CentOS5 - HDD Partition

May 14, 2008

I'm trying to install CentOS5. Although the default partition should work fine for me, but I would like to create my own partition for /var, /usr/, /tmp, /swap, etc. Can you recommend me a good partion including the size. My server has 4GB RAM and 500GB SATA2 HDD. I don't use much space of HDD.

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Raid Disk Partition Errorc :: Warning: Invalid Flag 0x0000 Of Partition Table

Mar 16, 2008

I have a disk in raid, but it seems raid is not working correctly. I took it out, and plug into another server without raid. However, fdisk shows error


#fdisk /dev/sdb
device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.

The number of cylinders for this disk is set to 20023.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help):

Should I correct the partition table now, or should I put it in another raid for checking?

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Resize Partition/create New Partition/lvm

Jul 4, 2008

i have centos 5 server i want install xen on it on my server is just one partion how may i resize this partion( without format partion/with put delete data) and then create lvm partion?

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Less Ram With Centos5

Jul 6, 2007

we got a new box with 4GB of ram but seem that Centos 5 show only 3Gb why?

root [/]# free -m
total used free shared buffers cached
Mem: 3290 2757 533 0 228 968
-/+ buffers/cache: 1560 1729
Swap: 8001 0 8000

root@mikonos [/]# uname -a
Linux 2.6.18-8.1.6.el5 #1 SMP Thu Jun 14 17:46:09 EDT 2007 i686 i686 i386 GNU/Linux

the same server with Centos 4 report 4GB

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Centos5 Use Less Memory Than 4

May 18, 2008

centOS5 don't come with mass install software?

Any perl modules and rpm sources can compile on 64bits version?

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Libxcrypt On CentOS5

Jan 26, 2008

Trying to get something sorted on a VPS that I want, but when I try to run a script I get the following error:

cp: cannot stat `/lib/libxcrypt.so.1': No such file or directory

which is easy enough for me to understand however, I cannot find what package I need to install to provide the file.

I have searched for libxcrypt* on the box to see if its hidden elsewhere but to no avail.

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Install Xen Centos5

Nov 26, 2007

i have installed xen kernel et libraries, i try to install a guest os with virt-install, and when i hit the network installation it doesn't seam to work. The installation doesn't go further.

Anyone has experience with xen ? I'm a good unix admin but i havn't worked alot with xen yet. I can make it work on other hardware but it seams that for some reason it doesn't work on my dedicated server.

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CentOS5 And CPanel :: Subdirectories

Nov 18, 2008

I have a VPS with CentOS5 and CPanel...for some reason if I went to that URL it would show the website for the second account created in WHM...so I modified the httpd.conf and added the domain, but for some reason subdirectories won't work on it.

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Unable To Connect Via SSH With Centos5 X64

May 27, 2007

I have been struggling with a couple of new servers that we want to run Centos 5 on. For a second assume that is our desire so going back to 4.x isn't an option yet.

Now while I mention Centos 5, the problem seems to be with PAM and x64.

When trying to login to the server via ssh, the login succeds but then immediately kicks the user out. I have tried this with root and another user created. I have set the UsePam option to no to try to resolve this in sshd_config.

On the H-Sphere forum I found this reference:


" if i try to connect with ssh and i enter the right password i get an error and ssh closes the connection. The answer already was in the ticket you opened:


That is known bug dealt with PAM authentication.

The bug was fixed for i386 systems long time ago. But it was not fixed for x86_64 architecture.

We build FreeVPS kernel new version 1.5-13.1 for x86_64 architecture to fix the problem.
We also installed the kernel into the box IP

Please reboot the box with the new FreeVPS kernel version: 2.6.9-freevps-1.5-13.1smp.
Let us know the result."

Does anyone know how to resolve this? A reinstall of PAM was attempted by a well known sysadmin here but to no avail.

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Steps To Install FFMPEG On Centos5

May 5, 2009

Can someone please provide me steps to install FFMPEG on centos5.

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CentOS5: VI Not Showing Files With Color

May 2, 2007

I tried CentOS5 on my new server. Having CentOS 4 on all other server I never faced this issue. I always get server with vim -minimal installed and I install vim enhanced and common to get text color highlighting.

