Discuss January 2011

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289 discussions

Re: [CentOS] Centos 5.5 - Kernel Panic while booting.
by David Latham 06 Jan '11

06 Jan '11

Hi, When I make DVDs of Centos and any others for that matter, I take the following steps: 1. Find an official torrent if possible. (Centos has torrents for the DVD. Unfortunately no Jigdo so far as I know.) 1.1 Torrents come with checksums and the torrent app I use will check the downloaded file against the checksums. Otherwise find a stable mirror close to where you are for better speed. 1.2 If you cant get a torrent find out if the distro vendors offer any other options. IE: Jigdo, zsync etc. etc. I usually try for one of these before going for a strait FTP download. FTP downloads often fail and are not always recoverable in the event of an interruption. Jigdo is my favourite as each and every package and file is downloaded and verified and then the DVD image (.iso) made up from all the packages. It is basically a self checking system and has proven to be very reliable. 2. Once the file is downloaded do a binary checksum using the official checksums found on the vendors homepage or mirror you downloaded from. Information on how to call sha512sum or any checksum tool to make it do a binary level checksum can be found in the man pages. (sha512sum -b filename.iso) I always go for the largest checksum algorithm provided. IE: SHA512SUM if available otherwise SHA256SUM, SHA1SUM or as a last resort MD5SUM. If this passes proceed to step 3. 3. Burning the DVD. This step is the trickiest part to get right. 3.1. Find **reliable** media. Always choose DVD-R. Go with a named brand. I usually go for spindles of 50 or less. I have found that the 100 unit spindles get a bit heavy on the ones at the bottom and I am unsure of the effect shipping and handling has on them. 3.2. Use the following wodim command: "/usr/bin/wodim dev=/dev/sr0 driveropts=burnfree fs=14M speed=4 -dao ${ISO_FILENAME}" where /dev/sr0 is your DVD device and ${ISO_FILENAME} is your iso you are trying to burn. to burn the DVD at the slowest possible speed your DVD burner will go for. Use DISK AT ONCE (dao) to write the whole file in one go. Wodim will close the disk session after burning. I know nothing about using windows tools to burn DVDs as I do this on Linux. 4. Check the media against the official checksum you used in step 2. Here are my steps for doing this. Again this has to be done right. Sometimes you will get different results if you try to simply call sha512sum -b /dev/sr0 where /dev/sr0 is your DVD drive. 4.1. Use the isoinfo tool to retreive the blocksize and blockcount of the DVD you are checking. (/usr/bin/isoinfo -d -i /dev/sr0 where /dev/sr0 is your DVD device.) 4.2. Use dd to read the disk using the correct blocksize and blockcount settings and pipe through the checksum tool. IE: "/bin/dd if=/dev/sr0 bs=${blocksize} count=${blockcount} conv=notrunc,noerror status=noxfer | sha512sum -b" where ${blocksize} and ${blockcount} are the numbers you retrieved from using isoinfo. conv=notrunc,noerror come from another post I found once. So far so good... The dd man page explains that notrunc means do not truncate the output file and noerror means continue after read errors. status=noxfer is just to keep the whole thing a little quieter by not displaying transfer statistics. You can play with these settings if you like. They have done me fine for over 400 burns since I started doing this over 2 years ago. This will produce a checksum you can visually compare with the official checksum you retrieved from the mirrors to confirm if your disk is good. I do not know of a better way, without actually installing the OS, of verifying that the media is good. I have all this scripted so complete all these steps every time I ship a DVD to any customer who orders one. Best regards David Latham http://www.thelinuxcdstore.com > Message: 1 > Date: Mon, 03 Jan 2011 13:37:17 -0500 > From: "Lisandro Grullon" <lgrullon(a)CityTech.Cuny.Edu> > Subject: Re: [CentOS] Centos 5.5 - Kernel Panic while booting. > To: <amyagi(a)gmail.com> > Cc: centos(a)centos.org > Message-ID: <4D21D10D020000890000F53B(a)email2.citytech.cuny.edu> > Content-Type: text/plain; charset="us-ascii" > > This was very helpful Akemi...I was loading centos in two other identical servers today and was having such a hard time loading it from DVD, DVD appears to be crashing, I even re-downloaded the image 3 times from three different mirrors and burn them with different applications (Nero, Roxio, and poweriso), worse case scenario it must be something with the Memorex DVD Media. Anyway, after two hours of trying I decided to do a network install and everything went flawless. Good to have many options, Centos rocks! > >>>> Akemi Yagi 12/17/10 8:13 PM >>> > On Fri, Dec 17, 2010 at 5:11 PM, Lisandro Grullon > wrote: >> Akemi, >> I went through the different mirrors and was unable to locate the ISO as it >> is stated as deprecated or unsupported, is there any plans to fix this issue >> in 5.6 or rather 6.x release. It appears that the latest build from Centos >> was built back in may, lots of bugs have emerge since them including this >> one relating to a kernel panic. Please advise in the location of 5.4, i am >> willing to try it. > > It's here: > > http://vault.centos.org/5.4/ > > Akemi > >

