CentOS 5 :: Reinstall Centos - But Keep /usr /home?
Dec 7, 2010
I have accidentally clobbered my root path /, but /boot and /usr and /home are okay. Silly me instead of doing a fsck I did a mkfs - arrgh!
/boot is on a separate partition and /, /usr, /home and swap are in a LVM I do have a backup of / on a separate machine which uses backuppc. getting ssh and rsync going first will be a priority. Luckily the machine is not a critical one as it only runs Oracle and mySQL...both databases are on /usr partition
My question is can I have the install only install the /boot and / parts but leave the /usr and /home alone?
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Feb 28, 2010
I built a home server (NAS/WWW/SSH/media server etc) and chose CentOS 5 as the OS (stability, easy of configuration).I was just about to start tuning the power consumption when I realised that the kernel CentOS uses is so "old" that it does not support the latest reduced power consumption enhancements that Linux has achieved in big strides in the recent past (we are probably still talking 6-12+ months ago e.g. tickless kernel)..
So my questions; 1) I know CentOS was maybe not meant for home servers (certainly its not its primary purpose), but if it is, any ideas of what kind of power consumption it takes (I know its relative) and if there are particular power consumptions that are worthwhile?
2) Do you recommend me compiling my own 2.6.21+ kernel from kernel.org or am I just likely to have compatibility issues (I really did not want to do that) or when is CentOS 5.4 supposed to have a newer 2.6.21+ version kernel?
Was it wrong of me in principle to choose CentOS for a home server when I am power conscious? (I don't have a low-power VIA processor either but a P4 so I am really just hoping to make do with software changes).
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Jun 11, 2011
I am wondering what is the fastest way for me to move files from a VPS running CentOS to my home PC? I do not have FTP or anything like that installed. Are there commands I can enter in putty, for example, that will simply download an entire directory on the VPS onto my home PC?
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Jul 28, 2011
I have a lot of problems with the server and I want to reinstall the Centos in order to have a clean system. The problem is that I have access only via ssh console (with putty aplication)
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Oct 23, 2009
Is there a way via yum to reinstall X/gnome/XFCE?
after the 5.4 upgrade I know longer have a X session. I can ssh in but no X whatsoever (monitor is blank).
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Nov 13, 2010
I tried this once but my post disappeared. A thousand pardons if this is a dupe.Through the magic of typos, I managed to delete my ssh binary file. I can receive SSH connections but am unable to SSH into another computer.I located the RPM that looks to be what I'd want -- openssh-4.3p2-41.el5_5.1.i386.rpm -- but it refuses to install. RPM gives me the following conflicting messages:
[root@lightning packages]# rpm -i openssh-4.3p2-41.el5_5.1.i386.rpm
package openssh-4.3p2-41.el5_5.1.i386 is already installed
and
[code]....
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Apr 30, 2011
I've installed cpanel and the only way to remove it is a complete reinstall of centos. So, I just need to know how do I reinstall and reformat centos correctly?
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Aug 23, 2011
How do I reinstall cent OS 5.2 without formatting the partitions? for example: I've create several partitions (create custom layout) and OS is installed completed. But I have some application need to reinstall at "clean" OS. If I delete and create same partitions again it take long time to format the partitions. How do I just reinstall OS without formatting those partitions?
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Jan 11, 2010
I plan to reinstall linux (CentOS 5.2 = RHEL5) in my laptop because of insufficient diskspace partition in /. Only allocate 8.8G for /root and the rest to /app/Current my kernel version is 2.6.28, which are latest than the CentOS release which is 2.6.18, I think. Someone compile the kernel for me because he said my laptop network card is not recognized in the 2.6.18 released. I am not sure how he did it. I am a bit worried because if I reinstall again, I will face the same problem that my network card is not recognized!.
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Jan 17, 2010
I have a newly installed CentOS 5.4 on Gigabyte G31M-ES2C, I had to change the motherboard since it has some problems. Unfortunately the new motherboard is a rev 2.x board, which has a different onboard NIC (old one is RTL 8102E, new one is AR8132), so now my ethernet connection doesn't work anymore (no eth0 device), I assume I need to install a new driver for the AR8132? If so, what's the steps to do so?lspci shows Ethernet controller as: Attansic Technology Corp. Atheros AR8132 / L1c Gigabit Ethernet Adapter (rev c0)
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Jul 22, 2010
I install CentOS5.5 on VMWARE,the system is working properly.I want to test reinstall CentOS5.5 on VMWARE,So,I make a snapshot.My system partition（Manually partition ）is:/(1G),/boot(512M),swap(2G),/usr(30G),/var(10G),/data(20G).Each partition is independent of the ] partition.I reinstall CentOS5.5 by CentOS5.5.ISO.I format / partition,and other partition unchanged.However, the installation process was wrong:
==============================================================
Package Installation
Error running transaction[code]...
