CentOS 5 :: Can External Sun UltraSCSI Ufs Disk Be Mounted On CentOS
Jun 26, 2011
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?
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Aug 6, 2010
Is there a way to disable disk checks in a mounted usb drive? I have a 500GB usb mounted drive in my CentOS machine and everytime I reboot my system, it does disk checks which is a long painstaking process.
/mnt/sdb1
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May 31, 2010
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.
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Feb 18, 2010
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.
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Nov 10, 2009
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.
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Oct 6, 2010
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
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Apr 20, 2010
I have a server with 10 disks 1TB with RAID 5, and I want to install CentOS 5.4 on this disk, but fail
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Sep 1, 2010
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.
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Aug 10, 2010
I went through some conf files under /etc. But cannot find out why cdrom always mounted under /media? Also there is one line in /etc/auto.misc:
cd -fstype=iso9660,ro,nosuid,nodev :/dev/cdrom
Does that mean the cdrom should be mounted under /misc/cd?
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Mar 1, 2009
I went through some conf files under /etc. But cannot find out why cdrom always mounted under /media? Also there is one line in /etc/auto.misc: cd -fstype=iso9660,ro,nosuid,nodev :/dev/cdrom
Does that mean the cdrom should be mounted under /misc/cd?
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Nov 15, 2010
I have an iSCSI device that is large, ~17TB usable, and I've created an XFS file system at the device level. I mount the device no problem and am able to touch and remove files without issue. I start my application and within about 5-10 minutes I start seeing the following entries appear in /var/log/messages
[Code]...
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Nov 4, 2009
I've been working at creating a highly available set of host servers for a linux diskless boot cluster.Each host machine is fitted with redundant power supplies and two 1TB drives in a Raid-1 configuration.When I first started this project they each had twin 160GB drives. In my original setup I had both nodes acting as primary systems so that I could mount /dev/drbd0 to my /data directory and see changes immediately.It had worked in the past where I could make a file in /data on the first machine and it would show up in the /data directory on the second machine. One day this had stopped working where if I made a file on the first machine it would display on the second one until I unmounted /data and remounted it to the /dev/drbd0 disk.
This is when I bought the new disks and decided to start from scratch. The weird thing is that if I make a file on the primary and remount on the secondary to see it and then delete it from the secondary and THEN delete it on the primary, the primary throws no error however it goes into read-only mode because it knows that file was already gone.Below is my configuration file, sda8 is an 820GB partition which is used for all of the data I want to replicate, currently populated with ~10GB of data. Sda7 is my metadisk partition which is 500MB large clearly more than needed by drbd.Also you will notice "incon-degr-cmd "halt -f";" is commented out. This is because when I go to actually use it drbd throws an error when reloading the configuration and I'm not sure why that is either
resource r0 {
protocol C;
#incon-degr-cmd "halt -f";
[code]....
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Jan 15, 2010
I'm wondering if there is a way to shrink an ext3 LV mount as / .I tried to with resize2fs ... but seems that isn't possible if the partition is mounted.
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Apr 15, 2009
I'm having trouble with an NFS mounted directory on a newly installed 5.3 server.
The directory mounts fine using this command:
However I cannot write to the directory despite it being mounted RW and having read-write access on the host (a Netapp Filer). If I check permissions on the mounted directory, I see it is owned by 'avahi-autoipd':
I have disabled the avahi-daemon in chkconfig, although it wasn't running to begin with. Any idea why this directory would be owned by avahi-autoipd and whether or not that has anything to do with why I can't write to the mounted directory?
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Mar 18, 2011
Like in subject when i run gfs2_gettune it returns:
gfs2_tool gettune /mnt/SambaShare/
gfs2_tool: gfs2 Filesystem /mnt/SambaShare/ is not mounted.
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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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Jul 16, 2009
I'm having a problem accessing files via nfs where an iso has been mounted through the loop device on the nfs server. Basically what I am attempting to do is access the 6 CentOS 5.2 ISO's via NFS from one of my client machines. The client is able to mount the share and see its sub directories leading up to the mount point of the ISO, but the contents of the mounted ISO image are simply not visible (on the client, they are visible on the server).
Server config (CentOS 5):
/etc/fstab:
/home/user/iso/CentOS-5.2-x86_64-bin-1of7.iso /exportiso/centos/x64/5.2/disc1 iso9660 defaults,loop 0 0
[code].....
NFS is working correctly for other mounts between these two boxes, however.
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Aug 10, 2010
I recently installed Cent-Os on a server and changed the default partitioning to have 2 partitions - 1 main area for everything and a swap partition of 8Gb After installation I cant see the swap as a separate partition although there is a 16GB tempfs mounted as /dev/shm Is this right ?
fdisk -l shows :-
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 13 104391 83 Linux
/dev/cciss/c0d0p2 14 17844 143227507+ 8e Linux LVM
(first partition being non-lvm boot)
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Mar 21, 2009
I have been trying to find a solution for my problem but I can't find it.
