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Re: [CentOS] Problems reading a backup data DVD
by Lanny Marcus 21 Aug '07

21 Aug '07

2 1

Need help to track an ip port problem
by Erick Perez 20 Aug '07

20 Aug '07

Hi, My centos 4.4 fully updated is going to be used as a mail server. However I did something or i didn't do something and I need some assistance. You see, If I run sendmail in port 25, i can telnet localhost 25 fine. but if I telnet the machine from another machine, the port is refuse. So i tested by running other programs (one at a time) listening to port 25, I cant connect. So It seems that something is blocking specifically port 25 to receive incoming connections. Can I have some assistance as to where to look for a configuration mistake? Basically something has my port 25 blocked on the same machine. BTW iptables is not running. Cheers, -- ------------------------------------------------------------ Erick Perez Panama Sistemas Integradores de Telefonia IP y Soluciones Para Centros de Datos Panama, Republica de Panama Cel Panama. +(507) 6694-4780 ------------------------------------------------------------

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'service' command not present
by Trey Sizemore 20 Aug '07

20 Aug '07

I just did an install of CentOS 5 on one of my machines. However, when I try to use the 'service' command (such as 'service httpd start') I get an error that the service command is not found. Why would that be? Where does this command come from? I can launch the services just fine using the respective /etc/init.d/ entries. -- Cheers, Trey ---- Dieters live life in the fasting lane. Linux fedora7.thesizemores.us 2.6.22.1-41.fc7 i686 GNU/Linux 16:51:36 up 1 day, 5:56, 2 users, load average: 0.08, 0.02, 0.01

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Re: [CentOS] GNBD and DRBD kernel mods
by Bart 20 Aug '07

20 Aug '07

>http://mirror.centos.org/centos/5/updates/i386/RPMS/ >i can see the kmod-gnbd for 2.6.18-8.1.8 fine there It's not one of both kmod's, it's the combination ;) I can't find a kernel that has both. >Also, i dont seem to recall us ever shipping kmod-gnbd for the >CentOSPlus kernels. Well, that explains. Can you start shipping kmod-gndb in the CentOSPlus kernels? -- We've Got Your Name at http://www.mail.com ! Get a FREE E-mail Account Today - Choose From 100+ Domains

2 1

HELP, I accidentally initialized my /boot partition
by Alfred von Campe 20 Aug '07

20 Aug '07

So I installed a second drive in my system today, and instead of typing "mkfs.ext3 /dev/sda1" I did a "mkfs.ext3 /dev/hda1". Fortunately, that was just my /boot partition. I thought I could just copy the contents from the /boot partition from another system, but that didn't work as expected. The again, I don't have another system that's identical to the mine. What is the best way to re-create the /boot partition for my system? Alfred

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Re: [CentOS] GNBD and DRBD kernel mods
by Bart 20 Aug '07

20 Aug '07

Hmm, I have to disagree: First check the current kernelversion: [root@bartje ~]# uname -a Linux bartje 2.6.18-8.1.8.el5.centos.plus #1 SMP Mon Jul 16 08:49:50 EDT 2007 i686 athlon i386 GNU/Linux Check for kmod-drbd: [root@bartje ~]# modprobe drbd [root@bartje ~]# lsmod | grep drbd drbd 180488 1 Install the gnbd-kernel mod. We do want to keep the current kernel, so we exclude it now: [root@bartje ~]# yum install kmod-gnbd --exclude=kernel Loading "installonlyn" plugin Setting up Install Process Setting up repositories Reading repository metadata in from local files Excluding Packages in global exclude list Finished Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Downloading header for kmod-gnbd to pack into transaction set. kmod-gnbd-0.1.3-4.2.6.18_ 100% |=========================| 4.2 kB 00:00 ---> Package kmod-gnbd.i686 0:0.1.3-4.2.6.18_8.1.6.el5 set to be installed --> Running transaction check --> Processing Dependency: kernel-i686 = 2.6.18-8.1.6.el5 for package: kmod-gnbd --> Finished Dependency Resolution Error: Missing Dependency: kernel-i686 = 2.6.18-8.1.6.el5 is needed by package kmod-gnbd Oops.. Do we have the extra repro? [root@bartje ~]# grep extra /etc/yum.repos.d/CentOS-* /etc/yum.repos.d/CentOS-Base.repo:[extras] /etc/yum.repos.d/CentOS-Base.repo:mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras /etc/yum.repos.d/CentOS-Base.repo:#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/ Jeps, and it's enabled (but that's not shown :P ) But what if we do allow the kernel to be updated/changed? [root@bartje ~]# yum install kmod-gnbd Loading "installonlyn" plugin <SNIP!> Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: kmod-gnbd i686 0.1.3-4.2.6.18_8.1.6.el5 updates 13 k Removing: kernel i686 2.6.18-8.1.8.el5 installed 34 M Installing for dependencies: kernel i686 2.6.18-8.1.6.el5 updates 12 M Removing for dependencies: kmod-gnbd i686 0.1.3-4.2.6.18_8.1.8.el5 installed 25 k Transaction Summary ============================================================================= Install 2 Package(s) Update 0 Package(s) Remove 2 Package(s) Total download size: 12 M Is this ok [y/N]: That will remove kmod-drbd, which I need... Regards, Bart ----- Original Message ----- From: "Johnny Hughes" To: "CentOS mailing list" Subject: Re: [CentOS] GNBD and DRBD kernel mods Date: Sat, 18 Aug 2007 06:46:20 -0500 Bart wrote: > Hi all, > > I am using heartbeat and drbd on CentOS 5 (see > http://www.centos.org/modules/newbb/viewtopic.php?topic_id=7816&forum=41 for > details).. > > DRBD and heartbeat are working, and now I want to put GNBD on top > on this. However, I installed the latest CentOS-plus kernel > (2.6.18-8.1.8.el5.centos.plus) but there doesn't appear to be a > kmod-gndb for this kernel. > > Looks like the latest kmod-gnbd is available for kernel > 2.6.18-8.1.8.el5. But I cannot find a kmod-drbd for this kernel. > Am I missing something or is this worth a entry in the buglist? > > Tnx! > That kmod is in extras repo: http://mirror.centos.org/centos/5/extras/i386/RPMS/ << signature.asc >> _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos -- We've Got Your Name at http://www.mail.com ! Get a FREE E-mail Account Today - Choose From 100+ Domains

