CentOS 5 :: New Installation Of 5.5 Using Multiple Disks - Fusion
Jan 13, 2011
I've downloaded 7 ISO images in order to install CentOS as a Virtual Machine on Fusion. First disk goes through successfully, but when I try to "insert" 2nd disk, I get an error message "unable to access the cdrom". I've ejected 1st disk, mounted second. I tried all possible scenarios I could think of, but still getting an error message.
I see the disk mounted in a terminal:
/dev/disk1 600600 600600 0 100% /Volumes/CentOS_5.5_Final
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Mar 21, 2009
can anyone know how to install the compiz-fusion desktop theme on centos-5which is very great experience and fun, like Macos X like look and feel.
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Jun 25, 2015
I have given up (for now, at least) the idea of a raid solution but I will still have 2-3 hard disks available for my workstation. If I choose to reinstall from scratch,can I have essentially two different homes?
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Jul 7, 2010
I recently tried installing Lucid x86 on my system beside Windows 7 and managed to screw it up.
My disk setup is this;
Disk A = 3 partitions (1st partition=Windows 2&3 partitions=Data)
Disk B = 1 partition
Disk C = 3 partitions (1st partition=Data 2&3 partitions=Ubuntu & Swap)
Disk A = SATA and internal
Disk B = SATA to USB external
Disk C = SATA to USB external
I want to install Lucid on the 2nd partition on Disk C. And dual boot it with Windows on Disk A.
During Lucid setup i specified the partition for installation (C2) and asked for GRUB to install on Disk A (no partition specified) so GRUB is always used as the dual-boot manager even if the Lucid disk (Disk C) is ejected. Once installed and rebooted i was taken to the GRUB rescue prompt as no installation drive could be found (a long string of numbers (looked like a Disk ID number???) was also shown). Obvviiusly, i could not access either OS on my system at this point. I had my W7 DVD handy so it was just a case of recovering the windows boot manager and i could use my PC but how do i go about installing Lucid with this setup? Should i specify a partition for GRUB to install to? I have a hunch this is where i am going wrong but am too scared to try again and potentially balls things up.
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Mar 31, 2010
I have/had a PC with several hard drives, and a mix of ubuntu and windows on multi boot.The old boot drive died screaming, and I need to start again. (But my data is safe! yay!)
Is there anything special about which drive can be the main drive to start booting from? Or to put it another way, can I install to any of the other 3 and expect it to work, or do I need to switch them around so a different drive is on the connections for the recently dead one?
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Nov 1, 2009
A package dependency could not be found. More information is available in the detailed report.
Details:
Quote:
package could not be removed, as other packages depend on it.
maybe simple task, but still those errors are killing me.
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Oct 11, 2010
This question has been bugging me for a few days now: How do you mount, say, 3 HDDs to a single partition. From what I've heard, it's possible, but I'd like to know how. I'm running Crunchbang! Linux, based on Ubuntu, in case you're wondering.
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Jan 11, 2011
I am looking for an application (better kde one) that can search two external hard disks I have and find any duplicate files. I did some backups before to one disk which i copied few years ago to the other disk. Right now I would like some program to check files and tell me if there are the same.
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Nov 29, 2010
First and foremost, I really appreciate this newer release of Ubuntu 10.10. My boss wanted to use SLAX, but I had great experience with 8.10 and I have installed 10.10 on laptops and netbooks. on with the challenge for the day: I have configured a user's profile on 10.10 to startup Firefox in kiosk to go to our secure portal. The problem is I don't particularly care to REDO configure a user's profile session over and over.
So, if any of you whiz kids out there can come up with a better way to copy a user's profile...particularly the files that are used for Mozilla Firefox so that I can just copy and paste the files onto another hard drive with a fresh 10.10 that would be great.
The ONLY issue I have working with Linux is that I can not rapidly deploy my settings I have set for 'user' as I can with Windows. I am sure if there was a way to do this, deployment of Ubuntu 10.10 would go MUCH faster. As it stands, if I am able to pull this off...there will be a potential of removing Windows desktops. Which is fine for me because I can manage desktops a little easier on this platform than Windows.
