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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 29 April 2008, MHR mhullrich at gmail.com wrote: >Tue Apr 29 16:57:24 UTC 2008 >I am unclear on which parts of the above post are yours and which are >from the thread. Sorry! I am making a mess of my posts. >Can you access the contents of the DVD from a command line at all? If >so, have you tried doing the rpm install from the command line? Yes. I installed the kdeedu RPM awhile ago. Using the command line, I can mount and access the DVD, without any problem. >What make and model of DVD drive is it? I think it is a TEAC drive. Doesn't say on the front panel. >What kind of controller is it >connected to? Have you checked all the cables to make sure that they >are properly connected and the drive has its jumpers in the right >place? It's connected to the EIDE controller on the motherboard. I haven't checked the cables or jumpers, because it is otherwise working OK, in Windoze and from the command line. >I have heard that mixing FC and CentOS rpms is not a good idea, >although IIRC FC6 and CentOS 5 are reasonably close. For sure that is true. Upstream does not include the kdeedu RPM in their distribution, so CentOS doesn't have it and that package is something we use here. I think CentOS5 is based on FC6. That's the only RPM I'm using off the FC6 Install DVD and it works fine on CentOS 5. Thank you Mark! Lanny

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 29 April 2008, Alan Bartlett ajb.stxsl at googlemail.com wrote: Tue Apr 29 16:39:45 UTC 2008 <snip> >Having heard my name being mentioned, I'll just say "make the mount point, >then". I.e. mkdir /mnt/media >Have you checked that /dev/hdc is the optical drive? grep ^hdc >/var/log/dmesg [root@dell1602 ~]# grep ^hdc /var/log/dmesg hdc: DV-516D, ATAPI CD/DVD-ROM drive hdc: ATAPI 50X DVD-ROM drive, 256kB Cache, UDMA(100) [root@dell1602 ~]# >Then looked at the symbolic links? ls -l /dev/ | grep hdc [root@dell1602 ~]# ls -l /dev/ | grep hdc lrwxrwxrwx 1 root root 3 Apr 29 12:30 cdrom-hdc -> hdc lrwxrwxrwx 1 root root 3 Apr 29 12:30 dvd -> hdc lrwxrwxrwx 1 root root 3 Apr 29 12:30 dvd-hdc -> hdc brw------- 1 lanny disk 22, 0 Apr 29 12:30 hdc [root@dell1602 ~]# >If the HAL daemon is present and active on the system, inserting a disk into >the drive *should* mount it on an autocreated mount point appropriate for >the type of medium inserted into the drive or the label - if any - that the >disk has been given. I just updated the hal rpm on the box with the problem and I did a restart of the box after that. hald (pid 2069) is running... >I don't know if this will be any use - >http://wiki.centos.org/TipsAndTricks/HAL Alan: I will check that out! Thanks much! Lanny

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Documentation for DNS and BIND
by Niki Kovacs 29 Apr '08

29 Apr '08

Hi, One of the things I have yet to learn is setting up a DNS server with BIND. Can you recommend me some *comprehensive* documentation? I like the sort of documentation that explains things step by step, not too laconically. I don't mind reading hundreds of pages, as long as it's well explained. Consider me a total newbie in that field. Any suggestions? Niki

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Re: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 29 April 2008, William L. Maltby CentOS4Bill at triad.rr.com wrote: > CentOS] DVD reader: Hardware problem or OS glitch? > William L. Maltby CentOS4Bill at triad.rr.com > Tue Apr 29 16:07:57 UTC 2008 <snip> > > I suspect that somewhere in the auto mount process, it has a problem > > with the HW for the DVD reader for my daughter's box and for the DVD > > reader in Mike's HP box. > > > > When a DVD is inserted into the DVD reader, the DVD shows up on the > > GNOME Desktop, but as if the media is empty. > > I don't know if y'all tried this, or if it will help, but in my > grub.conf (menu.lst) I have this on the kernel line. > > hdc=ide-cd > > Maybe it will help you? Bill: I looked at the /etc/grub.conf file on my box and it does not have that included and it works fine here: kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet I also looked at that file on the box with the problem and it doesn't have that included either. I may edit the file and see if including that cures the problem. Currently updating several packages on the box with the problem, including autofs and hal. If that does not help, I just began to think about updating the Kernel, hoping there might be better support for that DVD reader in a newer Kernel. But, I'm not sure if the support for the HW is the problem. I get the Digest version of this ML every morning, but I read your reply on the ML Archives. Thank you! Lanny

