CentOS 5 :: Redistribute A Disk Without Loss Of Data Namely It Is Necessary To Make / Boot And Two Equivalent On Disk Volume?

Aug 24, 2009

There is a disk 500 gb, it is broken on /boot and on /root and on /dev/sda1 and /dev/sda2. Whether prompt it is possible to redistribute a disk without loss of data namely it is necessary to make/boot and two equivalent on disk volume.

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Fedora :: 13 Windows 7 Dualboot And Hard Disk - Complete Loss Of All My Data

Oct 11, 2010

Last time I installed Ubuntu in a dualboot configuration with Win7 on one of my machines, my entire boot sector and Windows install got corrupted, resulting in a complete loss of all my data and requiring a fresh install of Windows.

I looked into this a bit after the fact, and it seemed to me it was due to conflicting hard disk geometry between Linux and Windows.

My question is, how likely is this to happen with Fedora? Is this because of Ubuntu? A bad install? Is there someway I can avoid this from happening when I install Fedora if it will happen?

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CentOS 5 Server :: Mount Disk In Single Volume?

Jun 24, 2009

I dont know if this is possible or not but here what I would like to do. I have 6 linux server and each has 100GB disk space. All of these 6 box are compute nodes and space are not used really. However, If I can combine 6 servershard disk that will in total 6*100GB gives you quite a bigger space. Is there any tool or ways to mount these drive in one volume instead of mounting individually ?

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CentOS 5 Hardware :: Map Four Hard Disk As Single Volume?

Jul 1, 2010

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 .

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CentOS 5 Hardware :: LVM Logical Volume Not Seeing 1 Disk After Yum Update / Fix It?

Jun 1, 2011

I ran yum update on my centos 5.6 box a couple of days ago and following this the system would not reboot, dont recall the exact error and don't seem to be able to find it logged anywhere but it was something to do with LVM not being able to find a disk.

In the end I have booted to linux rescue and edited my /etc/fstab file so the system does not try to mount the offending volume group. This enables the system to boot but I need to find out what is wrong with the system and get this volume group accessible again. Here is my edited fstab showing the commented out line. code...

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CentOS 5 :: Df Not Showing Disk Space After Logical Volume Expansion / Fix It?

Jun 5, 2009

I've added a new LUN to my Centos 5.2 server using Powerpath and have added it to an ext3 logical volume. I extended the logical volume using lvextend and the new space shows up correctly in lvdisplay. What I'm having problems with is getting Centos to see the new disk space (df -h shows 500GB, not 600GB as expected). I've tried running a resize2fs on the new volume but it tells me that "the filesystem is already n blocks long. Nothing to do". Does any one know where I'm going wrong? If possible I'd like to sort this without a reboot.

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General :: CentOS 5.4 - LVM Data Copy To Different Disk

Jan 26, 2010

I've got a CentOS 5.4 box and the following disks connected:
# parted /dev/sda print
Model: ATA WDC WD1600BEKT-0 (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 32.3kB 107MB 107MB primary ext3 boot
2 107MB 160GB 160GB primary lvm

# parted /dev/sdb print
Model: ATA WDC WD1200BEVT-0 (scsi)
Disk /dev/sdb: 120GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 32.3kB 107MB 107MB primary ext3 boot
2 107MB 120GB 120GB primary ext3 lvm
the OS, data and programs are on /dev/sda.

I'd like to copy the full directories and files to the newly added /dev/sdb wich has, as you can see, less space. Also note that /dev/sda has only about 3.6Gigs uses, so it will no doubt easily go into /dev/sdb. How can I do the full copy, and yet make /dev/sdb bootable just like /dev/sda (just as if it was cloned by Ghost)? I've checked dd, but AFAIK, it needs that both source and target devices be the same in size.

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CentOS 5 Hardware :: Hard Disk Crash / Data Recovery In RAID1 Webhosting Server

Feb 1, 2011

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.

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Fedora :: What Is Process To Make Disk Boot-able?

May 5, 2010

im looking to boot a PC104+ from a linux floppy...

a) what version should i use that would fit and boot on a floppy?

b) is there any place i can still easily find that version?

c) what is the process (if any) to make the disk bootable (like msdos boot format)

d) can this boot floppy then be installed on a local drive?

i know that seems like a lot but they all kind of go hand in hand from my experience using DOS in such a way. im still out there searching but kudos to anyone who can help.

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CentOS 5 :: Generate An ISO And Burn Into A DVD To Make A New Copy Of 5.4 Installation Disk?

May 19, 2010

Previously I have Centos 5.3 installed. Eventually I upgraded the systems to Centos 5.4 Now is it possible to generate an ISO and burn into a DVD to make a new copy of Centos 5.4 installation disk? This is far better than downloading.

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CentOS 5 Server :: Make A Disk Image Of An Active Partition?

