Discuss November 2010

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259 participants
221 discussions

Web statistics - w3perl
by Jussi Hirvi 04 Nov '10

04 Nov '10

I am considering a richer alternative to good old Webalizer, in a webhotel (multidomain) setting. Any experience with w3perl? The demo at least looks impressive. http://www.w3perl.com - Jussi -- Jussi Hirvi * Green Spot Topeliuksenkatu 15 C * 00250 Helsinki * Finland Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms) jussi.hirvi(a)greenspot.fi * http://www.greenspot.fi

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Re: [CentOS] PATA Hard Drive woes
by Lamar Owen 04 Nov '10

04 Nov '10

>From: Keith Roberts <keith(a)karsites.net> >On Wed, 3 Nov 2010, Lamar Owen wrote: >> Might want to check the power supply as well. Bad/flakey >> power can indeed case damage to the drive surface; been >> there, done that, have two Maxtor 250GB drives with >> scribbled servo data to prove it. >OK. > I'm running the server from an APC UPS Back-UPS 650, so > there should not be any glitches in the power supply, should > there? Probably not on the AC side, although the Back-UPS 650 isn't a full online UPS but a switching standby UPS (full online, like the APC Symmetra 16KVA units I have here) rectify to DC, float the batteries at all times, and run the output from inverter all of the time (unless they're switched to bypass). The SmartUPS 1400RM I had in front of the PC that suffered the glitchy power is, unless I'm mistaken, also a full online pure sinewave UPS like the Symmetra, and is still in service (I checked its output on my oscilloscope first, though). No, I was referring to the output DC voltages (+12V, +5V, +3.3V,-5V, and -12V) from the power supply inside the system. In addition to my own personal RAID1 of 250GB drives, I also, a different time, lost a RAID5 array of 15K 36GB SCSI drives in a Dell 1600SC server; testing the power supply showed lots of noise and complete dropouts of a few milliseconds duration on the drive connectors' 5V supply pins. Completely and thoroughly scrambled the servo data on the Hitachi drives. Meaning they didn't just start showing bad sectors; they started getting seek errors. The 5V line on the drive connectors was reading an AC RMS of 4V superimposed on the +5V, yielding an effective DC voltage of 4V. Happened over a period of three weeks, during which time I had a number of mysterious failures (the Hitachi drives were error-correcting so well that by the time they started reporting errors, it was way past too late, and it became impossible for the Hitachi drives to even power up). I found that the power supply in question, upon investigation, provided the motherboard (where the DC power sensors on that box are) with clean 5V, and the drives were powered from a separate 5V rail, meaning the Dell management system wasn't seeing the power problems. A simple power supply tester with a built-in meter can be bought for less than $20; a more thorough power analyzer will run more than that. But even the simple one caught the failing Dell 1600SC supply. It took an oscilloscope to test the Antec in my personal box; turned out it was a cold solder joint in the Antec. A new power supply is less expensive than the equivalent labor it took to fix the Antec. I keep a known good 500W ATX 12V server-grade (8 pin 12V plug with adapters, and 24-pin ATX plug with 20-pin adapter) around for testing; that's one of the very first things I check when a PC is brought in that is flaky. (The very first thing is the dust accumulation, and the second thing is the heatsink compound). One of the first things I do on any CentOS system I put together is install lm_sensors and gkrellm (gkrellm from a third-party repo). I then enable all the motherboard sensors that are available in the gkrellm plugins, and run it (either local GUI or through ssh X forwarding to my central monitoring PC). On supermicro boards I install SuperODoctor for Linux, available on the supermicro site. The GUI runs well (there are some odd dependencies, however) and will e-mail you on alarm conditions that you can set. These include fan RPM, temperatures, and voltages. The CLI program isn't quite so sophisticated, but it can be run periodically and the result sent by e-mail for health checks. Drives that are having trouble will show up with high iowaits; run iostat (from the sysstat package) and look at the await result. Long awaits mean the drive is having trouble (or it has firmware issues like WD's EARS and EADS drives have in RAID configurations).

