Discuss June 2006

discuss@lists.centos.org

217 participants
235 discussions

Remaster CentOs Live CD
by Antonio Ortega Brook 05 Jul '06

05 Jul '06

Hi! I have not any experience working in Red Hat based distros and I have to remaster a Centos Live CD, Does anybody know how can I do that? Thanks...

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Selectively updating protected repos
by Bart Schaefer 05 Jul '06

05 Jul '06

I've been trying out the protectbase plugin for yum, and haven't yet determined the best way to selectively update a package. E.g. I'd like to mark the base repo as protected, but get the latest firefox from the centosplus repo. What's the correct incantation for this?

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Terms..?
by Ben Gore 05 Jul '06

05 Jul '06

I read this list often, and although I'm not smart enough to contribute, I learn a lot every day. But I read a post from this morning that contained this: >a fair amount of jiggery-pokery Just wondering...is this a technical term? Where is it documented? I won't offer any insight into what vision it gave me. ;-) Thanks for all the work on the distribution and all the invaluable info posted here. -Ben

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[CentOS] Mysql login-problem after recent 4.1.20 upgrade (CentOS4.3, x86_64)
by Simen Thoresen 03 Jul '06

03 Jul '06

Hi all, I've upgraded my mysql-installation from the previous 4.1.12 version to the new 4.1.20 version, and I've found that a daemon I'm using suddenly can't log into the database anymore. I've verified the problem with the mysql command; [root@sciream ~]# mysql -upostfix -p mysql Enter password: ERROR 1045 (28000): Access denied for user 'postfix'@'localhost' (using password: YES) [root@sciream ~]# I've changed the users password in the mysql database to make sure the encrypted version is compatible with the current server, but to no avail Rolling back to the 4.1.12 version fixed it for me (if not, I'd still be sweating about this ;-), but I hope this mail comes in time to assist others. # rpm -Uvh --oldpackage mysql-4.1.12-3.RHEL4.1.* \ mysql-server-4.1.12-3.RHEL4.1.x86_64.rpm \ mysql-devel-4.1.12-3.RHEL4.1.x86_64.rpm fixed it again. This was with a current CentOS 4.3 install, running in x86_64 mode. Can anyone confirm this? I'll see if I can do this on i386 as well. Yours, -S -- Simen Thoresen, Dolphin ICS

2 2

Installing TOO USB Drive
by Mike 01 Jul '06

01 Jul '06

Greetings CentOS Fans. I'm working on an Inspiron 9400 Laptop. It supports booting from USB devices, so I'd like to install CentOS on a USB hard drive as an alternative to XP. I tried booting to the 4.3 (disk 1) CD, but it doesn't see the USB Drive when it gets to the stage of partitioning... any idea what's involved in getting the USB drive recognized so I can install CentOS onto it? Mike.

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RE: Re: [CentOS] /etc/inittab: Serial access/ Console Server
by pctech＠mybellybutton.com 01 Jul '06