This is what I have installed in Ubuntu:
IcedTea (for Java plugin for Firefox)
Profile Editor
R-Kiosk
All those work great with Firefox, but getting those installed on a new system is a bit daunting.especially when some users suggest doing cloning when in reality...I plan to do the install via LiveCD and THEN hopefully create the user on the fly in Terminal and copy the user files needed off a flash drive into the home/user folder
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Oct 2, 2010
im new in cent desktop i wanna install a powerfull mediaplayer like VLC i search for installing guide but the all told about RPMFusion i wanna install it but i see an error Missing Dependency: system-release >= 11 is needed by package rpmfusion-free-release-11-2.noarch (/home/Arash/Desktop/rpmfusion-free-release-stable.noarch.rpm)
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Dec 2, 2010
Alright, I have this issue on both SystemRescueCD and Debian Squeeze. I have an ASUS P5Q Turbo board that supports hardware RAID. If I configure an array and then start the Linux installer or boot the rescue CD, I get /dev/sda and /dev/sdb instead of an array. What gives? I need to start installing within the hour so I am desperate for an answer!
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May 2, 2011
I have a PC with 4 harddisks and one ssd drive, presently PC boots from the 1st harddisk and other harddisks (sometimes 1, 2 or 3, depends upon the requirement) are used for the storage. Now i want to boot the PC from SSD and use the other harddisks for the storage only. My problem is that when system boots it takes 1st harddisk as sda and SSD as sdb, if i am using only one harddisk, and if i use 2 harddisk it takes sdc as SSD. So i am not able to give fix boot point in menu.lst file, if i wish to use root filesystem from SSD.I am using 2.6.33.7 kernel and grub bootloader. I have tried using initrd with udev but not able to include and start udev properly in initrd. I am trying to boot from UUID or LABEL, but no success. Am i missing something in kernel to get the UUID or LABEL.
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Jun 10, 2010
By fiat I must distribute my homedirs across multiple physical disks/partitions. Unfortunately this is not open to discussion so obvious solutions like a lvm home partition are not available to me. The issue: Users created with homedirs on the main home partition (the one created as home during the f13 install) behave as expected, but if I create them on a different partition (home9 for the sake of this example) the users are not able to login (dropped back to login screen), nor run x-apps if su -'d to in a konsole.
If I 'su - <user-on-home9>' in a konsole, I get delivered to the /home9/<user-on-home9> as expected, but x-apps fail with the error: 'cannot open display: :0'. This can be temporarily fixed with the command 'xhost +SI:localhost:<user-on-home9>', but I would rather fix it permanently at the source.
This appears to be an selinux problem from the following.The contexts of the the two rootdirs are the same
% ls -Zd /home /home9
drwxr-xr-x. root root system_u:object_r:home_root_t:s0 /home
drwxr-xr-x. root root system_u:object_r:home_root_t:s0 /home9
but when I create the users (using useradd or the gui) their respective contexts differ:
% ls -Zd /home/user5 /home9/user6
[Code]...
So, my questions for you selinux experts are 1) is it possible to have homedirs spread across multiple partitions with selinux, and if so, how, 2) Why, even when I manually set the dir/file contexts to match a properly functioning user5 from /home, do users from /home9 still not work (as far as login and x-apps).
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Jun 16, 2009
I have a CentOS 5.3 box with three network interfaces in it. Each interface is attached to a separate VLAN and I want traffic to stay on each network segment.What I can�t figure out is why I cannot get each interface to have its own gateway and everything gets sent through the default gateway.The basically takes my possible 3Gb total bandwidth and throws it down a single 1Gb pipe.Then on top of that, if I take down the interface (ifdown) that has the current default gateway,I loose contact to the other two interfaces.When I look at the routes, each one of the interfaces shows the gw as 0.0.0.0 and defers to the default route. So I delete the route and try to add a new route with:
[root@testsan ~]# ip route add 10.1.15.0/24 via 10.1.15.1 dev eth2
but end up with the error:
RTNETLINK answers: Network is unreachable
[root@testsan sysconfig]# cat network
NETWORKING=yes
NETWORKING_IPV6=no[code].....
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Nov 26, 2010
I am having problem with compiz-fusion icon in fedora 14... I have installed compiz, but when I click the compiz-icon to start it.... the system logs off and again asks password...
Same thing I have done in my HP laptop, but in it, its working.. The problem comes in my pc only... I also want some help for knowing, how to add compiz-icon in the startup of the kde session...in "FEDORA 14", so that when I login using kde, the compiz-fusion automatically starts with this process... Somebody please give me a solution...Frnds I am having problem with the nvidia driver for fedora 14.. Whenever I start compiz.... The screen blacks and logs off the session
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May 9, 2010
System Specs
3.2 GHz Dell GX280
Sans Digital TR5M-B in JBOD configuration (PCIe 1x)
CentOS 5.4 installed via QmailToaster instructions. Up to date via YUM.
