how to move var which is on the 8MB ROM to Hard disk? I have following scenario:
1/ On IBM powerPC with 8MB ROM and 64MB RAM
2/ Entire Linux 2.6.9 OS with application the image size is 5.1MB
3/ The image get flashed in to ROM and creates var directory on ROM area
4/ Recent upgrade with Hard drive for 60GB gave more storage power
5/ Hence, moving var on to hard disk IS first priority, so var store larger size of data and log, following is snapshot of content on ROM
Code:
bin etc lib proc sbin sys var dev hdd mnt root share tmp var_init
My goal is ....
1/ Move var to hard disk with all its contents
2/ the IDE hard disk recognised by OS as hdd and mounted in ROM as directory
3/ Once var is moved on the hard disk then OS should look for all setting and data, log etc on hard drive based var directory hence kernel must look for all necessary files on hdd/var directory
4/ The original var could be remain on ROM but made empty and not to be used by OS.
5/ The entire OS on ROM area is READ only and cannot be deleted i.e. var directory hence only var contents moved to hdd/var directory.
6/ The file /etc/fstab is completely blank with zero size.
I have installed ubuntu on my 40 gb hard drive. I bought 160 gb hard drive and now i want to move ubuntu installation from 40 gb drive to 140 gb drive. How to ?
I have windows 7 installed in my internal laptop hard disk and I have installed Ubuntu 9.10 "the Karmic Koala - released in October 2009 and supported until April 2011", on my external hard disk. The problem I am facing is that the GRUB have been installed on the hard disk, for that reason if my laptop have restarted I need the hard disk to be attached to it to load the GRUB and to log in to windows. I need guidance in moving the GRUB to my internal hard disk or return the windows boot loader in charge, so I can boot my windows without the hard disk.
I want to install Cent OS5 on my machine. The Hard Disk is SATA. I want to discuss about how to custom partition the hard disk. In the old version there is a drop down list for manual partition the hard disk. like /,boot,swap,var etc etc. In the new version of centos 5 I can not see things like that. During installation process and in partition page there are things like:
Code: Remove all partitions on selected drives and create default layout. Remove Linux partitions on selected drives and create default layout. Use free space on selected drives and create default layout. Create custom layout.
When I choose custom layout it show me an error message. "An error has occurred-no invalid devices were found on which to create new files system. Please check your hardware for the cause of this problem."
I had a dual boot (windows 7 + debian), both of them installed in my internal hard disk, with the GRUB in it. I have recently installed a second linux distro (mint), but I put it in an external hard disk. Now the GRUB allows me to boot any of the three operating systems, but I need the external disk to do it. It seems that after the mint installation the GRUB is now working from the external disk (if the external disk is not connected, the machine does not boot.) �Is there a way to change the location of the GRUB, to the internal hard disk of my laptop?
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?
I have seen that is possible to boot from a USB stick and use a USB memory as hard drive.I have a server enable to hold 6 sata drives 3.5", But I want to use the 6 drives and make a Raid-5 setup for backups 5 -1 spare. /boot cannot be on a raid-5 level 0 or 1. But I want to have redundancy for my OS, them I can install Centos on a Raid-1 using 2 disk, which let me only 4 for the raid 5. I will run a backup I want to have a lot of space.
Using 4 disk for raid-5 2 TB I will have 6TB no spare, no spare is not a good option at least I will prefer 1 spare.Well, I was thinking, the server MoBo have USB support, if I open the box I can see the small entrances, If Centos let me installed on a USB memory drive, can I trust a USB memory stick?t night with bacula.
after installing Ubuntu on one WD 500 GB hard disk and after making mistake and pasting wrong code into Terminal:my OTHER WD 500 GB hard disk that was also in the system (I guess it was "hd1") - died.The problem must be, I guess, I typed wrong code: "hd1,1" instead of "hd0,0".)500 GB (NTFS) of data was on that other (non-Ubuntu) hard disk, and now I can not access it anymore. While booting, system gives "Hard Disk Error" warning and stops.One again: I installed Ubuntu od one hard disk and at the end of instalation I pasted wrong code for GRUB, giving address of another hard disk. Now that other hard disk has error and will not work
My parents bought a new hard drive for a laptop that I've owned for several years. It's much larger than the current one, so I plan on splitting it up to dual boot it with Ubuntu.I have no problem with partitioning a drive (I always keep a LiveCD handy), but my question is this: how can I go about moving the existing partition to the new drive? This is a laptop, so I can't simply plug the new drive into another slot.
