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.
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.
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?
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.
my Fedora 11 system is not starting anylonger. It stops with the message:
Code:
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).
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.
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
I have a (slightly complicated) dual/multi boot system.
I keep getting boot errors (when choosing ubuntu from the grub2 menu)
Code: 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.
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?
I am trying to install CentOS 5.2, and the installation ran out of disk space after running for about 2 hours.I checked the FAQ, and it said 1.2 GB. The disk is 3 GB. The default install was selected, and I think that it checks for sufficient available disk space before installing. Still, it ran for quite a while before announcing that it was out of disk space.The Installation Guide is not very helpful, since there is a blank page where the disk space requirement is supposed to be. I just picked the default installation. A search of the forums on "not enough disk space" did not return much.
I am having new hardware and IDE driver for that hardware as drive disk image (it8213_centos53.img). CentOS 5.3 installation is working fine with drive disk image at USB and CentOS 5.3 at DVD. Our application uses CentOS 5.3 and we build a custom kick-start ISO for installations. Using that ISO client is going to install on all hardware boxes.
Note while installing : a) No network connection is avalible. b) No USB isavalible. c) No floppy is avalible. d) Only single CD-ROM is avalible.
So, is it possible to build single custom kick-start CentOS 5.3 ISO which contains dirve disk image and entire installation will be done using that image. If so please let me know the steps to build it.
I'm looking for a simple solution to backup my CentOS Server (5.x) on a daily base to a mounted disk. I found the glastree tool but I have no clue if it will work on CentOS.All recommendations, tipps, hints and maybe scripts are welcome. Unfortunatelly I'm an Linux newbie and starting with Linux CentOS a couple of weeks ago
I need to read information from SUN hard disks which are about a decade old. My CentOS 5.6 mount command comes from util-linux 2.13-pre7."mount -t ufs -o ufstype=sun /dev/sdb2 /New" reports "mount: unknown filesystem type 'ufs'", though its man page describes such settings.How could I read an external UltraSCSI hard disk (yes: high pitch noise and only 9 GB capacity) on a current CentOS? Is that possible at all?
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.
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 had a a problem booting last night when my laptop battery came loose and caused a crash during boot.It ceased loading a daemon and I turned it off with the power switch, then I received the boot error,then i checked the linuxdrives directory and it was corrupt,I then, out of ignorance, ran wubi from within windows XP and said unistall believing that it would reinstall and fix itself.Thus you can see my green behaviour.I have been searching the threads and have tried many things but have had no success, I will suffer a great loss if I lose that load of Ubuntu as I have allot of work stored there, and in my Thunderbird accounts.
Added an SSD (dev/sdc) and decided to move some less often changed directories there. Started with /usr and /boot, leaving / on a primary in the first drive, for now. All started ok, and my changed fstab mounted the right ones, and the system works.
However, grub is actually using the original /boot on / on sda1. I cannot see any way to change this. (Which makes it sorta hard to update the kernel
From grub:
Okay, since it has two choices, I tried to tell it which one to use. But, grub> root (hd2,5) does nothing.
Disk /dev/sda:
what I seem to recall, grub doesn't care about the boot flag on the disk. Nor does it care about primary vs. logical (except GNU doc says "makeactive" only works on a primary?).
The GNU doc also indicates that it looks for a directory /boot on the partition, so if you're mounting a partition as /boot, it also needs to contain a /boot directory under it. Tried that, but no change.
Is my problem the logical partition? Does that prevent "grub> root" from changing it? I'm afraid to wipe out the old /boot and find that I can't start up.
Well today I decided that I couldn't wait for the offical release of 10.04 LTS, so I upgraded from 9.10 to 10.04 LTS Beta 2. After realizing that many problems had come with that update, I decided to just format my Ubuntu partition and reinstall it. Somehow my GRUB stopped working from when I formatted Ubuntu, so I whipped out the old Toshiba recovery disk for Windows Vista 32bit. After many attempts to have the recovery portion of the disk fix all of my problems and seeing no results, I decided that reinstalling Ubuntu (and GRUB) might make everything all better. Well it didn't. Grub shows my Windows partition but fails to boot it. After selecting it, it goes to a blank screen and stops responding. And to add to all of my problems, my BIOS has changed slightly. It no longer shows/or responds to F2 or F12 when I tried to give another try at that Toshiba recovery disk. That kinda sucks since I can't choose what to boot. Please help me!! I really don't want to have to format my entire hard drive and try to install Windows Vista again (Not that Vista is anything anyone should love) I have many expensive programs that can only be activated a certain amount of times. I don't even think that I could reinstall Vista since my BIOS won't let me boot the CD/DVD drive.
Today I installed Fedora (I need it for school), but not everything seems to work fine Before installing Fedora on my Macbook I had a triple booting machine: Mac OSX snow leopard, Windows 7 and Ubuntu. (using rEFIt) All of them where working. Since I installed Fedora on the 4th partition I can only boot Mac OSX. When selecting one of the other OS's it says: "no bootable device insert boot disk and press any key"
I downloaded the Fedora live dvd iso file, burned it to a dvd. I was wondering if I forgot to do something or did I do something wrong. When I try to install from the dvd I get this error message, isoLinux: Disk error 80 , AX = 42A7 , drive 9F Boot Failed: press key to retry When I press a key to retry I get the same error. I also tried to install virtual pc and get not boot disk found.
There was a necessity of creation cluster file system on a basis gfs.Prompt how better to mark a disk 500 gb. Means how many better to allocate /root, LVM and so on.Or throw the reference on sensible manual.
I have two servers to upgrade to 5.4 from 5.3. I have the DVD of 5.4 for both of them. Is there a way I can tell yum to use my DVD instead of the network to do the upgrade?
What I'm doing is attempting to create a minimalized CentOS which only installs the base components.
I decided that I'd install everything I need, then I did a ..
rpm -qa > installed-packages
I think used this new file to move all the RPMs that were used during the installation from ~/CentOS/disk/CentOS/ to ~/CentOS/graveyard
[root@localhost CentOS]# cat installed-rpms-no-vers | while read file; do mv disk/CentOS/${file}* ~/CentOS/graveyard/ ;done mv: cannot stat `disk/CentOS/iptables-ipv6*': No such file or directory mv: cannot stat `disk/CentOS/nss-tools*': No such file or directory
We have a centos 5 instance running as a virtual machine on vsphere 4.0, which has a number of virtual disks presented to it. We need to remove these virtual disks from the system without rebooting it, but have had no luck searching VMware's KB or the internet for solutions to the issue. It seems we can strip the disk of all it's partition information, then remove it from the system in VMware, but /var/log/messages still reports scsi errors when running fdisk against the said disk. There is also a folder with the deleted disk's name (e.g. /sys/block/sdp), after the disk has been removed and the host bus has been rescanned. Is it even possible to completely remove disks from linux without a reboot?
I am very new to centos and just setting up my disk. I have a dell 1850 with 2 69GB disks. When I get to this screen ( shown below) the disc configuration shows two discs "SDA2" and "69774MB". What I am wondering is this confuration ok. I assume the SDA2 is my secondary disk? Why is it using the secondardy disc and not the primary SDA1?