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kernel bug fixed in later kernels
by Philip Manuel 04 Nov '10

04 Nov '10

Does anyone know if this is going to be fixed in CentOS ? // test case code below // expected behaviour is "all good" and a return code of zero. // this works on 2.6.35-1 // does not work on 2.6.18-194.17.4.el5 from Centos 5.5 // think this bug was fixed in git commit 8948e11f450e6189a79e47d6051c3d5a0b98e3f3 // around 2.6.22 // http://www.mail-archive.com/git-commits-head@vger.kernel.org/msg11654.html #include <fcntl.h> #include <stdio.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> int main(int argc, char** argv) { int fd = open("foo", O_RDONLY); if (setuid(1000)) { printf("could not setuid, run as root with correct uid\n"); return 1; } char proc_name[1024]; sprintf(proc_name, "/proc/self/fd/%d", fd); struct stat stat_buf; int rc = stat(proc_name, &stat_buf); if (rc == 0) { printf("all good\n"); } else { printf("busted, could not access %s\n", proc_name); } return rc; }

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CentOS-announce Digest, Vol 69, Issue 2
by centos-announce-request＠centos.org 03 Nov '10

03 Nov '10

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-2010:0817 Low CentOS 3 i386/x86_64 CentOS-3 - End Of Life (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 3 Nov 2010 11:56:09 +0100 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2010:0817 Low CentOS 3 i386/x86_64 CentOS-3 - End Of Life To: centos-announce(a)centos.org Message-ID: <20101103105609.GA32735(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2010:0817 End Of Life security update for CentOS 3: https://rhn.redhat.com/errata/RHSA-2010-0817.html As per the upstream vendors errata support policy, updates for CentOS-3 has ended on October 31th 2010. It is recommended that any system still running CentOS 3 should be upgraded to a more recent version of CentOS before this date to ensure continued security and bug fix support. see also http://wiki.centos.org/HowTos/EOLC3 Thank you to everyone who helped make this project possible. Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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SCSI/SAS error message by mpt2sas.ko
by Alexander Dalloz 03 Nov '10

03 Nov '10

Dear all, actually I installed CentOS 5.4 x86_64 on 11 new Dell R710 servers. It is required to use 5.4 to be covered by the NetApp Interoperability Matrix for use of Snapdrive. All systems spit out the error message mpt2sas0: failure at drivers/scsi/mpt2sas/mpt2sas_scsih.c:4637/_scsih_add_device()! at boot time. In dmesg the complete SCSI initialization logging appears as follows: SCSI subsystem initialized mpt2sas version 01.101.00.00 loaded scsi0 : Fusion MPT SAS Host GSI 22 sharing vector 0x5A and IRQ 22 ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 33 (level, low) -> IRQ 90 PCI: Setting latency timer of device 0000:03:00.0 to 64 mpt2sas0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (24544400 kB) mpt2sas0: PCI-MSI-X enabled: IRQ 98 mpt2sas0: iomem(0xdf2b0000), mapped(0xffffc20000040000), size(65536) mpt2sas0: ioport(0xfc00), size(256) mpt2sas0: sending diag reset !! [...] mpt2sas0: diag reset: SUCCESS mpt2sas0: Allocated physical memory: size(1125 kB) mpt2sas0: Current Controller Queue Depth(490), Max Controller Queue Depth(3439) mpt2sas0: Scatter Gather Elements per IO(128) mpt2sas0: LSISAS2008: FWVersion(02.15.63.00), ChipRevision(0x02), BiosVersion(07.01.09.00) mpt2sas0: Protocol=(Initiator,Target<6>mpt2sas0: Dell PERC H200 Integrated: Vendor(0x1000), Device(0x0072), SSVID(0x1028), SSDID(0x1F1E) ), Capabilities=(Raid,TLR,EEDP,Snapshot Buffer,Diag Trace Buffer,Task Set Full,NCQ) mpt2sas0: sending port enable !! mpt2sas0: host_add: handle(0x0001), sas_addr(0x5842b2b0194dce00), phys(8) mpt2sas0: failure at drivers/scsi/mpt2sas/mpt2sas_scsih.c:4637/_scsih_add_device()! mpt2sas0: port enable: SUCCESS Vendor: Dell Model: Virtual Disk Rev: 1028 Type: Direct-Access ANSI SCSI revision: 06 scsi 0:1:0:0: RAID1: handle(0x004f), wwid(0x04adb846d46d5f0a), pd_count(2), type(SSP) scsi 0:1:0:0: qdepth(128), tagged(1), simple(1), ordered(0), scsi_level(7), cmd_que(1) SCSI device sda: 285474816 512-byte hdwr sectors (146163 MB) sda: Write Protect is off sda: Mode Sense: 03 00 00 08 SCSI device sda: drive cache: write through SCSI device sda: 285474816 512-byte hdwr sectors (146163 MB) sda: Write Protect is off sda: Mode Sense: 03 00 00 08 SCSI device sda: drive cache: write through sda: sda1 sda2 sda3 sd 0:1:0:0: Attached scsi disk sda Vendor: FUJITSU Model: MBA3147RC Rev: D306 Type: Direct-Access ANSI SCSI revision: 05 scsi 0:0:0:0: SSP: handle(0x000a), sas_addr(0x500000e1150ca882), device_name(0x0000000000000000) scsi 0:0:0:0: SSP: enclosure_logical_id(0x5842b2b0194dce00), slot(1) scsi 0:0:0:0: qdepth(254), tagged(1), simple(1), ordered(0), scsi_level(6), cmd_que(1) Vendor: FUJITSU Model: MBA3147RC Rev: D306 Type: Direct-Access ANSI SCSI revision: 05 scsi 0:0:1:0: SSP: handle(0x000b), sas_addr(0x500000e1150ca9c2), device_name(0x0000000000000000) scsi 0:0:1:0: SSP: enclosure_logical_id(0x5842b2b0194dce00), slot(0) scsi 0:0:1:0: qdepth(254), tagged(1), simple(1), ordered(0), scsi_level(6), cmd_que(1) In the source code of the mpt2sas.ko module http://www.takatan.net/lxr/source/drivers/scsi/mpt2sas/mpt2sas_scsih.c?v=2.… the code part responsible for the error messages is 4633 /* check if this is end device */ 4634 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 4635 if (!(_scsih_is_end_device(device_info))) { 4636 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 4637 ioc->name, __FILE__, __LINE__, __func__); 4638 return 0; 4639 } I am not sure what that should tell me. I can not detect any misfunction once the systems are up and running, nor any further error loggings. Any clue about the severity of that mpt2sas check and failure note? Best regards Alexander

