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Looking for a good disk exerciser
by Mark Hull-Richter 14 Apr '07

14 Apr '07

I recently added a Seagate 400Gb SATA drive to my system, and it has been behaving strangely since I put it in. for one thing, the BIOS S.M.A.R.T. came up with a warning the last time I booted with it enabled, saying that I should backup my data and replace the disk (!). I still have not made any irreversible data transfers to this drive, and I have some time yet to take it back, but I'd like to know for sure that it needs it, or at least have some reasonable evidence of failure. What is a good program out there that exercises a disk to give some assurance of errors or lack thereof? Thanks. Mark Hull-Richter, Linux Kernel Engineer DATAllegro (www.datallegro.com) 85 Enterprise, Second Floor, Aliso Viejo, CA 92656 949-680-3082 - Office 949-330-7691 - fax

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CentOS 5 dual boot with XP success
by Brian Barnes 14 Apr '07

14 Apr '07

Hello. A happy, error-free report about my experiences last night. Only one small inconvenience in the install. I have an AMD Athlon64 3700+ in a MSI Neo2-F motherboard (Via K8T800 Pro chipset), with a WD Raptor SATA drive and an older WD 80gig IDE drive. The system has 1 gig of RAM and a CDROM (not DVD). The on-board network is a Realtek 8169/8110 chip. My video is a 6800GT (AGP). The BIOS instructs the machine to boot off the SATA drive first, which is partitioned completely to a recent install of Win XP SP2. Using CentOS 5 CDs, I booted and began the installation on my IDE drive. I told Grub to install itself on the SATA drive's MBR (this required going to the advanced options menu), and I partitioned my IDE drive entirely to / , except for 1 gig to swap and 10 gig to vfat (for a simple, common writeable partition between XP and Linux). I installed CentOS 5 without glitches, rebooted, and Grub came up as it should. I proceeded to boot to CentOS. My one problem: no network. The Realtek chip was not detected. I rebooted to XP, did some googling, and figured out that I needed to download the appropriate Realtek drivers, build and install them. I put the drivers on my vfat partition (grabbing the NVidia video drivers too), rebooted to CentOS, built/installed the drivers, and then had to reboot one more time before network would work. All finished! The slowest part of the process was customizing which packages to install and sitting around waiting to swap discs. My old Lite-On CD burner has been moved forward through a few system builds now... it keeps chugging. Brian Barnes Washington University in St. Louis

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Install of CentOS fails on systems less 256MB RAM
by Frank Büttner 14 Apr '07

14 Apr '07

When try to install CentOS 5 via ftp on an system with less then 256MB RAM it fails. After select the ftp server witch contains the data, some files are loaded, then the dialog witch prompt for the ftp sever is shown again.

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Need a driver for a Canon MP160 printer
by Mark Hull-Richter 14 Apr '07

14 Apr '07

As usual, virtually every printer on the market comes with Windows, and sometimes Mac OS, drivers for the printers, but they almost never come with Unix/Linux drivers. This time Google was not my friend. I got a pointer to a drivr, dommon<something>mp160.ppd that doesn't appear to exist anywhere on the web, and there are two driver files from Canon Asia that want a lot of i386 libraries, including a newer glibc than I am NOT prepared to inflict on my x86_64 machine until CentOS 5 (once I get that bloody disk drive replaced with a good one). Any suggestions? Is there anything like the Windows UPD available on Linux/Unix/CentOS? That would be a coup for whoever did it.... Thanks. Mark Hull-Richter, Linux Kernel Engineer DATAllegro (www.datallegro.com) 85 Enterprise, Second Floor, Aliso Viejo, CA 92656 949-680-3082 - Office 949-330-7691 - fax

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OT: AMD CPU actual speed....
by Mark Hull-Richter 14 Apr '07

14 Apr '07

I know this is a bit OT, but the subject of CPU speed came up here and I was (and have been for some time) curious: What is the actual speed of an AMD CPU? E.g., I have a Athlon 64 X2 "4200+" but my /proc/cpuinfo shows 1005.164 MHz for the two cores. What do those mean? Is there a reference for this (huge) discrepancy? Also, is there a way (and what) to tell what the actuall running speed of memory is? Thanks. Mark Hull-Richter, Linux Kernel Engineer DATAllegro (www.datallegro.com) 85 Enterprise, Second Floor, Aliso Viejo, CA 92656 949-680-3082 - Office 949-330-7691 - fax

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Sendmail Generics Configuration LDAP
by Joshua Gimer 14 Apr '07