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Centos5 Cant Mkdir Numeric Directories

Dec 30, 2007

We have a weird issue on one of our centos 5 servers, running the 2.6.18-53.1.4.el5 kernel

for some reason we cant mkdir any directories that are numerically named

ie mkdir 5789 doesnt work

alpha and alpha numeric work fine... ie mkdir ab567a


[root@]# mkdir 6
mkdir: cannot create directory `6': No such file or directory
[root@]# mkdir 6ab

Someone suggested the adore-ng rootkit was to blame but we have run ossec root check, rkhunter and chkrootkit and even run clamav over the drives and cant find anything nasty

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CentOS5 VPS - Yum Barely Working. How To Exclude A Mirror/Mirroring For YUM?

Apr 2, 2009

On a CentOS5 VPS I have access to "yum update" barely working due to the base mirror "styx.biochem.wfubmc.edu" being tremendously slow.

I'm trying to find out how to disable that mirror possibly via a mirror exclude setting in yum.conf or some other way. I've been searching but I've not found any documentation on this so hopefully somebody out there will know how to make this change.

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Howto Install PHP/Java Bridge In Server Centos5.2

May 10, 2009

i have server
system centos5.2
Apache 2.2.11
PHP 5.2.9

how can install HP/Java Bridge?

in this link he said install Apache Tomcat
but i have Apache 2

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Supermicro H8DA8 Kernel Issues On CentOS5 | HyperVM

Oct 24, 2008

I just colocated a 2U supermicro server for a VPS node and experiencing troubles getting HyperVM (ovz) and centos5 to run on it. First of all, the h/w specs.:

2x dual-core opteron 280
12GB DDR400 ECC Reg. RAM
Supermicro H8DA8 mainboard
Adaptec 2120S RAID card with BBU, writecache on
6x73GB SCSI as RAID5+hotspare

All firmware updated

I asked DC staff to load centos5 x64. They installed 5.1 and it was running fine.

However, they said centos 5.2 didn't install. So, I ran a yum update and it updated to 5.2 including kernel.

After the update and issuing a reboot, the box did not come back online and on consoling it, they said error messages scroll too fast to be read after the centos splash screen and it loops on like that. Only the 5.1 kernel 2.6.18-53.el5 seem to boot fine though.

I booted with the old kernel and installed hyprvm; set grub to boot using the ovz kernel and rebooted. Sadly, the same errors and server non-responsive.

Does anyone have any clue regarding this issue? Should I try my luck with centos4.7 x64 instead?

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How Do I Configure Dedicated IP's On Virtual Machines Running On A CentOS5 Host

May 24, 2009

How do I configure dedicated IP's on Virtual Machines running on a CentOS5 Host?

I installed VMWare Server 2 almost without a problem using no GUI, I now have the web interface for the VMWS2 and any machine I create and run on it seems to do so without a problem.

The thing is, I can't connect or know how to configure this virtual network so I end up using 2 dedicated IPs on the Virtual Machine.

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LVM Partition

Jul 31, 2009

we can able create lVM partition but just we have 9 GB lvm partition i cant create more than or use full disk space

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 91201 732572001 8e Linux LVM

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New Partition

Jun 14, 2008

I have migrated one raptor disk to a 4 raptor raid 10 disks.

I was threated to being blocked from their helpdesk because they say it is a hardware issue.

I need help on 3 things:

- Is possible to just create a new partition on the not used drive ?

- Is this a software or hardware issue ?

- Can you recommend another support in case i am banned from the actual support ?

> root@server01 [~]# fdisk -l
> Disk /dev/sda: 299.9 GB, 299978719232 bytes
> 255 heads, 63 sectors/track, 36470 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> Device Boot Start End Blocks Id System
> /dev/sda1 * 1 13 104391 83 Linux
> /dev/sda2 14 268 2048287+ 82 Linux swap / Solaris
> /dev/sda3 269 395 1020127+ 83 Linux
> /dev/sda4 396 18235 143299800 85 Linux extended
> /dev/sda5 396 18235 143299768+ 83 Linux

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Create A Partition In A Vps

May 15, 2009

How can i create a /tmp partition (as cpanel recomends) in my openvz vps to install cpanel?


/tmp 1 GB (1024 MB)
/ Grow to fill disk.

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Partition Of VPS Windows

Mar 29, 2009

I have VPS Windows. I want to resize partition C 50Gb become 20Gb and then create partition D 30Gb for data , I used softwares Partition Manager 8.5 Enterprise Server Edition, Acronis Disk Director Server 10.0.2169 but I can't.

I used command line :

sfc /scannow

to check HDD on this VPS Server 2003 64b but can't too.

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Centos 5 Partition HD Via SSH

Apr 22, 2009

my DC has partitioned my server really complicated and im trying to install various different control panels and im running out of space, so id like to combine all my partitions into one.

How would i do this via SSH in centos 5.2?