2 1

Re: [CentOS] Problems reading a backup data DVD
by Lanny Marcus 20 Aug '07

20 Aug '07

On 19 August 2007, Robert <kerplop(a)sbcglobal.net> wrote: <snip> > I would suspect IDE cable, DVD drive, P/S, motherboard (assuming an > on-board IDE channel) in that order. Don't overlook the drive's power > connector, either. Robert: The DVD drive in my daughters box is a TEAC (which I've been told are problematic!). I will try to get Diagnostics for it, from the TEAC web site. That drive can automount CD's, without problems. I'll also check dmesg as Mark did on his box with the problem. Not trying to hijack Marks' thread. We have same problem. Lanny

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Problems reading a backup data DVD
by Mark Hull-Richter 20 Aug '07

20 Aug '07

I wrote a bunch of files to a backup DVD about two months ago and now neither of my drives will read it. I get mount errors from "not a directory" to something like "unrecognized file system type" and so on, usually after a really long wait and a notice about how the drive is write-protected (duh). Here's what happened most recently: # mount /dev/hdc /mnt mount: block device /dev/hdc is write-protected, mounting read-only mount: wrong fs type, bad option, bad superblock on /dev/hdc, missing codepage or other error In some cases useful info is found in syslog - try dmesg | tail or so # dmesg | tail -40 hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: ide_intr: huh? expected NULL handler on exit hdc: ATAPI reset complete end_request: I/O error, dev hdc, sector 5118720 Buffer I/O error on device hdc, logical block 639840 hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: ide_intr: huh? expected NULL handler on exit hdc: ATAPI reset complete hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hdc: ide_intr: huh? expected NULL handler on exit hdc: ATAPI reset complete end_request: I/O error, dev hdc, sector 64 isofs_fill_super: bread failed, dev=hdc, iso_blknum=16, block=16 Is there any way to read what's on this DVD (so I can back -up the files again, hopefully with better results)? Secondary related question: I noticed that my CentOS boot DVD does not automount when I put it in either drive - why is that? Thanks. mhr

2 2

open port 46929
by Craig White 20 Aug '07

20 Aug '07

results from 'netstat -tlpn' gives me a line... tcp 0 0 0.0.0.0:46929 0.0.0.0:* LISTEN - googling for port 46929 doesn't turn up anything and so I don't have a clue what process this belongs to. Do I have to start capturing activity on this port or is there a better way to find out what this port is about? -- Craig White <craig(a)tobyhouse.com>

3 5

Re: [CentOS] Problems reading a backup data DVD
by Lanny Marcus 20 Aug '07

20 Aug '07

On 19 August 2007, "Mark Hull-Richter" <mhullrich(a)gmail.com> wrote: <snip> > Is there any way to read what's on this DVD (so I can back -up the > files again, hopefully with better results)? > > Secondary related question: I noticed that my CentOS boot DVD does > not automount when I put it in either drive - why is that? Mark: Welcome to the club! Your secondary question is related to my very recent thread: Re: [CentOS] Re: Automount configuration problem Johnny wrote, a few days ago, that gnome-mount handles this. Someone else had pointed out that it is *not* an automount problem. When I verified the gnome-mount package, it apparently is fine. I'm stuck with this problem on my daughters box. I can (usually) mount a DVD on her box manually, as root, but that's not something I am going to teach my 6 year old or my wife to do. I don't want them running as root. I am running the Firewall and SELinux (permissive mode) on my box and on daughters box. Works perfectly on my box. In my daughters box, in the same drive, it will mount a CD OK but not a DVD. If you find a solution for this, please post to the ML, because I'm sure we are not alone. There's probably a configuration file that isn't 100% correct or permissions incorrect, but I don't know which file. Lanny

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