How I can reinstall CentOS（Do not lose important data）？Does there have any authoritative description？
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Sep 2, 2010
Just installed updates with the recent kernel update 11.3 for Centos 5.5. I have had guest additions running fine before that. Now when I try to reinstall the guest additions (which is necessary) I get the message Detected Unsupported x86 environment. how to get this going since it was running fine before the kernel update.
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Dec 21, 2010
I intent to develop a centos server with lamp. What I want is connect the server to any kind of home network and access it by hxxp://myserver.
If you had to develop a solution with the intent to plug in the box by Ethernet to a router and access it with a browser using the server name what would you do? That's basically what I'd like to know.
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May 15, 2010
I just installed 5.4 on a home machine and I would like to get a UPS that will auto shutdown the server if the power goes out. Here an inexpensive tripplite from Costco. [URL] I only need it to shut down the 1 centos 5.4 machine if the power fails. Tripplite has linux software now that will shutdown machines. [URL]
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Dec 16, 2010
How would i go about restricting users to there home dir in sftp and in ssh so that they can not go poking about other dir and files thats above there home dir ?Operating systemCentOS Linux 5.4 Kernel and CPULinux 2.6.18-194.8.1.el5.028stab070.5PAE on i686
Also it will have to be a low resource usage as i dont have much memory on it
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Aug 4, 2010
Problems with xen 3.1.2 creating and installing domU CentOS 5.5 I am trying to do a virt-install --prompt --paravirt, and the install error out while trying to download install RPMs. I have googled for xen centos virt-install and various permutations. I have found similar howtos for 5.4 and 5.3, but they resulted in the same outcome. I did find several posts with similar issues, but no solution was posted.[URL]..
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Feb 9, 2011
I am in the process of building a new server on an Asus P5QPL-AM motherboard and an Intel E8600 processor.explain to me the difference between the two versions and what would you recommend.Also, is there any advantage of SATA over IDE hard drives?
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May 8, 2011
How can I successfully SSH using SecureCRT from the Internet to my Centos Linux box at home behind the router? I have a DGL-4500 dLink router. I configured a Virtual Server in the router for SSH 192.168.0.182 Protocol 6 TCP public port 22 ? private port 22 Schedule Always Allow Inbound Filter Allow All. Further I Enable DMZ for 192.168.0.182. I got my Internet IP address through "what is my ip website." Now every time when I try to SSH, I get a message "The remote system refused the connection". Here is iptables -L command output;
[root@localhost ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere
Chain FORWARD (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere
[Code]....
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Jul 17, 2011
To be clear: I searched and used the button above to find similar topics, but my solution wasn't there.
I was very busy with work the past months, so my quest to become a Linux Crack hasn't borne too many fruits yet So I am still a ...
So here is my problem:
I have 3 users on my CentOS VPS:
root
user1
user2
For security reasons I only log on via public key, root access is denied. Admin is user1. user2 is a regular user.
I want user1 to be able to additionally access user2's home directory, when I log in via SFTP using FileZilla, because occasionally I want to move files from user1's home directory to user2's home directory. But I need user2 to still be able to connect to his home directory via SFTP, too (everything I tried up to now always "breaks" his account).
How do I do that?
user1 is in the wheel group in order to be able to become root if necessary.
user2 is in the user2 group.
I tried adding user1 to the user2 group, but that alone doesn't seem to give him access to user2's home directory.
I know this must be about rights and permissions, maybe group permissions? I sit on it about 8 hours now and don't see no light at the end of the tunnel. When I think I got it I suddenly can't log in with user2 anymore (neither PUTTY nor FileZilla).
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Mar 25, 2011
I got below Code from Someone so that I configure Squid using which I can block websites.
#!/bin/sh
# squid server IP
SQUID_SERVER="192.168.0.2"
# Interface connected to Internet
INTERNET="eth0"
[Code]....
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Aug 22, 2011
Is it possible to install java in my home directory and that only i can use it ?
Because i dont have root access.
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Aug 17, 2010
I would like to remove openldap from my Centos home-server..
