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ext3 heavy file fragmentation with NFS write
by Andrzej Szymański 04 Mar '09

04 Mar '09

Hello, Does anybody know how to avoid the file fragmentation when a file is created over NFSv3? A file created locally is OK: dd bs=32k if=/dev/zero of=test count=32x1024 conv=fsync filefrag test test: 10 extents found, perfection would be 9 extents When I create the file in the same dir, but from another machine, mounted over NFS: filefrag test test: 4833 extents found, perfection would be 9 extents With such a file a sequential read is quite slow (~76MB vs >200MB on my raid card). I can just suspect that this is a problem of block allocation when the same file is appended by different processes (8 NFS threads). I've tried mounting ext3 with -o reservation and switch to NFS over TCP, with no improvement. Both systems are Centos 5.2 with kernel 2.6.18-92.1.22.el5 The ext3 is mounted with rw,nosuid,nodev,usrquota,grpquota,acl NFS export: rw,sync,no_root_squash 8 NFS threads. Remotely mounted with options rw,intr,nfsvers=3,proto=udp,rsize=32768,wsize=32768 I would be very grateful for any help. Andrzej

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Centos 5.2 and Adaptec AIC-9410
by Maxim Odinintsev 04 Mar '09

04 Mar '09

Good Day! We have some troubles with installation of CentOS 5.0 on Supermicro server with Adaptec AIC-9410 SAS Controller, but installation complete successfully on CentOS 4.5. This issue has been solved in version 5.2? Or it will be solved in version 5.3? Sorry for my English ;( -- wbr - Maxim Odinintsev

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Why are multiple architecture rpms installed?
by Marten Lehmann 04 Mar '09

04 Mar '09

Hello, I noticed, that whenever I install a package on CentOS 5.x, rpms for multiple architectures are installed: yum install sqlite-devel Loading "fastestmirror" plugin Loading mirror speeds from cached hostfile * base: centos.intergenia.de * updates: centos.intergenia.de * addons: centos.intergenia.de * extras: centos.intergenia.de base 100% |=========================| 1.1 kB 00:00 updates 100% |=========================| 951 B 00:00 addons 100% |=========================| 951 B 00:00 extras 100% |=========================| 1.1 kB 00:00 Setting up Install Process Parsing package install arguments Resolving Dependencies --> Running transaction check ---> Package sqlite-devel.x86_64 0:3.3.6-2 set to be updated ---> Package sqlite-devel.i386 0:3.3.6-2 set to be updated --> Finished Dependency Resolution Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: sqlite-devel x86_64 3.3.6-2 base 260 k sqlite-devel i386 3.3.6-2 base 260 k Transaction Summary ============================================================================= Install 2 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 520 k Is this ok [y/N]: y Downloading Packages: (1/2): sqlite-devel-3.3.6 100% |=========================| 260 kB 00:01 (2/2): sqlite-devel-3.3.6 100% |=========================| 260 kB 00:01 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing: sqlite-devel ######################### [1/2] Installing: sqlite-devel ######################### [2/2] Installed: sqlite-devel.x86_64 0:3.3.6-2 sqlite-devel.i386 0:3.3.6-2 Complete! Thats pretty annoying, because an "rpm -qa | grep sqlite" only shows the package name, not the arch: sqlite-3.3.6-2 sqlite-devel-3.3.6-2 sqlite-3.3.6-2 sqlite-devel-3.3.6-2 When I later want to remove rpms, I always have to mention both archs explicitly: rpm -e sqlite-3.3.6-2.i386 rpm -e sqlite-3.3.6-2.x64_86 And sometimes packages have arch i686 as well. Or I get an error: rpm -e sqlite error: "sqlite" specifies multiple packages First I thought, that this might be an issue due to 32bit compatibility. But then I remembered, that I used CentOS 4 on 64bit, too, and there was no such problem. How can I get rid of it? Kind regard Marten

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Need Broadcom 4311 firmware for CentOS 5
by Robert Nichols 04 Mar '09

04 Mar '09

Any hope of getting my laptop's Broadcom BCM94311 wireless running on CentOS 5? I find lots of references to using fwcutter to get the needed firmware from Windows drivers, but there's a Catch-22: Version of fwcutter that generate files for the bcm43xx driver in CentOS 5 don't recognize the md5sum of any currently available Windows driver. Newer versions of fwcutter do recognize my Windows XP driver files, but generate output in a newer format that is not compatible with the bcm43xx driver. I've been searching and fighting this for quite some time. I have a Fedora 10 installation that runs the wireless just fine on that laptop (Lenovo 3000 N200), but I really hate the churn and instability of Fedora. I was hoping that CentOS 5.3 might include a backported b43 driver, but I grabbed a preliminary version of the new kernel (2.6.18-132), and it still has the old bcm43xx.ko driver. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.