14 Apr '07

I am trying to configure Sendmail to do Generics lookups using LDAP. I added FEATURE(`genericstable', `LDAP') to my sendmail.mc file, and was planning on using an existing LDAP directory that should contain the information needed (currently doing aliasing). I do not know where to specify the non-standard attributes that we are using, and would prefer to not change my sendmail.cfdirectly (makes it very impractical when changing things later). I had this working using a file, but am unsuccessful when doing this through LDAP. Does anyone have a working generics through LDAP configuration? I see the information that was added to my sendmail.cf when using the above directive in my sendmail.mc (Kgenerics -v .... -k .... ), any help would be great. I have searched google, and my O'Reilly book without success. -- Thx Joshua Gimer

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laptop install centos 5
by Jerry Geis 14 Apr '07

14 Apr '07

Hi all, I was just installing centos 5 on my new dv9000 hp laptop. Installed fine. on first boot, I got through welcome, firewall, selinux was on date time screen and did Forward to goto next screen (Create User) and the machines locks up. can ping any more or anything.... Any ideas? Jerry

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Strange Question regarding CentOS 5 install
by Lonny Selinger 14 Apr '07

14 Apr '07

Ok so the install has been seamless on a few machines and I decided to try it on my laptop (a Dell D620). I had everything working great and kicked it around a bit and then figured, if I'm going to keep this on my laptop I'll need to reformat everything, enable some encrypted filesystems etc ... not a big deal ... kind of Here's the problem, the laptop has a resolution of 1440x900 and X wont start up on it therefore, I do not get the graphical installer ... not a big deal if you don't want to customize your volume groups and logical volumes, but I would like to. So far I've tested graphical installers from Mandriva and Knoppix and they will actually load a graphical installer but CentOS 5 does not. Does anyone know if there is a way for me to get the GUI installer so I can monkey with VG's? currently these options aren't available in the curses menu set up. And yes I know I could just as easily create regular etx3 filesystems with no LVM2 stuff (no I'm not going to be adding more drives any time soon to my laptop) but it would be nice to know it's possible. I was using LVM2 on my last laptop and it was handy having the ability to grow and shrink some filesystems. I know it's probably not on the agenda from the upstream provider either but automating the encryption of newley created filesystems at the point of install would be sweet too :D -- Lonny -- "To mess up a Linux box, you need to work at it; to mess up your Windows box, you just need to work ON it."

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Moving/copying the MBR
by Mark Hull-Richter 14 Apr '07

14 Apr '07

Are there any tools for working with and moving or copying the MBR? My machine has 2 PATA drives (hda & hdb) and 2 SATA drives (sda & sdb). The MBR is on hda, but I would like (eventually or sooner) to boot from sda because it is two years newer, faster and, hopefully, more reliable. Even if I don't change that, I'd like a backup MBR on sda in case hda fails (hdb has gone sour a few times due to something in the power setup, although no data lost and it always comes back). In order to copy the MBR, I'd also need to edit it because the drive configuration would be different, as well as the location of my /boot partition. Any suggestions? Thanks. Mark Hull-Richter, Linux Kernel Engineer DATAllegro (www.datallegro.com) 85 Enterprise, Second Floor, Aliso Viejo, CA 92656 949-680-3082 - Office 949-330-7691 - fax

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Re: [Fwd: [CentOS] 4.92 beta update to centos5 proper words of caution]
by Peter Gross 14 Apr '07

14 Apr '07

Jim Perrin wrote: > For those of you who are going to do the update from the centos5 beta > to centos 5 proper despite the warnings, this is a(n incomplete) list > of instructions for how to accomplish this > > 1. Get yourself into runlevel 3 (telinit 3 from terminal) as the dbus > update will die if you're in X. > 2. Setenforce 0 # turn off selinux as there have been some unconfirmed > reports that it will interfere with the updates. > 3. yum update > 4. rpm -qa release="*fc6*" # this will let you find and identify the > packages which had the release string changed from fc6 to el5. > 5. manually update these rpms to the corresponding proper versions for > centos5 proper. I'm not sure how many of these there actually are, so > follow-ups to this post are welcomed. > > If these instructions need to be modified, or are incorrect, please > reply with corrections and/or additions. > I have Beta 5 running and tried to follow the steps you outlined. I slightly modified your step 3 to 3a and 3b, where 3a would be: # yum check-update Here's what I got: > Loading "installonlyn" plugin > Setting up repositories > http://centosg.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centosj.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centosh.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centosn.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centosk.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centosr.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 12] Timeout: <urlopen error timed out> > Trying other mirror. > http://centosi.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centose.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centoso.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > http://centosf.centos.org/centos/4.92/updates/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found > Trying other mirror. > Error: Cannot open/read repomd.xml file for repository: update Any suggestions? Thanks.

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