Centos offers me:
Quote:
Removing:
openldap i386 2.3.43-12.el5_5.2 installed 592 k
openldap x86_64 2.3.43-12.el5_5.2 installed 598 k
[Code]...
..obviously I'll not remove openldap by this operation.. but my question is: there is another way to remove a single package with yum without "consequences"?
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Aug 27, 2009
I have attached a 2 TB LUN to the HP Blade Server running CentOS 5.3 via a Qlogic HBA. To provide the cluster users with sufficient storage areaa, I want to move only the home directory from the default partitioning schema to the attached storage and leave the remaining partitions on the main harddrive of the server. So, having copied user directories & files to the new location, i.e.,
/cluster/home2 on the new storage partition, what modification(s) should I make on the server?
/export/home is the default location for the users.
/cluster/home2 is NFS shared directory serving as the new home location for the users.
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Sep 3, 2009
I just moved into a new apartment and now connect via DHCP. Everything seems fine network-wise, except that when I'm at work I can't connect to the home box. (CentOS 5.3 x86_64) One thing I noticed is that I can't really determine my "true" IP address. What I mean is that it looks like my IP is 192.168.0.190, but when I use linuxdcpp, and enter a hub, I'm told my IP addr is actually something like 71.192.163.206. Here's some info:
[root@localhost cwatson]$ cat /var/lib/dhclient/dhclient-eth0.leases
option dhcp-server-identifier 192.168.0.1;
option domain-name-servers 192.168.0.1;
option broadcast-address 192.168.0.255;
[Code]...
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Oct 20, 2009
I would like to move a user's home directory to a different disk. Is there a "clean" way to do this? Specifically, is it safe to just copy all the .* files to the new destination and then change the home in the user config? Or are there maybe environment entries with absolute paths which will cause problems with this strategy?
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Dec 1, 2009
I have a problem from time to time. Now is such a time. Nautilus is not able to read/enter my own home directory. It can enter/read ANY other directory, but my own home directory. Killing the Nautilus process, doesn't help. Logging out doesn't help. I need to reboot to get nautilus to read my home directory. Sometimes, it suddenly appears after a couple of minutes, but not always. What is taking so long time or causing the hanging? What should I do?
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Jun 21, 2010
Im trying to make a webserver at home. I have a static IP Address of my ISP (o2) I have built a server ( 2.8 p4HT, 2GB Ram, 500GB HDD) Just to test... But, i dont know what to do in the IP Address settings for the IPv4 ( I think thats what it is) Do i put my static IP address in my ISP gave me, or the local IP of the server ( Wich is 192.168.1.72) Im realy confused. Ive tried everything i can think of, Reinstalled the os about 40 times up to now...
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Nov 30, 2010
I am going to install CentOS 5 on my pc , for3d modeling , and i have some doubts about partitioning the system.
I know that i can have /, /var , /tmp , /home and other directories as individual partitions. I know that i can use ext3 , or xfs ( i know that anaconda doesn't let to use xfs, but i know a way of migrate partitions to xfs after installing) or ext4 , and others , without problems.
But i could for example, once installed all with ext3 , have for example / on ext3 , and /var and /home on xfs.
For me it would be very interesting have /home in a another partition and as xfs (migrating it later from ext3) as mostly i will save in /home a lot of big files ,images,dvd isos,renders , binary maya files and like, and i see a advantage of use xfs with /home.
But a lot of people also use xfs for / as well , but as / has a lot of small files , perhaps use xfs on /var and some other directories, could be good (because xfs performance deleting files or other features), and leave / as ext3 for example.
So is it possible to have different filesystem type for some directories under / ,(for example /var and /home as xfs, the rest as ext3 in / ) , without having any problem ?
(not counting using xfs for a directory that won't see improved his performance because has a lot of static small files or like)
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Jun 26, 2011
Centos noob with fresh install of Centos 5 DVD on AMD w ATI Radeon 9250 /1 gb RAM/320gb HDD. Don't see an "installation" forum so posting here. Read here -> and following page which seems to indicate the default option on a new unformatted 320gb HD is suitable for most users, so selected it just to see. Install went fine. Using KDE as default desktop.cat /etc/fstab shows:
[root@centosdesktop user]# cat /etc/fstab
/dev/VolGroup00/LogVol00 / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
[code]....
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May 26, 2010
I noticed in Fedora that in Authenticate Configs ->Advanced, that there is an option to "Create home directories on the first login".I'd like to know if its possible to enable that through a text config file on a CentOS box that has ldap authentication enabled. Right now it's complaining that the home folder does not exist upon loggin with an ldap account.
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