We have upgraded CentOS release 5.6 (Final) with 2.6.18-238.9.1.el5 kernel. After the reboot all configuration files under /etc became READONLY. my file system's still in rw mode.code...
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I am using linux kernel 2.6.10 after some time one of the file system is becoming read only. Here is the kernel dump
Freeing unused kernel memory: 160k init
kjournald starting. Commit interval 5 seconds
EXT3-fs warning (device hda1): ext3_clear_journal_err: Filesystem error recorded from previous mount: IO failure
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On one of my servers I see this when I log in. What does this mean and how can I get it to go away? Everything seems to work fine, but none of my other machines give this error.
View 5 Replies View RelatedMy linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:
# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs
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I download the xxxx.tar.bz2 file
extracted it,
when i run ./configure under the directory i get the following error code...
i even followed the link http://wiki.winehq.org/WineOn64bit
also http://forum.winehq.org/viewtopic.php?p=28622&sid=17383eb0b922b2c230238f9ab50b265a. and several googling.
i think the architect of the OS and the wine is not matching.
So guide me to solve the above problem.
the output i get on "uname -i"
x86_64
Ive installed X Window System and GNOME Desktop Environment on my server. I am running CentOS 5.3 btw. Ive installed and tried running it but i get error no display specified. GRRRR. I cant seem to find the file where i can specify a display. Im trying to setup a gui so i access my server via vnc cause im kinda a linux noob.
View 1 Replies View RelatedI'm trying to install the GD library from the Add/remove software app, but it will not install because it says that it can't resolve a dependency "PHP-common", however, this IS installed, yet it keeps giving me this error. Is there a work around to this or a way to fix the dependencies problem?
View 2 Replies View RelatedI want to migrate my Debian server to CenOS. The Debian server has the following partition layout code...
When I try to map Logical Volume 'home' to '/home' en choose the 'Leave unchanged (preserve data)' option I get the following error:
The current requested size ( 947904.00 MB) is larger than maximum logical volume size ( 262144.00 MB).
To increase this limit you can create more Physical Volumes from unpartitioned disk space and add them to this Volume Group.
There is something wrong with the Xwindows start of my centos5.4 ( 2.6.18-164.el5 X86_64). After several times to try to start the Xwindows, there is a warning message as following:
gdm[5917]: The display server has been shut down about 6 times in the last 90 seconds. It is likely that something bad is going on. Waiting for 2 minutes before trying again on display :0.
I recently updated CentOS and PHP from 5.2 to 5.3. I ran into this issue though code...
I attempted to re-install memcached and got memcache.so moved to the appropriate module folder and updated php.ini. I am not sure if the updates removed other dependencies or if this is related to my CentOS update.
I have been using Eclipse(Helios) in centos5. my eclipse is getting core dumped frequently.is there any solution to solve this coredump.
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# vi /etc/security/limits.conf
Make sure the following config directive exists:[code]..........
I have three CentOS machines which want updating from CentOS 5.2 to 5.3 sometime in the next week or two.I've always just done su -c 'yum update' on each machine, and let it slowly download and update a zillion pkgs. And every time I do that, I tell myself that *next* time, I'll figure out a better way.
I'd like to be a little more efficient this time, and have the 2nd & 3rd machines re-use some of the packages that the first machine downloaded. Two are workstations, and the third, a headless non-X11 fileserver, so they have different (but overlapping) sets of packages that they'll need. But the in-common packages comprise a lot of downloading that I would rather do only once. There's some way to set up a local yum repo on my server, mirror *everything* onto it, and update all machines from it. But that looks trickier, and way overkill for my purpose. Or I could just download ISOs, and work from there, but two machines don't have optical drives to boot from, and the ISOs contain tons of stuff that none of these systems need, so the download savings would be cancelled out.
A little reading of forums/manpages/etc, and I think I want to make use of yum localupdate (which I've never tried before), and do something along the lines of: 1.) Update the first workstation. It'll download all pkgs it needs overnight, and then update itself: [wkstn]$ su -c 'yum update'
2.) Make sure everything is working correctly.
3.) Grab every *.rpm from wkstn's /var/cache/yum and all its subdirs, and copy these to a temp dir on the server's raid: [wkstn]$ cp -a /var/cache/yum /server/raida/wkstn_yum_cache
4.) Update any server packages that the wkstn already downloaded.[server]$ su -c 'yum localupdate /raida/wkstn_yum_cache/'
5.) Update any server packages that the wkstn did NOT download: [server]$ su -c 'yum update'
6.) Deal with anything that broke on the server. The raid drivers, for example, always seem to need rebuilding, after kernel updates.
7.) Update the other workstation.
Question #0: Will this do what I want? I've never tried yum localupdate before, and the yum manpage doesn't elaborate much. Am I really barking up the wrong tree? Is there some much better way of doing this, for updating just 2 to 4 machines.