Does anyone know how I can add my external HD (USB 400GB) to the "updatedb" so I can find files in my hard drive? code...
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Feb 1, 2010
Since some days ago, my external usb BenQ DVD R/W become unrecognizable by CentOS. It was recognized before.
During those days, I updated software packages, and later reinstall the whole system. I cannot remember the time point that the problem began to happen. Yestoday, my kernel version was still 2.6.18-164.10.1.el5, when I enter single user mode through Quote:(exit gnome) $ init 1
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Oct 28, 2010
I am running Centos 5.5 on a IBM Think Centre. I am using it for File sharing Samba and one moment it would be working find then the external 1TB HDD would lockup and I would have to reformat it in order for it to work. I don't really have and other information but that is basicallly what happen even if i manually go to the Centos server it would not allow and thing to be created.
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Sep 8, 2011
I have 10 dell 980s with centos 5.5 final on a closed network (I can't connect them to the internet).The internal speaker works but anything plugged into the front or back jack doesn't work.
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Dec 5, 2010
Installed CentOS 5.5 some time ago and I can proudly say I am more than satisfied with it. Managed to install codecs, flash player, media players, chrome and opera browsers and all other things I need. My only problem is that as of about a week ago my external DVD player is not recognized any more by CentOS so I am unable to watch movies. My external DVD player is Magnavox and it works great but CentOS does not recognize it any more. I used to watch movies in CentOS in SMPlayer all the time. What to do to get it back?
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Dec 6, 2010
I have a secondary IP (external/Internet, not LAN) for a CentOS box, what do I need to do to make the server bind to that IP as well as it's primary one?
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Oct 5, 2009
I recently installed CentOS 5.3 (from DVD media) on a Seagate 320GB external USB drive; this drive is connected to an Intel-based desktop computer (Intel D945GNT motherboard) with two internal SATA drives (both NTFS, as I'm running Windows XP SP3 as my primary OS). The install found the USB drive fine, and I manually configured my partitions; I had the install place the boot loader in the first sector of the boot partition of the external USB drive. I had set my BIOS to boot from the USB drive first; after a reboot, nothing happened...no GRUB menu, nada.
After some research, I had found an article discussing the need to rebuild the initrd for USB drive support. So, I booted the computer from the CentOS DVD, then went into 'linux rescue' mode; once I was at a command prompt, I navigated to the /boot directory and executed the following command:
mkinitrd --with-usb --preload=ehci-hcd --preload=usb-storage --preload=scsi_mod --preload=sd_mod ./usbinitrd-2.6.18-128.el5 2.6.18-128.el5
After the new "usbinitrd" was created, I edited grub.conf to reflect the new image, then attempted the reboot again from the USB drive. Still no GRUB menu.
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Jan 20, 2010
i have two centos systems one automounts the external usb hard drive and other doesn't what do you think could be missing in the system that is not automounting the external usb drive.
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Jun 7, 2010
I have a CentOS system totally devoted to a 500GB disk. I have an additional disk mounted via an external device that will not execute scripts that are located on that device.
Current hardware configuration:
Quote:
t [root@localhost ~]# fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 60801 488279610 8e Linux LVM
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 * 1 42261 339457466+ 83 Linux
/dev/sdd2 42261 60801 148925985+ 5 Extended
/dev/sdd5 59372 60801 11486443+ 82 Linux swap / Solaris
/dev/sdd6 42261 58671 131814400 83 Linux
/dev/sdd7 58671 59371 5623808 82 Linux swap / Solaris
Partition table entries are not in disk order
[root@localhost ~]# uname -a
Linux localhost 2.6.18-194.3.1.el5 #1 SMP Thu May 13 13:08:30 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost ~]#
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Oct 25, 2010
I have an external DVD burner hooked up to an EEE PC 701SD. The disk has worked on a dell desktop computer, and a 701 (the first eee pc which I built the install on) without a problem, however when I boot up the install disk on the 701SD, I get a message telling me it's unable to download the kickstart file. It's being set to cdrom:/ks.cfg, which should work, but it isn't.... This exact same disk just did a full install on the 701 15 minutes before I ran it on this computer.
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Jan 14, 2011
In Red hat i used the nail command to send mail using an external smtp server without sendmail or other mail services active. My question is: In Centos 5 nail is not present but is present mailx in version 8.1.1-44.2.2
Is there a way to set mailx to use external smtp server ? because in many forum i get the string mailx -S smtp= etc.etc. but in my case the -S parameter generate mailx: invalid option -- S antoher question is there a an official repository to download rpm nail for centos ?
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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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