No GUI (no KDE/Gnome), command line only.
My old server died and reinstalled based on above with no problems. All is running well. Box is used as mail/web/home disk network. I want to be able to spin down the drives in the Sans Digital box when idle as they are used mostly for bulk storage (video editing, etc...). The external enclosure on my old server automatically spun down idle drives so this has never been a concern. Google has not helped me so far (operator error?). I did see "hdparm" may work if the drives support it but I am not sure if this is the nest solution.
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Jan 13, 2011
I recently followed this guide to create a RAID1 [URL]First I partitioned the disks with fdiskI made the RAID array with
mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1
Then I created the filesystem with
mkfs.ext3 /dev/md0
I then mounted md0 at /Video with
mount /dev/md0 /Video/
Today I made a samba-share out of /Video/Rorschach to easily put files in there from my windows7-machine (the plan is to steam from my CentOS-server to my HTPC which hasn't arrived yet).I started to put movies in there. It went just fine for a while but then I got this message:
[URL]
How is that even possible when df -h looks like this?:
[root@Rorschach Rorschach]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
446G 70G 354G 17% /
[code]...
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Aug 17, 2010
I just installed RPMFusion free and non-free, and now update manager is telling me that it needs to install updates "RPM Fusion (free) Repository Configuration" and "RPM Fusion (non-free) Repository Configuration". When I try to install these I get a message asking 'Do you trust the source of the packages?" and i click 'Yes", it then asks for a password for authentication, and then I get message saying "Could not update packages. Failed to process request" and under more details:
failed to install signature: Traceback (most recent call last):
File "/usr/share/PackageKit/helpers/yum/yumBackend.py", line 2926, in install_signature
self.yumbase.getKeyForPackage(pkg, askcb = lambda x, y, z: True)
File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 4309, in getKeyForPackage
result = ts.pgpImportPubkey(misc.procgpgkey(info['raw_key']))
File "/usr/lib/python2.6/site-packages/rpmUtils/transaction.py", line 59, in __getattr__
return self.getMethod(attr)
File "/usr/lib/python2.6/site-packages/rpmUtils/transaction.py", line 69, in getMethod
return getattr(self.ts, method)
AttributeError: 'NoneType' object has no attribute 'pgpImportPubkey'
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Aug 27, 2009
How many disks are required to get Centos 5 up and running.? It has been awhile since I've done an install but I use to use just the first three disks, with the rest being the manuals and such.
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Feb 23, 2011
Setting up a new Centos 5.5 server with an LSI Logic 7402XP fiber channel HBA card connected by fiber to an enclosure with 28 SATA drives.This is just a bunch of disks.I want to mount them /disk1, /disk2,disk28. No RAID or LVM. After connecting the dsisks and rebooting there are 28 new devices /dev/sdc, /dev/sdd, ...
/dev/sdad. Going to /sys/class/scsi_disk will list all of them. Pick any one and go into device and you can cat the vendor and model and state is "Running." But try parted /dev/sdc and it just quitts. fdisk and mkfs produce errors. Attepting to read or write the device directly with dd fails. The mpt fusion kernel mods are present. I'm pretty sure this hardware is on the suuported list. And I've tried swapping out the card and cables in case of bad hardware. What am I missing to be able to partition and mkfs these disks?
getinfo is at
http://pastebin.centos.org/36873
[root@localhost dev]# cd /dev ; ls sd*
sda sda3 sda6 sdac sdb1 sdb4 sdc sdf sdi sdl sdo sdr sdu sdx
sda1 sda4 sdaa sdad sdb2 sdb5 sdd sdg sdj sdm sdp sds sdv sdy
[code]....
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Jun 1, 2011
I wanted to do a routine check/update today and I received this error code...
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Jan 13, 2010
I've just removed fedora 10 and installed CentOS 5.4 both x86_56 on my Lenovo ThinkCentre 9091-CTO workstation, and observed serious performance degradation while intensive I/O operations and huge load without significant CPU consumption in user mode with about 50% in I/o wait.For example if I do the "tar xjvf some_large_tar.bz" file and run vmstat i get the output below. This is the only cpu and io intensive process running. The load gets up to 6 on C2D CPU and the machine has unacceptable responsivness.