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Re: [CentOS] yum update
by Ritika Garg 03 Nov '10

03 Nov '10

Does the file /var/log/yum.log store the information of the last 7 days because I did some updates on 27October which are not there in the file.

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cannon printer not printing
by Ritika Garg 03 Nov '10

03 Nov '10

Printer: Cannon MF4320d. I gave the command "lpr NNInteraction_Poster.pdf", then typed "lpq" which shows MF4320-4350_(UFRII_LT) is ready and printing Rank Owner Job File(s) Total Size active Ritika 636 NNInteraction_Poster.pdf 549888 bytes After a while "lpq" command returns: MF4320-4350_(UFRII_LT) is ready no entries But no printout is there. Is the driver missing? But then MF4320-4350_(UFRII_LT) will not come. What might be the problem?

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Re: [CentOS] system logs out suddenly
by Ritika Garg 03 Nov '10

03 Nov '10

I updated libX11 and the problem is solved. Maybe the updated firefox and xulrunner are not compatible with the older version.

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Building Samba RPM packages for RHEL/CentOS 5 - Needed corrections to the .spec file
by Miguel Medalha 03 Nov '10

03 Nov '10

I just built from source the Samba 3.5.6 RPM packages for CentOS 5.x/RHEL5.x. I found some glitches in the included samba.spec file and I thought someone else might benefit from my recent experience. The spec file for RHEL/CentOS resides, on the sources tree, under "samba-3.5.6\packaging\RHEL\". 1 - The process initially fails due to a dependency problem: missing "keyutils-devel". Change the respective entry on line 31 (BuildRequires:) to "keyutils-libs-devel" (yum install this file from the repositories if needed). 2 - Although it is called by the packaging process, the "umount.cifs" file is not compiled and therefore cannot be found in sources3/bin at the moment of packaging. Therefore, the RPM build process fails. Either comment the references to the file from lines 237, 396 and 414, if you don't need this function, or add the following to the ./configure command, starting on line 137: --with-cifsumount The default for this parameter is "no", and therefore it is not included in the "configure" process as is. 3 - The RPM build process finally fails because some files, which were compiled and copied to the temporary tree, are not called by the packaging process. The following lines must be included on the spec file, under "Files section": /usr/share/locale/de/LC_MESSAGES/net.mo %{_includedir}/wbc_async.h %{_mandir}/man5/pam_winbind.conf.5.gz I suggest you include them close to related lines (same paths) for the sake of clarity. After these corrections the build of the RPM packages went on with no errors and was successful. All the packages installed correctly afterward. I hope these tips will be useful to someone. PS - The sources for Samba 3.5.6 are here: http://www.samba.org/ Before building, you might be interested in patching the sources with the patch provided by Volker Lendecke to improve compliance with Windows ACLs. The patch is here, thanks to Volker: http://samba.org/~jra/samba-3-5-x-acl-jumbo-patch.tgz patch -b -p1 < jumbo-patch-3-5-6.diff After applying the patch and modifying the .spec file you can proceed to the building process. cd to "/usr/src/redhat/SOURCES/samba-3.5.6/packaging/RHEL" and execute the "makerpms.sh" script there.

