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Re: [CentOS] Install and Run mysql 4.x
by Al Sparks 22 Mar '07

22 Mar '07

> You don't have to initialize mysql db : it will be done > automagically when you'll start the mysqld service for the first > time (service mysqld start) ... > Have a look in the mysqld init script (that rpm/yum provides you > so gently) , especially in the start() function ... Well, I guess that's a DOH on my part. Of course they'd provide and use the init scripts in /etc/init.d. This may have something to do with all the previous things I've attempted after the install, but when I actually invoke the script it says the startup fails. However, the mysql.log shows that the database successfully starts, and I'm able to get a mysql prompt. Thanks for your help. === Al

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Hellllp Pl: Centos 4.4 Default LVM install boot/recovery problem
by Sanjay Arora 21 Mar '07

21 Mar '07

Hello all Nill experience with LVM. Have a Default Centos 4.4 install updated till a week ago with three HDDs. System's not booting up since my staff pulled out the plug due to a short circuit nearby. Machine is a PIII 550 MHz, with 3 HDDs 40 GB, 120 GB (Actually is bigger but my bios detects only upto 120 GB) & 20 GB...about half filled with data & the backup server taken out in the short circuit. Upon bootup, the system starts with root, kernel & initrd notices, then says Uncompressing Linux then spits out the Error....CRC Error -- System Halted. Booted from the CD in reinstall mode where anaconda looks for linux installations on the HDD and asks about upgrade, reinstall or fresh partition/create partition/delete partition for reinstall, but the installer does not detect any linux installation on the HDD. I aborted at that stage. Now my system is a default linux installation where I have used the autopartitioning done by the system (LVM2) and almost all of my data is either in /home directory or couple of directories in the / I am willing to do a reinstall if my data is preserved. What do I need to do to diagnose the problem? and pointers to recovering from this problem and various tradeoffs. Can't lose data, as already have lost backup server (smps, motherboard, hdd circuitry all short-circuited, so no hope there). LVM howto was not much of a help as it seems to mostly have how to expand or reduce lvm and similar issues. Please keep in mind that I am a user and not sys-admin, though I can use command-line, if instructions & how-tos are there. Please help. With best regards and thanks in anticipation. Sanjay.

3 4

Install and Run mysql 4.x
by Al Sparks 21 Mar '07

21 Mar '07

You know, I suppose I could simply install the tarball, I've successfully installed mysql in the past that way. However, I thought I'd use yum, install the redhat/CentOS way, and I am amazed how hard it is to get this thing working. I admit to not having become all that familiar with mysql. Anyway, when I run # mysql_install_db --user=mysql I get a bunch of errors: 070321 11:50:43 [ERROR] /usr/libexec/mysqld: Can't find file: './mysql/help_topic.frm' (errno: 13) So I find out where the file is, and cd /var/lib/mysql and to confirm I do a ls ./mysql/help_relation.frm I run # mysql_install_db --user=mysql Same error. I'll be glad for some help, but a secondary point I'd like to make is, what's the point in having packages if a lot of this stuff isn't already taken care of? Obviously the yum package manager puts the mysql distro in different places than the mysql tarball does by default. But shouldn't the package's config files take all that into account? Why is this so hard? === Al

3 2

Linux at command
by Frank M. Ramaekers 21 Mar '07

21 Mar '07

I'm having a problem with the Linux (unix) at command. I have a program/script that needs to run another program/script within seconds. Unfortunately the at command only accepts minutes as input. Therefore, scheduling a command within a minute (i.e. adding 1 minute to the current time), can cause the command to run within 1 to 60 seconds. (Add 1 minute to a time such as 11:43:59 will cause it to run at 11:44:00, one second later.) I don't quite understand why unix has this limitation. Is there something else I should be considering? TIA, Frank M. Ramaekers Jr. Systems Programmer; MCP, MCP+I, MCSE & RHCE American Income Life Insurance Company Phone: (254) 761-6649 Fax: (254) 741-5777

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interactive %pre in kickstart?
by Florin Andrei 21 Mar '07

21 Mar '07

Here's what I'm currently doing in ks.cfg: %pre #!/bin/sh echo -n "Please enter blah: " read blah echo $blah > /tmp/ks-blah I know that "read blah" works fine, because after that I see the variable in the /tmp file. The problem is, echo doesn't seem to work at this stage. This pretty much kills the idea of an interactive %pre script. I was thinking to collect in %pre the information that is different from one system to another (and cannot be deduced automatically by kickstart), then the user can walk away and the system is installed and configured completely by kickstart. If %pre cannot be made interactive, then I'll have to move the customization after reboot, which is less than ideal. P.S.: I guess I could automatically generate a whole lot of ks.cfg files on the kickstart server, and just tell the user to point the installer to the appropriate ks.cfg, instead of entering some info manually at the %pre stage. But somehow generating hundreds of ks.cfg files seems very ugly. I'd rather keep that algorithm in one single ks.cfg and let the user enter a couple things in the %pre stage. -- Florin Andrei http://florin.myip.org/

5 9

samba-devel
by David Hrbáč 21 Mar '07

21 Mar '07

Hi, Where can I find samba-devel package? I'm trying to release samba-pdbsql. Thanks, David Hrbáč

2 1

Full NTFS support
by Feizhou 21 Mar '07

21 Mar '07

http://www.ntfs-3g.org/ Anybody interested? Someone built a package for RHEL4...