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Partition /usr Full 100%

Nov 25, 2008

i have problem and make all solution and the problem stay
the /usr partition is full 100%

i remove all logs in :
and make du -h --max-depth=1 in /usr that's the monitor :
76K ./doc
37M ./sbin
366M ./src
110M ./X11R6
14M ./php4
176K ./man
16K ./lost+found
24M ./evolution28
2.2G ./local
12K ./etc
19M ./libexec
1.2G ./share
62M ./include
181M ./bin
362M ./java
958M ./lib
1.4M ./kerberos
6.4G .

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Creating A New Partition

Mar 6, 2008

The server I got from LayeredTech has two hard drives, obviously they set up the first hard drive with Linux etc.

The second hard drive is just there, not showing any partitions in 'fdisk' when I checked, so I assume they just leave it blank in every new server for the owner to deal with however they want.

I've been looking up guides to create a new partition for the full size of the hard drive and then mount it. However, it hasn't been very successful. Everytime I created the partition in fdisk, I have to set a size, and then when I mount it, it only says that the drive is ~98MB big.

Is there a way to partition the drive to its full capacity? And then mount it somewhere on the system? Or anywhere I can go to to find out easily?

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Resizing Partition

Apr 23, 2008

I recently ordered a new dedicated machine and for some reason the guys set it up so the /home partition is a massive 250GB, and the / partition is a tiny 20GB. Since that's where all the plesk domains will be storing their files, I'd like to resize things a bit. I'm thinking of making the / partition 200GB and the rest for /home

It's a CentOS machine and the filesystems are ext3.

How can I do this resizing, and are there any caveats I should be aware of?

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How To Partition Drive

Mar 28, 2008

im assembling my server now....waiting on the 90degree connectors. It is as follows:

SUPERMICRO CSE-512L-260B Black 14" Mini 1U Server Case
ASUS M2N-MX SE Plus AM2+/AM2 NVIDIA GeForce 6100 Micro ATX AMD Motherboard
AMD Athlon 64 X2 4200+ Brisbane 2.2GHz Socket AM2 65W Dual-Core Processor
Dynatron A48G 70mm 2 Ball CPU Cooler - Retail
2gb ddr2 6400 ram
Seagate 500gb 7200.11 32mb hdd
WD 37gb raptor 10k rpm

the wd drive was lying around the house so i figured id add it since i had an extra slot and figured the speed wouldnt hurt.

My question is....how should i partition the drives.? I have 500+gb of space on 2 hard drives. I plan on using centos 5.1 and am downloading the iso now.

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Best Possible Partition Scheme

Jan 21, 2008

What would be an optimal security partioning scheme for a C2D server with a 160 gb HD
Usage for small web hosting company

I dont feel safe with the default setup that I have heard of with the company

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Raid1 Partition

May 26, 2008

If this is not in the right forum for this... I'm sorry didnt knew where else it may go.

I have to build a new server with RAID 1 and WHM/Cpanel installed (in fact i dont have to, but i need to learn ASAP and my boss gave me an old server for practice).

I've seen the installation guide of cpanel but the sizes of the partitions apply to a disk of 80 GB (i think so) so is there any way to calculate the size of the partitions, regardless of disk size? cuz mine are of 250 gb each.

I'm trying to install it on centos 5 on text mode, so far i have been able to successfully install the system (with partitions of any size... since is a test doesnt matter) with RAID 1.

After that i ran cat /proc/mdstat and in some partitions shows me this


I've read in some places that this is not a big issue... but in other places says it is... maybe i did something wrong

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Renaming A Partition

Jun 21, 2007

I've spent a while on google and the forums but couldnt find an answer to a question.

Is it possible to change the name of a partition in linux?

e.g. its currently called Disk /dev/mapper/VolGroup01-LogVol00 (/)
But i would rather name is something normal like /dev/sda1

Is this possible with out losing any data?

If so how can this be done?

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Web Server Partition

Mar 30, 2007

My PHP/MySQL web application will be put in a unix/linux environment, and the guy who is setting up the server is asking me this:

Do you have any partition requirements?

I don't know too much about hardware, how should I answer him? do you have any suggestions?

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Plesk Disk Partition?

Apr 30, 2009

I have 2 x250 gb disk on a server. What configuration would be the best for partition to run Plesk and webhosting on the server?

I want www files on 2nd disk and server is hosted at Softlayer that we can reload server from web interface.

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Partition Is Recommendable For Openvz

Oct 31, 2008

partition is recommendable for openvz

Which project of partition is recommendable for openvz in the main server?

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