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Fail2Ban
by Devraj Mukherjee 04 Mar '09

04 Mar '09

Hi all, I am trying to get fail2ban going on my server and its log message reports the following error 2009-02-16 17:42:05,339 ERROR: 'iptables -L INPUT | grep -q fail2ban-SSH' returned 256 2009-02-16 17:42:05,354 ERROR: 'iptables -D INPUT -p tcp --dport ssh -j fail2ban-SSH Is this because of the way the RedHat tool sets up the firewall? Thanks for any responses. -- "The secret impresses no-one, the trick you use it for is everything" - Alfred Borden (The Prestiege)

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Re: [CentOS] (a) WinPower RPM available? (b) where to install if use tar.gz file? [Solved]
by Lanny Marcus 03 Mar '09

03 Mar '09

On Fri, Feb 27, 2009 at 9:51 AM, Lanny Marcus <lmmailinglists(a)gmail.com> wrote: > Two quick and simple questions; I want to install the "WinPower" > software for my new UPS. On their web site, they have a tar.gz file > available for download. I know the reasons for staying with RPM, if at > all possible. I've Googled and Yahood for ""WinPower"+RPM+Linux and > get hits, but no obvious RPM. I tried "yum install winpower" and the > response was "no package winpower available" (rpmforge is one of the > yum repositories I use, so it's not there, with that name). > I read the documentation, again, very slowly..... Their default configuration is not set up to Shutdown the box the UPS is connected to. Once I changed the configuration, the test went perfectly. :-) This wasn't the SW for me to try to "roll my own" RPM with, since the Source code wasn't available to me, etc. Thanks to everyone who replied, I have a lot more understanding about how the SW for your UPS is configured (and why) and a little understanding of what packaging SW involves. Much appreciated!

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OpenSSL > 0.9.8b
by Richard Berndt 03 Mar '09

03 Mar '09

Does anyone know if a new vesion of openssl will be available any time soon? RHEL has had 0.9.8e out since Jan 2009. Anyone?

2 1

openldap 2.4.11 ......unable to start on reboot
by Agnello George 03 Mar '09

03 Mar '09

Hi I had upgraed my opneldap rpm frm 2.3.27 to 2.4.11 with ehelp of the followng link http://staff.osuosl.org/~jeff/openldap/ I had then rebooted my machine and now whne i am starting ldap [root@system-test40 ldap]# /etc/init.d/ldap start Checking configuration files for slapd: bdb_db_open: database "o=netserv_ldap": unclean shutdown detected; attempting recovery. bdb_db_open: database "o=netserv_ldap": recovery skipped in read-only mode. Run manual recovery if errors are encountered. ch_calloc of 1 elems of 480000004 bytes failed slaptest: ../../../servers/slapd/ch_malloc.c:107: ch_calloc: Assertion `0' failed. i tried to do some recovery as mentioned in vairous archives : cd /var/lib/ldap slapd_db_recover -v but it still not able to restart it give me the same error [root@system-test40 ldap]# /etc/init.d/ldap restart Stopping slapd: [FAILED] Checking configuration files for slapd: bdb_db_open: database "o=netserv_ldap": unclean shutdown detected; attempting recovery. bdb_db_open: database "o=netserv_ldap": recovery skipped in read-only mode. Run manual recovery if errors are encountered. ch_calloc of 1 elems of 480000004 bytes failed slaptest: ../../../servers/slapd/ch_malloc.c:107: ch_calloc: Assertion `0' failed. [ OK ] Starting slapd: [ OK ] [root@system-test40 ldap]# /etc/init.d/ldap status slapd is stopped has any one encounterd the same issue ......... thanks for all the help !! -- Regards Agnello D'souza

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Additional CDs Installation in kick start
by Balaji 03 Mar '09

03 Mar '09

Dear All, Currently i have using CentOS release 4.4 (Final) Linux. I am new in CentOS Kick Start Installation and I have prepared my own kick start file as per my knowledge. For your verification or analysis i have attached my kick start file Can any one help me how do i install my Application CDs from kick start installation or how can i add my Application CDs as Additional CDs Installation Option available in CentOS. Regards -S.Balaji lang en_US langsupport en_US keyboard us mouse none timezone --utc Asia/Calcutta rootpw midasrd text zerombr yes bootloader --location=mbr install cdrom clearpart --all part /boot --fstype ext3 --size=100 part pv.00 --size=100 --grow volgroup vgroot pv.00 logvol / --fstype ext3 --name=LogVol02 --vgname=vgroot --size=4000 logvol /usr --fstype ext3 --name=LogVol03 --vgname=vgroot --size=9000 logvol swap --fstype swap --name=LogVol04 --vgname=vgroot --size=1024 logvol /backup --fstype ext3 --name=LogVol00 --vgname=vgroot --size=14000 logvol /home --fstype ext3 --name=LogVol01 --vgname=vgroot --size=5000 --grow network --bootproto static --ip 192.168.50.1 --netmask 255.255.255.0 --gateway 192.168.5.5 --nameserver 127.0.0.1 auth --useshadow --enablemd5 firewall --medium --trust eth0 --ftp --telnet --ssh --smtp --dhcp --http selinux --disabled %packages @Everything

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Hardware compatibility IM-945GC Intel Atom Mini-ITX
by Jason Pyeron 03 Mar '09

03 Mar '09

Can this MB be used with Centos 4 (or 5)? For reference: http://www.logicsupply.com/products/ms_9832 I don't think we can use this new MB since the Realtek 8111C does not seem to be supported (well) http://forums.tweaktown.com/f69/8111c-nic-revision-ep45-27089/ -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

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