3 2

CentOS 5 (beta): tomcat/keystore issue
by Paul Heinlein 21 Mar '07

21 Mar '07

I (somewhat sadly, imo) need to run Tomcat/SSL on a public-facing machine at work. I was really, really hoping I could use the GCJ-compiled version of Tomcat supplied in the base repository. I can't get Tomcat to read a Java keystore created with the keytool utility provided (in java-1.4.2-gcj-compat-1.4.2.0-40jpp.110). The Sun and GNU keytools produce different keystores. I'll use the Tomcat nomenclature to describe the differences. Obviously, I'm looking for the correct "algorithm" (i.e., certificate signing algorithm) setting: Toolset keystoreType algorithm ------- ------------ --------- Sun JKS SunX509 GNU GKR ??? The Tomcat that ships with CentOS 4.92 defaults to assuming keystoreType="JKS" and algorithm="SunX509" so that in /etc/tomcat5/server.xml the Connector tag will assume those values, e.g., <Connector port="8443" maxHttpHeaderSize="8192" [....] scheme="https" secure="true" sslProtocol="TLS" keystoreType="JKS" algorithm="SunX509" /> With those settings -- either implicitly (since they're the default) or explicitly -- Tomcat fails to start an SSL listener. The catalina.out log reports: SEVERE: Exception trying to load keystore /path/to/keystore java.security.KeyStoreException: JKS If I set keystoreType="gkr", the error changes: SEVERE: Error initializing endpoint java.io.IOException: SunX509 I've taken some wild stabs at guessing the algorithm string ("X.509", "X509", "GnuX509", "GNU-CRYPTOX509", and some others), to no avail. My keystore seems to be valid, since "keytool -list" run against it produces the expected output. My google-foo has failed me completely. Help, anyone? -- Paul Heinlein <> heinlein(a)madboa.com <> www.madboa.com

1 0

A few issues
by Mark Hull-Richter 21 Mar '07

21 Mar '07

1) Is this the right place for kernel internals questions and if not, what is? (Refresher: I am relatively new to Linux kernel internals, but not kernels in general. I've work on Unix and proprietary kernels, including my first seven years as a professional developing a whole system from the ground up.) 2) I noticed this morning that my GLMatrix screensaver is not working any more. I poked around and found a whole bunch of others that stopped working, including all the GLxxx screensavers. Any particular reason for this? The matrix one worked a couple of days ago even when I had to futz with the screen resolution and monitor resolution settings. 3) Now that I mention it, I'm still having trouble running the display configuration settings applet (it comes and asks for the root password, then disappears). What's up with that? This happens here at work and also at home.... 4) With but one partition left to convert from NTFS to ext3, this one had to be the difficult one. It's my old C: partition from which I used to boot Windows. Three times now, with cp and tar, it has hung somewhere in the Documents and Settings directory and nothing brings it back. I managed to hang my whole system with a bad shell function, but the reboot brought everything back. I've gone to a directory-by-directory backup, excluding the D&S until tonight, but I was wondering if anyone knows why that one would be so difficult. I have no lack of disk space, so that's definitely not the problem. It stopped on one of the music player settings databases, slowing down at each one progressively until it hit the one that hung it, and these were hung for hours, so I'm pretty sure it wasn't just me being impatient. Probably OT.... Thanks. Mark Hull-Richter Linux Kernel Engineer (949) 680-3082 - Office (949) 680-3001 - Fax (949) 632-8403 - Mobile mhull-richter(a)datallegro.com <mailto:mhull-richter@datallegro.com> www.datallegro.com <http://www.datallegro.com> <http://www.datallegro.com/index.htm>

4 5

Building i386 packages on a x86_64 system
by Bernhard Gschaider 21 Mar '07

21 Mar '07

Hi! Is there an easy way to do that? I looked around and the way that is usually advertised is setarch i386 rpmbuild --target=i386 --rebuild .... but for the SRPMs I've tried it always fails at tests in the Spec-File (like %ifnarch x86_64) The RPM I try to build doesn't compile anything (it just wraps a TAR-File), so setting up mock isn't necessary in my opinion. Is there any way to use the --target-switch? Thanks

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