01 Jul '06

>On Thu, 2006-06-29 at 20:48 -0700, Chris Fox wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Rodrigo Barbosa wrote: >> >> > you might want to try agetty: >> > >> > T0:23:respawn:/sbin/agetty 9600 ttyS0 vt100 >> > >> > Not sure if it will work, but seems likely. >> > >> I've always wanted to know how this is done (before serial ports go >> away forever). >> > >We (CentOS Project) just got a $29,000 machine w/o a video card. (Sparc >niagara t2000 machine). > >I use a serial connection to what it boot ... > > You don't just need the inittab setting. You also need a GRUB setting and a secureTTY detting. The following is a paste out of my firewall document that I wrote that has been tested and works: 6.15 Configuring Headless Operation By configuring headless operating we will be able to manage the firewall via a cable plugged into the serial port of the firewall. This obviates the need to plug a keyboard and monitor into it to perform changes. Thus the term headless. 6.15.1 Changes to /etc/inittab The /etc/inittab file contains settings that get applied to the Operating Systems at boot time. There are some changes that need to be made to these settings. In order to edit the /etc/inittab file type: vi /etc/inittab Typing this command will open the /etc/inittab file for editing. As stated earlier the 18th line down is the run level line. Add the following line to the file: S0:12345:respawn:/sbin/agetty ttyS0 9600 linux This line sets the Operating System to be able to send boot time information to the serial port in addition to the console. After you have made these changes to the /etc/inittab file press the colon (: ) key and then type wq to quit vi and save the changes. 6.15.2 Changes to /etc/securetty The /etc/securetty sets the controls for which TTY devices that the root account can log on via. In order for us to be able to log onto the serial console as root or to be able to su to root we must add a line to the file. In order to edit the /etc/secuertty file type: vi /etc/securetty Typing this command will open the /etc/secuertty file for editing. Add the following line to the end of the file: ttyS0 This line sets the Operating System to allow root to log on to the serial port in addition to the console. After you have made these changes to the /etc/securetty file press the colon (: ) key and then type wq to quit vi and save the changes. 6.15.3 Changes to the Boot Loader In order for boot-time messages to be sent to the console, including the boot loader information some changes must be made to the configuration file for it. The boot loader that CentOS uses is GRUB. As such, the configuration file is /etc/grub.conf. The first change that we must make is to add some lines after the timeout line in the GRUB configuration file. In order to edit the /etc/grub.conf file type: vi /etc/grub.conf Typing this command will open the /etc/grub.conf file for editing. Add the following two lines after the timeout line in the configuration file: serial --unit=0 --speed=9600 terminal --timeout=2 serial console Another change that we must make in the GRUB configuration file is to tell the kernel to send out all kernel-level messages to the serial port in addition to the console. That is done by adding the following line to the end of the kernel line: console=tty1 console=ttyS0,9600 After you have made these changes to the /etc/grub.conf file press the colon (: ) key and then type wq to quit vi and save the changes. Once you have made these changes reboot the firewall by typing by typing: reboot The firewall will now reboot. _______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos

3 2

DNS Server
by Thomas E Dukes 30 Jun '06

30 Jun '06

Hello, I have recently switched from having a dynamic IP address and using a DNS service like zoneedit and dyndns to having a static IP address. How do I stop having to use these DNS services and use my own? I tried changing the DNS servers at my registrar but it won't accept my server. TIA

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CentOS 4.3 (Final) need IPVS
by SmallFries 30 Jun '06

30 Jun '06

Hello All Currently on a CentOS 4.3 system with the 2.6.14.3 kernel. Is there a recommend way to properly recompile the kernel? I was thinking of dling the source from kernel.org, but I was told that using SRPMs would be better? Any suggestions ? Thank You

2 2

Possible to change mouse sensitivity?
by Linus Hicks 30 Jun '06

30 Jun '06

Ever since I replaced the mouse that came with one of my computers with a Logitech MX1000, I have noticed that I have difficulty with accurately making small movements with the pointer in X because it moves so fast. I have played around with the mouse preferences, and using 'xset m', but neither one gives me what I want. When I do 'xset m 1/4 1' I get about what I consider to be a normal/usable speed for the mouse when I need to do precise pointing. Of course, that setting eliminates the possibility of getting the pointer across the screen with a flick of the wrist. Most of the articles I have found related to this problem have been about having entries in the XFree86 or xorg config file for two different mouse device names that are actually the same device, and I don't. I have also seen references to psmouse_resolution and psmouse_rate but when I give either of these as a parameter to the kernel, it says they are obsolete and ignores them. My understanding is this mouse is not well supported in xorg until 6.8.3, but I'm still wondering if there is some way to get the kernel to slow it down. Does anybody know of a way to do that, so I can get back the mouse acceleration on fast movements? Oh, by the way, I should probably mention this mouse is on a KVM. I don't know if that could be interfering with the detection algorithm. Thanks for your help. Linus

1 0

Help with some screen command
by Erick Perez 30 Jun '06

30 Jun '06

Hi, I want to connect to my server, run screen as root and then let another person log in a root also and let him run screen and attach to mine so he can "see" what im doing on the server. I haven't played with screen a lot but it seems a nice feature to teach him how to configure certain things. Sorry for the newbie question. thanks, -- ------------------------------------------------------------ Erick Perez ------------------------------------------------------------

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Discuss June 2006