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i have Elastix (( Centos )) machine runing and have many configrations i need to take iso iamge from it and use it directly for any othe machine ? How to this step bby step ??
View 1 Replies View RelatedThe install went fine but the only issues is getting the server on the network.
I can't ping any thing other that the ip address assigned to the server.
I did it through the gui , the command line and using ifconfig and editing the ifconfi-eth0 file and nothing works.
any ideas on how to get this to work.
i see nothing wrong in the messages.log file either.
I had a spare computer (Dell Optiplex GX270) which I had installed Centos 5 on and have been setting up asterisk (telephony) on it. My main computer has broken down and I need to load Windows XP back on to the Optiplex.
I put the Windows XP disk in the drive and directed the bios to boot from the cd. I get the message "Please wait while windows inspects your current hardware configuration" and then after about 10 seconds the screen goes blank (the cd also slows down and then stops) and then the systems seems to just hang.
If I take the cd out and boot from the hard drive Centos loads normally; therefore I'm assuming my problem is not a defective hard drive.
I've spent quite a bit of time searching online for a solution and although there seems to be several different situations where the above can occur, I'guessing that my ssues are related to either partions/mbr and or the bios/cmos. I'm really new to Linux and not knowledgable on partitions and cmos so I'm hoping someone could help me out here.
I've checked in the bios and could not find an option to restore the settings to factory defaults. Should I pull the csmos datterry out? Does this restore the bios settings to factory defaults?
I came to a "weird" situation when I saw in yum log files that several centOS systems have been automatically updated via yum. I checked the following:
1. chkconfig for init services that could upgrade the system: only yum-updatesd
2. In the config file of yum-updatesd.conf the do_update function is set to no.
3. If an updated made manually by a user ..no.
Where else should I look or how this update happened?
i am a fresher to linux. presently i am using CentOS for getting some experience in that. but i have a problem with internet connection using in CentOS. i am using prolink USB ADSL2+ modem (H5200U). so, i request from all readers to give alternative answer.
View 2 Replies View RelatedWhen I am in run level 5, I attempt to delete some 'trash' that has accumulated in the 'Trash' icon on my Desktop/.
When I right click the icon and select the 'empty trash' option, I get a permissions error so I just press the 'cancel' option however the contents of the 'Trash' have been purged anyways. It is working basically but I don't understand why I am getting a permissions error.
[cwilliams@tunafish ~]$ id cwilliams
uid=500(cwilliams) gid=500(it) groups=500(it),100(users)
I am newbie to centos. I am trying to install virtual server in my machine. I have installed the Xen virtual machine monitor which comes with CentOS through add/remove software. Here is the problem, I am unable to open connection with Xen hypervisor. Here is the error i am facing:
Unable to open a connection to the Xen hypervisor/daemon. code...
Let me start off with the usual: I'm a linux newbie but am doing pretty good so far with google by my side. I've come across a problem I cant seem to find an answer to:
I just got a CyberPower 685 AVR UPS. I Installed their power panel software and it works great in CentOS 5.4. When I reboot, the system hangs right after the "Red Hat Nash 5.6..... Starting" message. I've left it for 20 mins so far and it's still hanging. If I unplug the USB data/shutdown cable, within about 10 seconds it starts detecting hard drives and continues booting...
Ive even returned the UPS for another to see if it was bad, and it still is giving me problems.
I'm experiencing some rather severe problems after updating my Centos 5.4 system (Virtual Xen guest). What happens is that when the system boots it complains about missing .so files which prevents about 50% of the services installed from running.
I'm suspecting that it has something to do with selinux for two reasons: 1. The first services to go down complains about the security context of some files, and 2. selinux was kinda the reason I decided to update in the first place as it was disabled when it shouldn't be (enabled in system-config-securitylevel, disabled when running sestatus).
The whole boot-sequence ends with alot of "INIT: Id 'X' respawning too fast: disabled for 5 minutes"-messages (including all runlevels) before it goes stale, and I can do nothing.
The server in question had undergone very little tinkering from my part, pretty much none at all, the only services installed after installation was apache, mysql and webmin.
Details:
CentOS 5.4 is installed on both the host and guest.
The guest runs on an lvm-partition.
I have two other vm's(also CentOS) running just fine, altough I'm a bit weary of updating them .
Attached are some screenshots of the boot-process.
I hope some one here can share some insight on this problem. It's making me pretty nervous seeing that our whole network is run by CentOS-installations (not that I'm certain that CentOS is the culprit).
I am running matlab 2010b on centOS5.6.
Matlab opened without any error either in the computer terminal or in VNCSERVER.
While running bench (of matlab) the session or the vncserver are crashing.
In some cases the bench run for the first time without any problems, however it will crash the session or the vncserver on the 2-3 runs of the same code.