Jul 13, 2010

Is there any way to make a disk image of an active partition? I have to get a complete backup (partitions, MBR, all data files) of my server without bringing it down to do it. I want to have a backup that, in the event of a system failure of any sort, I can quickly restore onto a new, bare hard disk and have the system back up and running. The windows equivalent of this would be something like Drive Image XML, this is the functionality I am looking for.

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Hardware :: Fedora 11 RAID 1 - Disk Failure - Boot From The Single Working Disk?

Oct 16, 2009

my Fedora 11 system is not starting anylonger. It stops with the message:


VFS: Can't find ext4 filesystem on dev dm-0

The system told me since a while, that a lot of the sectors of one disk of the (software) RAID compound are failed already. So tried to disconnect each of the disks and start them separately. Unfortunaltly this is not working (for one its is not working at all, the other wents the same far as with both), when I tried to recover the system with the Fedora DVD, it said no distribution found. I am quite new and do not know so much about linux system, so i do not know what further information you could need. Maybe it can be important, that both disks are encryped (the system wents so far, that I can type in the password).

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General :: Disk Encryption - Bitlocker Equivalent?

Jan 25, 2011

Bitlocker is a harddrive encryption data protection tool which comes with Windows Vista Ultimate and 7. Does anyone know an equivalent for Linux distros like Fedora and Ubuntu?

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Debian Installation :: No Boot Disk Has Been Detected Or Disk Has Failed

Nov 3, 2015

I installed Debian on my PC with a Acer Stock motherboard (xc600) with amd64 and after the installation finished it told me to remove my installation media and reboot. After reboot I was returned this message ' ERROR: No boot disk has been detected or the disk has failed.'. I have verified with gparted using mint live OS that I have Debian installed on my system.

I got believes that this may have be caused by a broken grub or I need to configure something I don't know how in BIOS.

I will update the topic later..

My installation media was a USB 2.0 flashdrive with a Debian 8.2 Jessie Installer and 9 different Linux distros. I have installed Debian multiple times before on my laptop and never had this problem so I know how to go through the installation process and set the partitions.

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Ubuntu Installation :: Unplug Disk, Can't Boot Winxp Disk?

Aug 22, 2010

WinXp sp3 is on disk sdb, then installed Ubuntu 10.04 on sda, can go into diff OS without any problem. I am going to move sda to another machine, when I unplug sda, WinXp can't start to boot on sdb. How to fix it?below is my case output$ sudo fdisk -l

Disk /dev/sda: 160.0 GB
Device Boot Start End Blocks Id System


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Ubuntu / Apple :: 9.10 Powerpc Make Boot Disk?

Apr 24, 2010

I have OS9 and a PC with Win7. what is the best tool to burn the CD in Windows or OS9? I used Transmac on the PC but the G4 Cube won't boot from the disk though it reads it in OS9.

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Ubuntu :: Files On A Shared Ntfs Data Disk On A Dual Boot System - Disappear ?

Jun 20, 2011

When i work in Ubuntu on a dual boot system with a shared NTFS data-partition where Windows is hibernated, and then reboot and continue working in Windows from the hibernated sesion, strange things happen. Files disappear, files that i worked on suddenly have the content of another file.

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General :: Old Pc: Make A Bootable Single Floppy Disk To Boot With The Pendrive?

Sep 1, 2009

Nothing is working,[URL] My bootable pendrive is not seen by grub. The tab in grub, e, gives my 3 partitions only


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CentOS 5 :: Trying To Boot From Disk With New ISO

Oct 25, 2009

I'm trying to create several Centos virtual machines to run Cpanel servers on each. Centos 5 looks good due to bundled Xen. Not sure whether to go for 64 bit version of Centos 5 and run some of the Apps as 32 bit and a few as 64. The h/w is a Dell poweredge R710 with dual 2.26 GHz quad core Xeon procs, 5.86 GT/s 24GB ram memory speed 1067 MHz. Raid with perc 6/i.

I burned the Centos 5 iso onto cd-rw but my lap top and the new dell won't boot from it. I viewed the readme file which seems to suggest burning "boot.iso" on its own but that doesn't work either. A boot menu on the Dell has an option to "Deploy" an O/S. Do I need that or can't I simply boot from cd-rw? I used Nero to burn the cds. I asked Nero if any special box needs to be ticked to write a bootable image and they said no.

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Debian :: Run Check Disk From A Boot Disk

Oct 11, 2010

I'm very new to linux and running debian 4.0. On boot got an error:

I did a ghost image of drive before I do any more damage and when performing the ghost, ghost stated I need to run fsck. I created the image and noticed that a lot of folders were missing (bin, boot and others).