Also, even if I manage to move it, will Windows still work on the new drive in a larger partition? I've had this laptop for quite a while, and I've lost the recovery discs that came with it a long time ago. I also have a lot of software without CDs to reinstall them with. This makes not reinstalling Windows a high priority.
I have a sata 320 gb with mandriva linux 2009.1 on it.And it is what curently atached to my cpu. It is shown as 'sda' in the partition table.I also have another 40gb hard disk with windows xp installed on it.It is shown as 'hda' in the partition table . Now what i want to do is attach this 40gb hard disk to my pc and configure grub on my 320gb hard disk('sda') so as to boot windows xp(which is residing on the second hard disk,'hda')Can anyone tell me if what im doing is feasible or not? If it is feasible,can anyone suggest me how to get it working. I know i just need to add 2-3 lines to my grub.conf, but dont know what exactly i need to write.
i have Cent OS 5.2 CD (6) with me. I need to install it in my hard disk. I have already installed Windows XP in C: partition. I need to install Cent OS in D: partition. During installation process its asking for hard disk partition. In this regard, how to select the partition. I have C,D,E and F partitions and C,E and F are in common use. So i have to install Cent OS in D partition.
Especially /var because I am running a MYSQL server on this box. I want to know if there is a safe procedure to follow to move these partitions from the current sda2 and sda3 that they are now to sdb2 and sbd3 because this is a much bigger disk. I don't want to break MYSQL and I don't want to be down for a long period. I have heard of some people suggesting a sym link to a /newvar and /newuser on sdb but I have also read this will not work when moving to a different physical drive.
Can some one tell me how many space does a plan CentOS 5.4 take and the minium size of the memory. Also, what is the minium size I have to partition on /boot
I need to install a voice recording application on a server.My problem is that I have four hard disks with 150 GB storage space each. So I have 150*4 = 600 GB Storage available as whole .I need all four hard drives (600 GB ) as single volume to store and retrieve recording .
I just invested nearly 12 hours configuring a CCTV system using CentOS 5.5 Server and Zoneminder. I have it setup just the way I want it. I would like to make a clone image of the drive just in case disaster strikes (lightning strike, failed hard disk, etc). In the Windows PC world, I use a program called Ghost to make a mirror image of a hard disk. I power the computer down, run Ghost to make a block level clone of the drive, then power it back up. Can I assume that will work with CentOS without problem?
In the computer now is a 320GB SATA drive. One partition on it is swap, and the other is ext3. There is no raid setup on the drive. I have an identical 320GB drive I could use and keep it in the computer unplugged from the power and not spinning. That way if anything ever happens, I can power down, move the power and data cable to the new drive and power it back up. Granted, I will lose any new config and database changes, but it will be a lot better than starting back at square 1 and reconfiguring the entire OS and software.
I was using Terminal and browsing a directory in my home folder. My "home" directory is located on "/dev/sdb1". When in Terminal I typed "ls" in one of my directories and the output was garbage. The output didn't show the files in the directory. I think it said something like, "input/output error". Unfortunately, I didn't write the exact error down. Instead I rebooted.The hard disk with the problem is:
Code: $ sudo hdparm -I /dev/sdb [sudo] password for brian:
The performance of my suse install under Virtual Box is starting to affect my work, and I really need access to my real multi core CPUs - can I take my vm and stick it on a bootable SD or external HD?I've read the howto move existing linux installation to usb-flash and make it bootable? but it didn't work for me (I'm not convinced I copied correctly).
A while back I decided to use CentOS as my main day to day operating system :) Previously I was mainly using Fedora (old Red Hat <9.x) and occasionally Debian / Debian based distros.Since I am running CentOS on a Dell M1530 laptop I am concerned by the Load Cycle issue that plagues many laptop hard disks due to aggressive default power management. For those of you who are not aware of the Load Cycle issue please refer to the following link from Ubuntu forums which documents it really well:URL...
