Server :: RHEL5 Won't Boot From LUN ID 1 - Where To Change It
May 8, 2010
I'm trying to get RHEL5.3 booting on an IBM Blade off a SAN disk, but it refuses.Our storage is presented on LUN 1 as due to the IBM XIV SAN, we cannot use LUN 0 when presenting volumes. We believe that when the installer tries to configure the boot LUN, it expects to see it on LUN 0 but we can't use that. This leads to a problem where after installed Red Hat, it asks me to remove the CD and reboot, but doesn't load anything other than a cursor blinking at me on the monitor.I currently can't change the LUN ID on the SAN, so I've been trying to amend things to get it to work with no joy.
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May 26, 2010
The default value of Hugepagesize is 2m, I want to chang it to 16m, could anybody tell me how to do that?
$ grep Huge /proc/meminfo
HugePages_Total: 10240
HugePages_Free: 799
[code]...
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Sep 15, 2010
I want to build a PXE boot server on rhel5/centos5 from which all type of OS(Linux distros,Windows - xp,vista,7) these can be installed on any client on my LAN . I have tried it for some linux distros with TFTP ,but unable to add windows.
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Jan 21, 2010
I am having a problem making an iso image using mkisofs. I currently have all the files I want to make a RHEL5.2 iso image from in /tmp/RHEL5.2-server-x86_64. There are the typical directories needed for a RHEL distro in here.
Cluster ClusterStorage images isolinux Server VT. In the isolinux directory I have the following files:
[code]...
I was able to build an image earlier off of this, only to find that I didnt create a bootable iso :-( and have to start the process over again. I am trying to make a bootable iso of RHEL5.2, and here is the command I am passing, but it is throwing an error:
[code]...
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Nov 27, 2010
I have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.
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then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.
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May 16, 2011
I have a system with RHEL 5 installed on it. I installed Edubuntu 10.04 LTSP side-by-side without installing the boot-loader. Now I can detect Edubuntu thro RHEL, but have to make an entry for Edubuntu in the grub menu through RHEL. I need to know how I can find the kernel version number etc.
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Sep 22, 2010
I want to know from where i can got the boot.iso for network installation.Can i got this from rhel5 server installation dvd.
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Dec 23, 2010
I have 4 VMs on a Linux host, call them A, B, C, D running on Z. I really don't care when A and B come up, but I would like to make sure that D comes up before C.I believe that in VMWare 2.x it's possible to change the boot order. Is this possible in 1.x as well? Is this done in /etc/vmware/vm-list? I see that there are a number of VMs listed there, including some that have long since been deleted.
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Feb 7, 2010
VMware Fusion
RHEL5 Server
After messing about with a vm I need to go into rescue mode and fix the problem I have tried all settings in the CD/DVD window and cannot get a boot prompt Just goes straight to grub I only used the rescue mode on a 'real' host before and had no problem.
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Aug 30, 2010
I'm developing simple transaction switch using java socket programming and running operating system RHEL5.4 . Now it is completely done and working fine. So I have written the simple shell script to run it on background.
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Sep 2, 2010
how can we achive more than 8TB size for one LUN.?I am getting following error..
[root@storage ~]# mke2fs -j /dev/VG01/data
mke2fs 1.39 (29-May-2006)
mke2fs: Filesystem too large. No more than 2**31-1 blocks
(8TB using a blocksize of 4k) are currently supported.
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Sep 25, 2010
I want to implement CBQ in my RHEL5 server so that i can manage my BW.
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May 21, 2010
I am trying to configure a system to boot Windows XP, CentOS 4 and RHEL5. I have one hard drive that contains both Windows XP and CentOS 4, and a separate drive that contains RHEL5. Until recently, I only had one SATA cable, so I could only connect one drive at a time. Under this configuration, everything works fine. When the RHEL5 drive is connected, I can boot into it. When the Windows/CentOS drive is connected, I can dual-boot into either OS. (GRUB was configured on this drive automatically when I installed CentOS into a new partition.)
Opening the box and moving the SATA cable is a lot of trouble, so I finally got a second SATA cable and enabled both SATA0 and SATA1 in the BIOS. I currently have the Windows/Centos drive as the primary, and I can still boot into both Windows/Centos. Now, I want to add RHEL5 to menu, but I can't find the file GRUB is using to present its menu at startup.