1. How do I run check disk from an boot disk?
2. Is there something else I should consider?

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Ubuntu :: Tried Playing DVD In Movie Player / It Froze Up / Huge Loss In Free Disk Space

Feb 28, 2010

I tried playing a DVD several times and each time, after opening in Movie Player on Ubuntu 9.10, it froze up, I forced quit and then I noticed a huge reduction in free disk space on my root (/) directory. Has this happened to anyone else?I figure I Movie Player probably saved some temp files somewhere on hard disk and wasn't able to clean them up since I had to force quit. Any thoughts about how to clean this up and take back that previously free space?

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CentOS 5 :: Boot Partition Is On A Disk Using The GPT Partitioning Scheme But Machines Cannot Boot Using GPT?

Jun 27, 2011

I meet a problem about "Your boot partition is on a disk using the GPT partitioning Scheme but this machines cannot boot using GPT." in installation. Does GRUB-0.97 on CentOS 5.4 support GPT?

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CentOS 5 :: Using USB Flash Stick As Boot Disk

Mar 20, 2011

I would like to use a USB flash drive as a boot disk. I have 2 hard drives. I will have Windows 7 as Drive 1 and Linux as Drive 2.I would like to not touch Drive 1 at all NO grub or other boot-loader. My old system I used a floppy drive as a boot disk.This worked if floppy was inserted: It booted grub giving me the choice of Windows(drive 1)or Linux(drive 2). I would like to replace the floppy with a USB stick. I have a couple of 64 MB (LOL) flash drives to use.

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CentOS 5 :: Duplicate Disk, Boot On Completely Different Hardware

Jan 22, 2011

Is it possible to duplicate a disk, then boot on a completely different machine? If so, how would you do such a thing?

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CentOS 5 Hardware :: Logical Drives Disable Due To Data Loss Error Message

May 25, 2010

We have made a fresh installation on DL 580 G 5 Server. The installation Completes successfully. When we reboot the server we find an error message " Logical Drive Disable due to Possible Data Loss. and then non system disk or disk error.

Due to this we have lost all of the data. We can successfully install Windows Server 2008 or 2003 or Redhat Enterprise Linux 5 on this server with no error no issue.we can successfully install Windows Server 2008, 2003 or RedHat Enterprise on RAID 5 or RAID 6 Or RAID 1 or RAID 1+0. we dont face any issue on these windows or linux platforms.We are only facing RAID Controller Issue on CentOS 5

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Ubuntu Installation :: Disk Error On /boot With Dual Boot On Dual Disk

Dec 30, 2010

I have a (slightly complicated) dual/multi boot system.

I keep getting boot errors (when choosing ubuntu from the grub2 menu)

Serious errors were found while checking the disk drive for /boot

If I switch off and restart, ubuntu will then start without issue.

My setup is like this ....3 disks, one with 10.10 clean install - so Grub2, separate partitions for /, /boot and /home, one with windows 7, one with windows XP and 10.04 wubi (this is my old disk which I will trash once I'm happy with my upgrade to 10.10 & 7 on separate disks.

I installed 7 and 10.10 with ONLY their disks installed. After both were working, I added all disks and rejigged the grub2 menu (using update-grub and StartUp-Manager).

This problem only seems to occur if my previous boot was not 10.10 ( I will investigate this further). It's as if something (grub2 ?, the bios ?) is remembering part of the previous boot and not using the grub2 menu completely.

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Server :: Chedule Check Disk At Boot Time In CentOS 5.3 And OpenSUSE 11.1?

Feb 24, 2010

How to schedule check disk at boot time in CentOS 5.3 and OpenSUSE 11.1?

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Hardware :: Adding Second Hard Disk With Windows To Boot With Grub On First Hard Disk

Jul 7, 2009

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.

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Server :: Copy Of IBM Server Hard Disk Data To Another USB External Hard Disk?

Sep 1, 2009

Copy of IBM Server hard disk data to Another USB External Hard disk?

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Debian :: Sync Equivalent Or Other Options When Loss Of Power?

Jan 24, 2011

I'm wondering what my alternatives are when I lose power to the external hard drive where I have Debian installed. I realize that the best answer may be a battery backup UPS for the external hard drive. It seems that I recall that when a similar scenario happened on my SunOS Sparc workstation, I would simply hit [Stop-A] and then type in the "sync" command. I now have a laptop and am running Debian off of an external harddrive that has its own power supply. When I lose power, my laptop obviously continues to keep running but my session is essentially and understandably hosed because the main filesystem is not accessible. Gnome desktop goes away and I am thrown to the main console login. When power resumes, I cannot login to attempt a remount or anything. When I hit [ctrl-alt-del] thinking that that is less forceful than just holding down the main power on the laptop, I get cannot execute "/sbin/shutdown". Is there a [STOP-A] sync equilavent or some way or keyboard sequence to get to GRUB to issue a reboot command?

[108200.233484] EXT3-fs error (device sdb1); ext3_find_entry: reading directory #55500801 offset 0
INIT: cannot execute /sbin/getty"
INIT: ld "1" respawning too fast: disabled for 5 minutes
INIT: cannopt execute "/sbin/shutdown"

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