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alias for network on centos 4
by Jerry Geis 29 Apr '08

29 Apr '08

I was playing with network alias on centos 4 - i386. When I activated the alias ifconfig showed the correct eth1:0 information However I was not able to ping the address.... Tried service network stop and start still not able to ping the address. After rebooting everything seems to be normal and the alias was available... Only thing in my alias file was: IPADDR=x.y.x.y DEVICE=eth1:0 Is that normal? I would not have thought a reboot would be required for that? Any experiences with alias? After the reboot, I tried the service network stop and start and everything came up just fine after that. Did not have to reboot... Thanks, Jerry

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 28 April 2008, Mike Peterson" <mpeterson AT mail.charlesfurniture.com wrote: >Message: 21 >Date: Mon, 28 Apr 2008 17:27:44 -0500 >Subject: RE: [CentOS] DVD reader: Hardware problem or OS glitch? >To: "'CentOS mailing list'" <centos(a)centos.org> >Message-ID: <00c901c8a97f$144a1800$de00000a@ITAW> >I have yet to get a DVD to read in CentOS 5. >I can install from DVD and then reboot and then the DVD drive is no longer >accessible. > It works with several live CD and DVD images with no problems however. >This is on an HP system. >I think it is an OS problem. > I will test in some other systems and let you know my results. Mike: I found a *very* recent thread in the web forum of centos.org <http://www.centos.org/modules/newbb/viewtopic.php?post_id=47249&topic_id=13…> Alan Bartlett wrote to: mkdir /mnt/cdrom and then mount -r -t iso9660 /dev/cdrom /mnt/cdrom Here's the FC6 Install DVD I want to install an RPM from: [root@dell1602 ~]# dir /mnt/cdrom eula.txt RELEASE-NOTES-en_US.html RPM-GPG-KEY-fedora-rawhide Fedora repodata RPM-GPG-KEY-fedora-test fedora.css RPM-GPG-KEY RPM-GPG-KEY-rawhide GPL RPM-GPG-KEY-beta stylesheet-images images RPM-GPG-KEY-fedora TRANS.TBL isolinux RPM-GPG-KEY-fedora-extras README-Accessibility RPM-GPG-KEY-fedora-legacy [root@dell1602 ~]# The contents of the DVD still do not show up if I open the Icon for it on the GNOME Desktop or if I click on "Computer" and then open that drive. Doing that, the media still appears to be empty. Like you, I am now 99.9% sure that this is not a HW problem. I am very puzzled, why this works, without any problems, on 2 of the 3 boxes I did clean installs on, last Thanksgiving weekend and not on this box. Lanny

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 27 April 2008, "John" <jses27 at gmail.com> wrote: > Message: 19 > Date: Sun, 27 Apr 2008 23:22:19 -0400 > From: "John" <jses27 AT gmail.com> > Subject: RE: [CentOS] DVD reader: Hardware problem or OS glitch? > Message-ID: <001f01c8a8df$137be840$0700a8c0@ethan27> <snip> > Hmm - do you have one of those disks with the micro-brushes that you > use to clean the lens of a DVD drive? It could be nothing worse than > that. I will look for one of those. Might be worth a try. > I don't know what she used it for under XP, but if it was for reading > commercial disks they are undoubtably easier to read than home-burned > ones, and its possible that the linux driver is not as good either. > OTOH, it could be something quite different :-) Mike Peterson has the same problem on an HP box. Mine is a Dell Dimension 4300. I believe the DVD reader was not installed in the factory and that I installed it, later, but, I'm not positive about that. I also believe that the Dell Dimension 4300 had CentOS 5 on it, before I wiped the HD last Thanksgiving, but, I'm not positive about that. Certainly this was working on that box, when it was mine. My daughter rarely puts removable media into that box and the drive has little use, but, that does not mean that it might not be dirty or faulty. However, the drive seems to work properly, at all times, under Windows XP. That these boxes can boot from the same DVD media, and then not be able to mount the media properly, after the installation is complete, is frustrating. > Did you do a mount /dev/hdc /mnt/media? I tried that but I got this error message: mount point /mnt/media does not exist When I look at the /etc/fstab files in the box with the problem and in my box, they look identical or nearly identical. Where is the configuration file for removable media now? I suspect that somewhere in the auto mount process, it has a problem with the HW for the DVD reader for my daughter's box and for the DVD reader in Mike's HP box. When a DVD is inserted into the DVD reader, the DVD shows up on the GNOME Desktop, but as if the media is empty.