I have configured GRUB before on other systems, but I just know the very basics, such as where the grub.conf file should be. So, I spent a whole day reading advice online and asking friends who might have experience with these issues. Here are the steps I have taken so far:
I confirmed there is no /boot/grub directory, and /etc/grub.conf is a broken soft-link to /boot/grub/grub.conf. I did a find for grub.conf, which found nothing. I did a find for menu.lst, which found one item -- an example GRUB config file in /usr/share/doc/grub-0.95. I noticed that when CentOS boots, I see the GRUB commands printed to the screen, the first of which is:
root (hd0,2)
So, I did a grep -R "(hd0" * at the / directory, which also found only one item -- the example menu.lst file in /usr/share/doc/grub-0.95. I discovered that I can go to the command line grub from the grub menu and do:
cat (hd0,2)/grub/grub.conf
The cat command returns a printout of the grub configuration the system is obviously using. I didn't create this file, but the titles are identical to what I see in the GRUB menu, the default boot is Windows, and the timeout is very short. This must be the file. It looks like:
default=2
timeout=5
splashimage=(hd0,2)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.9-89.ELsmp)
[Code].....
I've also tried making the RHEL5 drive the primary drive. In that case, I can modify the existing /boot/grub/grub.conf file and see my changes at the GRUB boot menu. However, I can't get Windows to boot in this configuration. I've done a lot of google searching on the topic and added map commands to make Windows think it is on the primary drive. But, I'm still unsuccessful on this front as well. I think I'm closer to solving the problem with Windows/CentOS as the primary. However, if you think I will have more success with RHEL5 as the primary drive, I can provide more details as to my current grub.conf on that drive in a later post.
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May 21, 2010
I have rhel5 running ok and windows7 running ok, and currently access both via grub (both os are on separate disks) I want to be able to switch between both without rebooting. xen is installed and working but I cannot configure windows to run as a guest as xen wants an iso or img file.
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Dec 24, 2008
i wnt to know how to configure nat server in rhel 5 i have net on eth0 so hw can i share net on my lan through nat server
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Aug 15, 2010
I am configuring apche on rhel5, I got default page successfully, and virtual page too, when I keep only one file index.html in virtual folder it goes well, that file opens correctly, but when I keep other html files except index.html server shows default page again.
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Dec 8, 2010
how to configure vsftp in my rhel5 server.
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Jul 5, 2011
I installed RHEL 5.5 with Postfix & openldap. POSTFIX version-2.3.3 openldap-server-2.3.43-12.el5 How to combine ldap with postfix for authentication? How to compile postfix with LDAP and where is the source
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May 8, 2009
I wonder if someone can shade alight on this problem,I have active subscription for rhel4 ES and trying to do a fresh install of rhel5,I was able to download rhel5.3 DVD image from redhat site,burnt it to a DVD but is not booting,i have so far tried on 2 different DVDs but both have failed. I have even downloaded and burnt 1 CD ISO image burnt it still failed.BIOS level is set to cd device first so no problem there,it works!
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Feb 3, 2011
what is the process of updating rhel5.1 to rhel6
is there anything which need to done before creating yum repositry and simplly running yum update ?
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Oct 11, 2010
I am trying to install RHEL5.5 server on Dell Optiplex 360. When its reached at "checking dependencies in packages selected for Installation" its hang. What should I do, I checked cables hardware etc... every thing looks ok.
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May 26, 2011
I made my HP DV6000 into a single boot system. Red Hat Enterprise Linux 5, 64bit. I have been trying every cure I can find on the internet. I can seem to find the problem. My monitor show's everything on the screen as it's booting but then, when it's done, it goes blank and no keys/buttons work. I have it on the GNU GRUB screen right now. (The monitor is working fine (on this screen)
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Sep 14, 2010
The DNS server configuration for CentOS and RHEL5 and the entries for the clients in its configuration files...
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Apr 11, 2011
I am studying RHEL myself, not clear with following topics How to configure DNS slave server in RHEL 5 Whether named.rfc1912.zones file entry can be included in named.conf itslef,if not What is following entry means inside named.conf file
zone "." in{
type hint;
file "root.servers";
[code]...
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Jan 12, 2010
I want to configure a PXE Install Server with RHEL5u3 64bit.
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Mar 26, 2010
How to check server usage (process and memory) for last 4months in RHEL5
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Mar 6, 2010
My RHEL5 server is sync with NTP server. But we dont want to follow Day light saving. Is there any option to disable it. Like in windows you can uncheck the option if you dont want to follow day light saving.?
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Aug 12, 2010
I am a new, working on RHEL5. I am a bit confused on file permissions. I want to know how the setuid, setgid and sticky bit works on linux. And what are the advantages of using these bits? Can anyone explain me the main concepts of using these permissions?
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May 6, 2010
I have a RHEL 5 system running vsftpd. If I do a put to the box, files larger than 1 GB fail around the 1 GB point. Smaller files don't have a problem. If I do a get from the box there is no problem. Both the FTP server and client are plugged into a Netgear switch. I'm trying to create an FTP server and web server so my friends and I can upload our vacation pictures. Ultimately I want my friends to be able to access my server. Right now I'm just trying to make it work between my two machines.
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Nov 25, 2009
I have configured web server now i want add additional web domain to my web server how can i add it.
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