Any idea how to solve this issue?
I downloaded a 7gb file on my ubuntu, thing is I want to copy the file to an external HDD that is FAT32, so I cant copy the 7gb file.
If i were on windows i would use winrar and split the file in several parts.
What application can i use in ubuntu?
I am trying to create a workflow for upgrading various systems using kickstart. I was hoping folks can point me in the right direction.I have a system which already has Centos installed on it. However it is a stripped down version of Centos using a custom kickstart installer. Now I would like to upgrade these systems, using an updated kickstart file spec. I would like to be able to copy over required files into a partition on the system, make a change in the grub.conf, reboot the system and expect the system to use the kickstart file and the iso file located on a partition on the system to self upgrade the entire system.The partition which holds the iso on these systems may be raided, or it may be an LVM partition.
How do I specify in the kickstart file that the location of the iso is on an LVM partition? Is this even supported? I have tried specifiying the disk like so:
< -- isolinux/ks/harddrive.cfg -- >
upgrade
text
harddrive --partition=mapper/VolGroup00-LogVol02 --dir=/isolinux
[code]...
But the installer did not seem to like it. Instead of the iso, can I put the entire tree instead? Would that work?
I have a Centos 5.5 system with 2* 250 gig sata physical drives, sda and sdb. Each drive has a linux raid boot partition and a Linux raid LVM partition. Both pairs of partitions are set up with raid 1 mirroring. I want to add more data capacity - and I propose to add a second pair of physical drives - this time 1.5 terabyte drives presumably sdc and sdd. I assume I can just plug in the new hardware - reboot the system and set up the new partitions, raid arrays and LVMs on the live system. My first question:
1) Is there any danger - that adding these drives to arbitrary sata ports on the motherboard will cause the re-enumeration of the "sdx" series in such a way that the system will get confused about where to find the existing raid components and/or the boot or root file-systems? If anyone can point me to a tutorial on how the enumeration of the "sdx" sequence works and how the system finds the raid arrays and root file-system at boot time
2) I intend to use the majority of the new raid array as an LVM "Data Volume" to isolate "data" from "system" files for backup and maintenance purposes. Is there any merit in creating "alternate" boot partitions and "alternate" root file-systems on the new drives so that the system can be backed up there periodically? The intent here is to boot from the newer partition in the event of a corruption or other failure of the current boot or root file-system. If this is a good idea - how would the system know where to find the root file-system if the original one gets corrupted. i.e. At boot time - how does the system know what root file-system to use and where to find it?
3) If I create new LVM /raid partitions on the new drives - should the new LVM be part of the same "volgroup" - or would it be better to make it a separate "volgroup"? What are the issues to consider in making that decision?
I have 2 different mounts. One points to a local windows share(NTFS ->Samba) and the other one points to a PPTP VPN connection sharing(I belive that is NTFS too). I use "cifs" scheme in my fstab to mount these. And I use my Debian box to copy between these 2 mounts. I have started using Rsync for that purpose, I think that it works fine for now. My main problem is that it looks like Rsync cannot figure out if the files are same or not in source and target folders when I use these mounts. Most of the time Rsync copies the same files and folders over and over again even though those files and folders are on the target.
I am wondering if there is a way to make this scheme work? Being on a Vpn connection(slow) a Windows box, Rsync could have save a lot of my time if it could have recognized the files and folders that are same on both ends
Last year I was looking into fault-tolerant distributed file systems and I recall one kernel-based system that required a physical partition on each machine in the cluster, but would treat it as a single volume - ie. a write on one server would appear on the disk on all the servers.Unfortunately I didn't bookmark the specific system I was looking at, and now a year later I can't remember the details.What I don't want is NFS - a single file server with a file system mounted on various machines. What I do want is mirroring - one disk shared among multiple servers, so that if one server dies, it doesn't make any difference to the rest of them.
A bit of investigation turned up Red Hat's GFS, which kind of looks like what I want, but looks more and more like an NFS model to me. I was wondering what everyone's opinion of the various options out there were.
How to get the permissions of any file systems
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what does it mean?
"permission denied while opening filesystem"
through commands can we give/get permissions of file systems
I am unable to install CentOS V5.4 on my work station.
After collecting the config info (root password, etc.) the installation immediately gets disk write errors while doing PVCREATE.
I'm installing from the DVD to the 136GB SCSI drive. The drive is known to be good and is writable as a Windows
volume.
The scsi drive is the only drive selected for installation.
I've selected to delete all partitions on the volume and install default configuration however the new partition is not created. code...
This started happening last week. Whenever I try to delete a file that is not in my /home directory I get the message:
Cannot move file to trash, do you want to delete immediately.
I have found a couple threads in the forums about this issue, but it has always been associated with windows or samba shares.
This is happening on my computer, not on a shared folder or through samba. Its a little frustrating to say the least.