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Kickstart syntax for CentOS upgrade
by Alfred von Campe 29 Apr '08

29 Apr '08

I'd like to automate the upgrade from CentOS 4.6 to 5.1 as much as possible. Since upgrades per se are not really recommended, I'm planning to do a kickstart installation. However, I want to leave one of the existing partitions (/scratch) untouched during the installation. Here is my current layout (LogVol00 is swap so not shown in the df output below): # df -hl Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol01 36G 11G 24G 30% / /dev/sda1 99M 17M 78M 18% /boot /dev/mapper/VolGroup00-LogVol02 36G 9.7G 24G 29% /scratch # vgscan Reading all physical volumes. This may take a while... Found volume group "VolGroup00" using metadata type lvm2 # pvscan PV /dev/sda2 VG VolGroup00 lvm2 [74.41 GB / 32.00 MB free] Total: 1 [74.41 GB] / in use: 1 [74.41 GB] / in no VG: 0 [0 ] # lvscan ACTIVE '/dev/VolGroup00/LogVol01' [35.75 GB] inherit ACTIVE '/dev/VolGroup00/LogVol02' [35.72 GB] inherit ACTIVE '/dev/VolGroup00/LogVol00' [2.91 GB] inherit I've tried various alternatives of specifying the disk layout in the kickstart file, and here is my latest attempt: part /boot --fstype ext3 --onpart sda1 part pv.2 --noformat --onpart sda2 volgroup VolGroup00 --noformat --useexisting --pesize=32768 logvol swap --useexisting --fstype swap --name=LogVol00 -- vgname=VolGroup00 logvol / --useexisting --fstype ext3 --name=LogVol01 -- vgname=VolGroup00 But when I try to install CentOS 5.1 via kickstart, anaconda complains that "You have not defined a root partition (/), which is required for installation of CentOS to continue". Has anyone successfully installed CentOS 5.X via kickstart and preserved at least one partition on a logical volume, and if so, could you please share your kickstart file? Thanks, Alfred

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RE: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 29 Apr '08

29 Apr '08

On 28 April 2008, Mike Peterson wrote: > Date: Mon, 28 Apr 2008 17:27:44 -0500 >From: "Mike Peterson" <mpeterson(a)mail.charlesfurniture.com> > Subject: RE: [CentOS] DVD reader: Hardware problem or OS glitch? > Message-ID: <00c901c8a97f$144a1800$de00000a@ITAW> >I have yet to get a DVD to read in CentOS 5. >I can install from DVD and then reboot and then the DVD drive is no longer >accessible. >It works with several live CD and DVD images with no problems however. >This is on an HP system. >I think it is an OS problem. I also suspect it is an OS problem, but, it seems to be very HW dependent. After I read your post, I got the FC6 Install DVD and put it into the DVD reader in my box. Zero problems. The same in my wife's box. But, in my daughter's box, I have the same situation that you described above. I suspect it is something about the DVD reader in that box. However, when it was my box (and newer), it worked OK and I believe it had CentOS 5 on it, before I let my daughter have it. > I will test in some other systems and let you know my results. Thank you! Very glad to know that I am not the only person with this problem! Lanny

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xinetd question
by Jerry Geis 29 Apr '08

29 Apr '08

I am using centos 5.1 x86_64 I am wanting to restart xinetd when I do "service xinetd restart" it says xinetd unrecognized service when I do "/etc/init.d/xinetd restart" I get no such file or directory. How does one restart xinetd? THanks, Jerry

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