[root@f00 ~]# vmstat 5 10
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd free buff cache si so bi bo in cs us sy id wa st
[code]....
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Nov 15, 2010
I have a server wich is connected to an iSCSI storage and gets harddisks from this storage. Sometimes I have to add new disks to this server. Everytime I add a disk and make an /etc/init.d/iscsi restart on the server the disks don't have the same device name as before the iscsi restart.
It should be possible to gave the disks persistent names using udev rules. Now I tried to create different rules in "/etc/udev/rules.d/99-static-iscsi-names.rules" e.g.
# /dev/sdc
KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p",RESULT=="360a98000503355344c4a576864467877" NAME=="sdc%n"
In "/etc/rc.local" I added "/sbin/start_udev" and in "/etc/scsi_id.config" I added the line "vendor="NETAPP",model="LUN",options=-g"
[Code]...
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Apr 19, 2009
Having some troubles with NEC AD5170A device - it can`t read any dual layer disks. First layer reading is ok, but when drive switching to second layer it stops and don`t read any data from disk. Media - licensed DVD video disks. Same drive in windows read everything. I try to update firmware, but it doesn`t.
[Code]....
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Feb 25, 2010
I just replaced a DVD-RAM drive in one HP server running CentOS5 (2.6.18-164.11.1.el5PAE #1 SMP )
The drive is recognized by the OS:
# lshw -class disk
*-cdrom UNCLAIMED
description: SCSI CD-ROM
product: DVDRAM GSA-T50L
[Code].....
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Feb 21, 2011
We have CentOS on an HP proliant g5 server and attached to it is an DAS with 3 branches of disks so 5 - 5 - 5 drives.Now what we had so far there is that every branch was on raid 5 and totaling 3 mounted drives each with 4TB (disks are 1Tb each).But a couple days ago something happened while i was replacing older drives with some bad sectors with new one. What I did is to remove old drive, put in new one, initialize and attach to array and rebuild starts.Now somehow 2 drievs ( as i was rebuilding 2 arrays at once) switched place.so disk on 1_1_5 and disk on 1_3_5 switched place. There coul dbe possibility that I made mistake and assigned them to different arrays when initializing but that is really hardly as i replaced one then later another so...
Anyway to the to the point.Is there painless option to remove 1 disk from array and then assign it to other array and then let raid rebuild everything normally?I;ve made backup of everything there so there is no fear of loosing anything...By the way at the same time when that switch happens a partition from 1 raid array completely dis speared and there is only unallocated space on that one right now.
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Feb 25, 2010
I have servers which contain SATA disks and SAS disks. I was testing the speed of writing on these servers and I recognized that SAS 10.000 disks much more slowly than the SATA 7200. What do you think about this slowness? What are the reasons of this slowness?
I am giving the below rates (values) which I took from my test (from my comparisons between SAS 10.000 and SATA 7200);
dd if=/dev/zero of=bigfile.txt bs=1024 count=1000000 when this comment was run in SAS disk server, I took this output(10.000 rpm)
(a new server,2 CPU 8 core and 8 gb ram)
1000000+0 records in
1000000+0 records out
1024000000 bytes (1.0 GB) copied, 12.9662 s, 79.0 MB/s (I have not used this server yet) (hw raid1)
[Code].....
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May 21, 2009
I have built a CentOS machine just for playing around with and learning, however for the last few days I have had a couple of disk errors. So I want to replace it with another, and retain the data. I'm fairly new to Linux, but figured you could just image all partitions to another drive, so I tried this with Ghost 11. It imaged OK, but wouldn't boot - it went straight into Grub. What do I do here?
The original disk is just an 80gb IDE, the replacement disk is a 40gb IDE. I made sure it was in the same position on the IDE channel when attempting to boot from the new one (primary).I used Ghost to resize the partition down so that all partitions fitted onto the newer smaller disk.I didn't have much time to investigate further last night, so is it recoverable from the Grub prompt or have I gone about this the wrong way? Should I try using CloneZilla, or PING or should Ghost be able to cope?
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Feb 17, 2009
when I boot my pc with fedora 10, it displays the white cube, although i can rotate it but it does not seem to work i cant see any desktops. How can I switch back to the normal desktop view or disable compiz fusion ?
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Oct 1, 2014
I'm creating a new debian virtual machine. As virtual disks are free, I want to use tree for my new machine. The scheme will be like this:
sda -> /boot
sdb -> /root
sdc -> swap
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