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projects.centos.org down again
by Glenn Eychaner 02 Nov '10

02 Nov '10

> Garry Dale wrote: >> There is an open bug report from 2009-09-21 with a similar summary [1]. >> Since bug 3858 was never closed, I've updated the notes. > > Per updates to bug tracker, the projects.centos.org site is back online. > > Should bug 3858 [1] now be closed, or is it acting as a placeholder for > events such as this? Just curious... Well, projects.centos.org was up briefly over the weekend, but appears (from my end) to be down again, same symptoms; HTTP connections just hang. Next time I'll download the LiveCD instructions I'm looking for to a static file! -G. -- Glenn Eychaner (geychaner(a)lco.cl) Telescope Systems Programmer, Las Campanas Observatory

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CentOS-announce Digest, Vol 69, Issue 1
by centos-announce-request＠centos.org 02 Nov '10

02 Nov '10

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-2010:0812 Moderate CentOS 4 i386 thunderbird - security update (Tru Huynh) 2. CESA-2010:0812 Moderate CentOS 4 x86_64 thunderbird - security update (Tru Huynh) 3. CESA-2010:0811 Important CentOS 5 i386 cups Update (Tru Huynh) 4. CESA-2010:0811 Important CentOS 5 x86_64 cups Update (Tru Huynh) 5. CESA-2010:0812 Moderate CentOS 5 i386 thunderbird Update (Tru Huynh) 6. CESA-2010:0812 Moderate CentOS 5 x86_64 thunderbird Update (Tru Huynh) 7. CESA-2010:0819 Moderate CentOS 5 i386 pam Update (Tru Huynh) 8. CESA-2010:0819 Moderate CentOS 5 x86_64 pam Update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Mon, 1 Nov 2010 22:24:26 +0100 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2010:0812 Moderate CentOS 4 i386 thunderbird - security update To: centos-announce(a)centos.org Message-ID: <20101101212426.GA17456(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2010:0812 thunderbird security update for CentOS 4 i386: https://rhn.redhat.com/errata/RHSA-2010-0812.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/thunderbird-1.5.0.12-33.el4.centos.i386.rpm source: updates/SRPMS/thunderbird-1.5.0.12-33.el4.centos.src.rpm You may update your CentOS-4 i386 installations by running the command: yum update thunderbird Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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openldap fails to authenticate
by Tim Dunphy 02 Nov '10

02 Nov '10

I am attempting to setup an LDAP server under CentOS 5.4. However I am unable to search my ldap directory even tho I am supplying the proper credentials for the Manager account: [root@ldap openldap]# ldapsearch -x -h ldap -D 'cn=Manager,dc=example,dc=net' -W -b 'dc=example,dc=net' Enter LDAP Password: ldap_bind: Invalid credentials (49) Anonymous searches do work however: ldapsearch -x -h ldap -b "dc=example,dc=net" -s sub "objectclass=*" [root@ldap openldap]# ldapsearch -x -h ldap -b "dc=example,dc=net" -s sub "objectclass=*" # extended LDIF # # LDAPv3 # base <dc=example,dc=net> with scope subtree # filter: objectclass=* # requesting: ALL # # search result search: 2 result: 32 No such object I am currently attempting to use the actual word 'secret' to authenticate the Manager account: database bdb suffix "dc=example,dc=net" rootdn "cn=Manager,dc=example,dc=net" # Cleartext passwords, especially for the rootdn, should # be avoided. See slappasswd(8) and slapd.conf(5) for details. # Use of strong authentication encouraged. rootpw secret # rootpw {CRYPT}secret And I am getting error 49's in my openldap logs with loglevel set to 296 /var/log/openldap.log Nov 2 15:45:58 ldap slapd[3522]: slapd starting Nov 2 15:46:14 ldap slapd[3522]: conn=0 fd=11 ACCEPT from IP=127.0.0.1:44552 (IP=0.0.0.0:389) Nov 2 15:46:14 ldap slapd[3522]: conn=0 op=0 BIND dn="cn=Manager,dc=example,dc=net" method=128 Nov 2 15:46:14 ldap slapd[3522]: conn=0 op=0 RESULT tag=97 err=49 text= Nov 2 15:46:14 ldap slapd[3522]: conn=0 fd=11 closed (connection lost) this is how I have configured my ldap.conf BASE dc=example,dc=net HOST localhost URI ldap://ldap.example.net and for some reason slapd is listening on port 3774 even tho I haven't told it to: [root@ldap network-scripts]# netstat -tulnp | grep 389 tcp 0 0 0.0.0.0:389 0.0.0.0:* LISTEN 3774/slapd [root@ldap network-scripts]# netstat -tulnp | grep slapd tcp 0 0 0.0.0.0:389 0.0.0.0:* LISTEN 3774/slapd I haven't specified port 3774 _anywhere_ in my ldap config: [root@ldap network-scripts]# grep 3774 /etc/ldap thanks in advance for your help -- Here's my RSA Public key: gpg --keyserver pgp.mit.edu --recv-keys 5A4873A9 Share and enjoy!!