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Compiling thunderbird
by lhecking＠users.sourceforge.net 06 Jan '11

06 Jan '11

I'm following this thread here http://www.centos.org/modules/newbb/viewtopic.php?topic_id=23749&forum=38 to build an rpm for thunderbird 3.1.6/3.1.7 from source. While it works well on i386, compilation fails for x86_64. Any advice how to fix the spec file? ... rm -f libthebes.so c++ -fno-rtti -fno-exceptions -Wall -Wpointer-arith -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -Wcast-align -Wno-invalid-offsetof -Wno-long-long -pedantic -fno-strict-aliasing -fshort-wchar -pthread -pipe -DNDEBUG -DTRIMMED -Os -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -I/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/include/cairo -I/usr/include/gtk-2.0 -I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/gtk-unix-print-2.0 -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/freetype2 -fPIC -shared -Wl,-z,defs -Wl,-h,libthebes.so -o libthebes.so cairo-xlib-utils.o woff.o gfxASurface.o gfxAlphaRecovery.o gfxBlur.o gfxContext.o gfxImageSurface.o gfxFont.o gfxFontMissingGlyphs.o gfxFontTest.o gfxFontUtils.o gfxMatrix.o gfxPath.o gfxPattern.o gfxPlatform.o gfxPlatformFontList.o gfxRect.o gfxSkipChars.o gfxTextRunCache.o gfxTextRunWordCache.o gfxUserFontSet.o gfxPangoFonts.o gfxXlibSurface.o gfxPlatformGtk.o gfxGdkNativeRenderer.o gfxPDFSurface.o gfxPSSurface.o gfxFontconfigUtils.o gfxFT2FontBase.o gfxFT2Utils.o nsUnicodeRange.o -lpthread -Wl,-rpath,/usr/lib64/thunderbird-3.1 -Wl,-rpath-link,/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/bin -Wl,-rpath-link,/usr/lib ../../../gfx/cairo/cairo/src/libmozcairo.a ../../../gfx/cairo/libpixman/src/libmozlibpixman.a -L/usr/lib64 -lXrender -lfreetype -lfontconfig /usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/lib/libunicharutil_s.a -L/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/bin -lxpcom -lxpcom_core -L/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/lib -lplds4 -lplc4 -lnspr4 -lpthread -ldl -lz ../../../gfx/qcms/libmozqcms.a ../../../gfx/ots/src/libmozots.a -L/lib64 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lz -L/usr/lib64 -lX11 -L/lib64 -lgtk-x11-2.0 -latk-1.0 -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lasound -ldl -lm /usr/bin/ld: gfxUserFontSet.o: relocation R_X86_64_PC32 against `ots::Process(ots::OTSStream*, unsigned char const*, unsigned long, bool)' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value collect2: ld returned 1 exit status --------------------------------------------------------------- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. ---------------------------------------------------------------

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CentOS-announce Digest, Vol 71, Issue 1
by centos-announce-request＠centos.org 06 Jan '11