In Fedora and various other distros I have successfully used Laptop Mode Tools URL... to help set the hard disk APM value meaning the hard disk would stop rapidly increasing the Load Cycle value when running on mains. The setting I choose to use was hdparm -B 254 /dev/sda when the laptop is running off of mains power and set in scripts supplied with the Laptop Mode Tools RPM which will run as a service.
The problem I am having with CentOS is I can't get Laptop Mode Tools to run as a service either from the RPMForge repo (old version) or by installing the latest Fedora version from Laptop Mode Tools site above. I am therefore having to manually set hdparm -B 254 /dev/sda when running which I occasionally forget An error is seen during boot but which changes the CentOS boot to verbose mode but I am unable to locate the error in any of the /var/log files so I can put it in here.Can anyone suggest a way of creating a script suitable for CentOS which will auto apply the above (or other) power saving value for when a laptop is running off of mains power?If anyone can also advise how I can confirm what the error is I can also forward it to the author of Laptop Mode Tools.
I have a server with two hard disks SATA (500 GB), I installed centos in one of them, desire to know how I can mount the other hard disk empty and without format, so that this hard disk always appears mounted when "reboot" the system.
server is :intel 5000p ,2gX4 ram ,cpu 5405 X13 sata sda 500g sata use for system rootfilesystem primate mastersdb 500g sata use for data filesystem second mastersdc 500g sata use for data filesystem second slavebios set use enhance and ide i install centos5.4 x86_64 on sda when i install system on sda, sdb and sdc is offline.after system install sucess ,poweroff and add sdb and sdc when system kernel start report ata0 error or ata1 error. exp XXXX (rydy).but when only add sdb or sdc ,system can startup and use all service ,exp vncserver ,kvm,pptp..
I am trying to port the current Fedora4 system to the CentOS5 on a new hard disk. Actually, the Fedora4 system is constantly being hacked due to my lazy update. So i prefer a fresh install of CentOS5. I am not clear what files need copy and what does not need for ease and for avoiding possible backdoors.
This is Mushtaq here. I am using CentOS 5.3. Everything works fine regarding Hardware Support except of External Hard Disk. I have a HDD Western Digital 80 GB in USB converted case. Its working fine under WinOS, Fedora 10 / 11 / 12 + & RedHat Enterprise Linux. But CentOS is unable to access it even it does not detect it (fdisk -l command is used to verify the connected disks). Can any one please help me in this regard, I am fed-up of this situation.
This is the equivilent of a DJ going into the"dusty records bin"to play an old song.I've got a hard drive that's left over from a Mandriva Spring 2008 computer and I need to copy the photos off it to a DVD and move them to a computer running Ubuntu.I can't seem to get the Ubuntu computer to access what's on the Mandriva drive, so I've loaded Mandriva Spring 2008 on another computer.
I've accessed the photos I need easily enough, but can't copy them to a storage medium so I can move them to the other computer. I've tried two USB devices, an external DVD drive and a flash drive and can't just copy (or drag 'n drop) the files to the other devices.This evening I may try a portable hard drive, again with a USB connection, and see if that works.
If there's a fool-proof way to do this by using a terminal, I'll try that. I haven't been able to devote enough time to Linux to familiarize myself with terminal commands. Or, if there's a program that will run under Mandriva Spring 2008 that will let me accomplish the transfer, I'll try that as well.
We have had a hardisk crash in our RAID1 webhosting server running CentOS5 and Plesk. We first realized something was wrong when our main site didn't load but showed MySQL errors. We then found out that the system was in read-only state. Something that also happened the day before yesterday, but we could fix with a FSCK. Then the system worked well til around 18 hours later when it crashed with the same sympoms. So, we rebooted the server and wanted to do a filesystem check again. But the HDD wouldnt even load. It was gone. Unfortunatelly it was not realized that the second disk in the system was also not working any more for some time now. Fortunatelly we had our main site backed up externally though. So we could re-install a fresh box and mounted the two drives to the system. We checked the harddisk. One is practically empty (the older one), the other has almost only files in 'lost + found' but these are all "numbered", no real filenames or so.