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Best supported motherboard
by Basil Kurian 02 Nov '10

02 Nov '10

Which among these three motherboard is the best supported in Linux (Centos/Ubuntu) ? Intel® Desktop Board DH55HC [ http://ark.intel.com/Product.aspx?id=42409 ] Intel® Desktop Board DP55WG [ http://ark.intel.com/Product.aspx?id=40078 ] Intel® Desktop Board DP55KG [ http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.h…] Also which will be a good processor , for using in a desktop PC to run 4 or 5 Virtual machines concurrently on VirtualBox or VMWare ESX server ? Intel® Xeon® Processor X3460 [ http://ark.intel.com/Product.aspx?id=42931 ] or Intel® Core™ i7-870S [ http://ark.intel.com/Product.aspx?id=48498 ] -- Regards Basil Kurian http://basil.co.nr RSA Public key : gpg --keyserver pgp.mit.edu --recv-keys 41005549

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problem sending/recieving mails
by maina＠linuxmail.org 02 Nov '10

02 Nov '10

Hi all, I ave setup a CentOS server to act as LAN gateway and also as a transparent proxy server but all client "passing through" that server are enable to send or recieve mails. The mail server is host on the same LAN running mdaemon, both servers are on private IP block(192.168.0.0/24). Am using cisco router to do port forwading for mailserver(25,110,143) ports. If i eliminate CentOS box and direct traffic direct to cisco router everything works. My question is why is it when i use CentOS box as LAN gateway clients are unable to send/receive mails? I ave done nating on that box. Centos 5.5 full updated.

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graphics error
by Ritika Garg 02 Nov '10

02 Nov '10

When I was running an application then on pressing a key the following message came: X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 42 (X_SetInputFocus) Serial number of failed request: 7345 Current serial number in output stream: 7347 It seems to be something related to graphics, but can't understand. After the above error came the application got terminated.

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yum update
by Ritika Garg 02 Nov '10

02 Nov '10

I have updated certain packages through applications->system tools->software updater. Is there any command by which I can know which softwares I had updated?

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Re: [CentOS] system logs out suddenly
by Ritika Garg 02 Nov '10

02 Nov '10

The graphics controller is Intel Corporation 82G33/G31 Express Integrated Graphics Controller This problem is occuring since the time I have updated firefox. Also whenever I open facebook the system hangs and sometimes logs out. But sites like yahoo, gmail, orkut are opening.

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sound
by mattias 01 Nov '10

01 Nov '10

Are the sound muted as default?

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grub irritants
by m.roth＠5-cent.us 01 Nov '10

01 Nov '10

It appears that if I do anything to grub.conf, say, take out the rhgb quiet, after every succeding kernel update, I have to manually edit grub.conf, because the kernel update - maybe the post install script? - will set the default to be the previous kernel. Has anyone got a solution to this, so that a kernel update will give the new kernel as the default? mark

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Geany plugins out of sync
by Eduardo Grosclaude 01 Nov '10

01 Nov '10

I'm intending to do some version control, hence looking for some plugins. Geany and geany-plugins packages in Rpmforge seem to be out of sync: Name : geany-plugins Arch : i386 Version : 0.18 Release : 1.el5.rf Name : geany Arch : i386 Version : 0.19.1 Release : 1.el5.rf When both are installed, geany claims that plugins are not "binary-compatible". Frank's own hosted geany RPM (http://www.melvilletheatre.com/articles/el5/geany-0.19.1-1.i386.rpm) is even newer, but no geany-plugins there. Any chance for this to be repackaged? Or, some quick & dirty workaround? Thank you very much in advance! -- Eduardo Grosclaude Universidad Nacional del Comahue Neuquen, Argentina

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system logs out suddenly
by Ritika Garg 01 Nov '10

01 Nov '10

I have CentOS5.3 installed on the system. I have updated firefox to firefox-3.6.11-2.el5.centos. While doing any work on the internet, suddenly the system logs out. What can be the problem?

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Discuss November 2010