06 Jan '11

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-2011:0004 Important CentOS 5 i386 kernel Update (Karanbir Singh) 2. CESA-2011:0004 Important CentOS 5 x86_64 kernel Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Thu, 6 Jan 2011 12:23:15 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2011:0004 Important CentOS 5 i386 kernel Update To: centos-announce(a)centos.org Message-ID: <20110106122315.GA18304(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2011:0004 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-0004.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 7b014beebd94699f73c4def3cf42904a kernel-2.6.18-194.32.1.el5.i686.rpm 182d647cbabd24ed7e55be10ac1a1ee5 kernel-debug-2.6.18-194.32.1.el5.i686.rpm aa4bd8b6980a41184a3855a3d740c069 kernel-debug-devel-2.6.18-194.32.1.el5.i686.rpm e4773418e9d6283e992581bc705c8586 kernel-devel-2.6.18-194.32.1.el5.i686.rpm 565ace179f1d13b815b6e7bab64fd96f kernel-doc-2.6.18-194.32.1.el5.noarch.rpm 3f62ab7e59436c2c70e3c19c1fb5a6fd kernel-headers-2.6.18-194.32.1.el5.i386.rpm 31aba283f0836439ba636486e25b0b99 kernel-PAE-2.6.18-194.32.1.el5.i686.rpm 3522478de8f3b8d04d1efae090b5d686 kernel-PAE-devel-2.6.18-194.32.1.el5.i686.rpm 2043535dbc092bc48b841161a85727b5 kernel-xen-2.6.18-194.32.1.el5.i686.rpm 3f72b85c494ede0281f42f44ccab7aee kernel-xen-devel-2.6.18-194.32.1.el5.i686.rpm Source: 621b12f22bfde971ac50d6fddea06c50 kernel-2.6.18-194.32.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Thu, 6 Jan 2011 12:23:15 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2011:0004 Important CentOS 5 x86_64 kernel Update To: centos-announce(a)centos.org Message-ID: <20110106122315.GA18321(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2011:0004 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-0004.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 956733c501183a6354ebcee2774b0c30 kernel-2.6.18-194.32.1.el5.x86_64.rpm 64f6fbdf7520e6d83dec94d8c07e4589 kernel-debug-2.6.18-194.32.1.el5.x86_64.rpm e6e7c3d69b4ed902788555979eb6da10 kernel-debug-devel-2.6.18-194.32.1.el5.x86_64.rpm f1c12f7e7c579e1362c5f6efe9d5ec15 kernel-devel-2.6.18-194.32.1.el5.x86_64.rpm af191f7f689b172db4bc1d70ee7f3988 kernel-doc-2.6.18-194.32.1.el5.noarch.rpm 4be0a1ad9335fdeb7d781fd43c3756e8 kernel-headers-2.6.18-194.32.1.el5.x86_64.rpm f3f93494d59f8b13a4b99c40a0f7a889 kernel-xen-2.6.18-194.32.1.el5.x86_64.rpm ab5c8fee67ff44dc4a5bf3cb05da2306 kernel-xen-devel-2.6.18-194.32.1.el5.x86_64.rpm Source: 621b12f22bfde971ac50d6fddea06c50 kernel-2.6.18-194.32.1.el5.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 71, Issue 1 **********************************************

1 0

poppassd and different password
by fakessh＠fakessh.eu 06 Jan '11

06 Jan '11

hello centos network I installed poppassd (the deposit razor edge) to change easily passwords of users of my system I allow connections on port 106 that locally I have configured pam I did install the plugin roundcubemail password in webmail everything seems to work well my question is simple on my system for some users, I built chrooted well I manage to change the password of users with the interface roundcubemail webmail but I wonder if the password and changes in the chroot or also to the outside of the chroot question may seem stupid but I do not know ... any comments are welcome sincerely nb: Happy New Year -- http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x092164A7 gpg --keyserver pgp.mit.edu --recv-key 092164A7

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how to access external USB drive in single user mode
by Agnello George 06 Jan '11

06 Jan '11

how to access external USB drive in single user mode Thanks -- Regards Agnello D'souza

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[OT] RHEVM List
by Simon Grinberg 06 Jan '11

06 Jan '11

Test

1 0

Re: [CentOS] RHEVM List
by Simon Grinberg 06 Jan '11

06 Jan '11

test

1 0

OT how to prevent oversubscription of a disk
by Dave 06 Jan '11

06 Jan '11

I want to add up the quotas I've assigned on a particular partition and see if the total is bigger than the disk. It's possible to do this (awkwardly) using repquota or quota. Is there no more accurate/elegant way? I can't be the first person to worry that more quota has been issued than the disk can supply. mahalo and Happy New Year, Dave -- Q: Why should this email be 5 sentences or less? A: http://five.sentenc.es

7 11

recursively find duplicate filenames
by S Mathias 06 Jan '11

06 Jan '11

find duplicate filenames in a folder find | perl -ne 's!([^/]+)$!lc $1!e; print if 1 == $seen{$_}++' find duplicate filenames in a folder recursively ? how?

10 11

check, that a script is in a folder
by S Mathias 06 Jan '11

06 Jan '11

$ echo ${PWD##*/} somefolder $ if "${PWD##*/}" -eq "asdf" > /dev/null; then echo "this is the asdf folder"; else exit 1; fi bash: notthatfolder: command not found... this is the asdf folder $ So i just want to check that i'm in an exact folder. e.g.: "asdf" What's wrong with my one-liner? I just want to check, that a script is in a folder, and if it isn't, then it exits

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Discuss January 2011