapes LV Name vtapes VG Name vg02 LV UUID 6cktBz-ayFL-5XVp-kVEp-4giU-A1Kc-Jjf2UV LV Write Access read/write LV Creation host, time tzbackup, 2013-09-20 13:29:30 -0700 LV Status available # open 0 LV Size 38.20 TiB Current LE 10012799 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:8 # mkfs.ext4 -b 4096 /dev/vg02/vtapes mke2fs 1.41.12 (17-May-2010) mkfs.ext4: Size of device /dev/vg02/vtapes too big to be expressed in 32 bits using a blocksize of 4096. Any idea? Thanks, -- Peter

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OT: Webcam with microphone compatible with CentOS 6
by C. L. Martinez 27 Sep '13

27 Sep '13

Hi all, Any recommendation about some webcam with microphone?? I need to buy one to use skype. Thanks.

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Re: [CentOS] scanner only works in su mode
by m.roth＠5-cent.us 26 Sep '13

26 Sep '13

Michael Hennebry wrote: > On Thu, 26 Sep 2013, Robert Heller wrote: > >> It looks like to use the scanner you need to edit your /etc/group file or use the user manager to add yourself to the lp group. > > That did not work. > I ran a separate login to get one that admitted I was in the lp group. Applying strace to hp-scan told me that it could not open > /dev/bus/usb/001/006 for writing. > Its owner and group are both root. I'll try again. google for centos 6 scanner ownership permissions The first hit I got is a thread on this list from '11 or last year. The last post in the thread ends with: Excerpt: Actual fix: 1) # scanimage -L device `epkowa:interpreter:001:005' is a Epson (unknown model) flatbed scanner to get the bus and the device (in the above, bus = 001; device = 005) 2) "lsusb" to get the ID # lsusb | grep -i "bus 001" | grep -i "device 005" Bus 001 Device 005: ID 04b8:0131 Seiko Epson Corp. 3) cd to the udev "sane" directory # cd /etc/udev/rules.d 4) find the "sane" configuration file. # ls | grep -i sane 60-libsane.rules 5) add an entry into the sane configuration file for your scanner. Note: the ATTRS{idVendor} is the first half of your ID above (04b8) the ATTRS{idProduct} is the second half of your ID above (0131) the name in the comments you make up yourself if you put all your users into group "users", then use "users" for the group below. If you use a different group for each user, then create a group called "scanners" (groupadd scanners), use "scanners" for the group below, and add each user to the "scanners" group # Epkowa Epson Perfection V300 ATTRS{idVendor}=="04b8", ATTRS{idProduct}=="0131", ENV{libsane_matched}="yes", MODE="0664", OWNER="root", GROUP="users" --- end excerpt --- Modify to fit your system and device. mark

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Re: [CentOS] scanner only works in su mode
by Michael Hennebry 26 Sep '13

26 Sep '13

On Thu, 26 Sep 2013, Robert Heller wrote: > It looks like to use the scanner you need to edit your /etc/group file or use > the user manager to add yourself to the lp group. That did not work. I ran a separate login to get one that admitted I was in the lp group. Applying strace to hp-scan told me that it could not open /dev/bus/usb/001/006 for writing. Its owner and group are both root. -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "On Monday, I'm gonna have to tell my kindergarten class, whom I teach not to run with scissors, that my fiance ran me through with a broadsword." -- Lily

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Re: [CentOS] scanner only works in su mode
by Michael Hennebry 26 Sep '13

26 Sep '13

On Wed, 25 Sep 2013, Robert Heller wrote: > At Wed, 25 Sep 2013 13:34:51 -0600 CentOS mailing list <centos(a)centos.org> wrote: > The proper cure for this is to add yourself to the group that udev puts the > device in. Look in /etc/udev/rules.d. Under CentOS 5 with hplip3-common > installed, this would be 55-hpmud.rules. I'm running centos 6. Googling tells me the corresponding centos 6 directory is /lib/udev/rules.d . There are no files with 55 or hp in their names, but there are 39 with the string usb . Where should I be looking? -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "On Monday, I'm gonna have to tell my kindergarten class, whom I teach not to run with scissors, that my fiance ran me through with a broadsword." -- Lily

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