Red Hat :: Increasing Disk Device To / Root Disk Enterprise Server 4?

Mar 25, 2010

I am having problem with the root disk / fill up. So now that i have the disk information provided from SAN team Id 0:3, how would i do to add this device to / to increase space on Redhat Enterprise server 4?

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Server :: Squid Servers Cache Size On Disk Automatically Increasing And Decreasing?

Jun 24, 2010

Squid servers cache size ondisk automatically increasing and decreasing,how I would resolve this issue

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Ubuntu :: Resize Entire /root (root.disk) Virtual Disk Space?

Jan 25, 2011

I'm running out of space in wubi. Online wubi help didn't help much since they suggest creating extra virtual disk space(similar to having a diffrent partition i guess) .None of them speak about increasing the size of /root disk space(or root.disk). I store all files in space shared with windows or external disk and use ubuntu only to install and use softwares and browsing. So how do increase the available space for installing more softwares?

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Server :: Create A Boot Disk For Red Hat AS Enterprise Server?

Jan 15, 2010

I am in need of the instructions of how to create a boot disk for my RED HAT Linux Enterprise Server. I have a floppy drive also it this helps.

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Ubuntu :: Increasing Disk Space For 10.10 Without Reinstalling?

Apr 18, 2011

I have installed ubuntu 10.10 inside windows (windows 7) from the ubuntu home edition CD.I have allocated a disk space of 12GB. How could I increase the disk space to 20 GB without reinstalling ubuntu?

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OpenSUSE Install :: Will Disk Space Increasing Wihtout Shuting Down?

Mar 18, 2011

I am running OpenSUSE 11.4, and have 2 partition in it, one is / (about 10GB), another one is /home (about 50GB). I usually put into sleep when I'm away from my computer. It had been few days I never shut down my computer, and today I got a warning message mention that my disk space (/home partition) is full. I check my disk space in Dolphin's properties menu for the /home directory, found out that it only used up 10GB disk space. I did a check on the "My Computer" on the desktop, the status is showing full usage (100%) in red color. I did df -h command, the partition for the /home is showing 100% used as well. I don't really know what is going on, and then I restart my PC. It back to normal after I come back to my Linux, which is 10GB disk space used. I don't know whether this is a bug in OpenSUSE or not.

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Ubuntu Installation :: Increasing Size Of Hard Disk Space Allocated For Filesystem?

Jan 4, 2010

I recently installed Bio-Linux 5.0 as a dual boot system with XP for some bioinformatics applications, but Im having some problems with the amount of disk space which can be allocated specifically for the Ubuntu install.

I partitioned a 250 GB portable hard drive into:

/dev/sdb1: 154.76 GiB (with 30 GiB allocated for Ubuntu)
/dev/sdb2 : 78.13 GiB

Ive been using blastclust to analyse some very large data sets, which keeps on crashing due to filesystem running out of disk space.

When I installed Bio-Linux 5.0 from the live cd, the maximum size I could allocate to the install was 30 GiB, and I havent been able to find a way to change this.

Ive tried using System->Administration->Partition Editor using the live cd, and can view / delete the partitions, but I cant find a way to specifically alter the disk space allocation for Ubuntu.

How do I increase the filesystem size to larger than the current 30 GiB?

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General :: Install Red Hat Enterprise 5.0 On Hard Disk

Apr 25, 2010

How to install Red Hat Enterprize Linux 5.0 on Hard disk which have xp already install

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Server :: Implement Disk Quotas For Root File System?

Jan 2, 2011

There isn't any separate file system for /home and we have only one (/) root file system for everything else on the system. Is there any way that we can still implement quotas for users through their home directories was mounted on (/) root file system. Do we need to have a separate file system (/home) compulsory for implementing disk quotas?

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Ubuntu Installation :: Increasing Disk Space On A Wubi Installation?

Mar 1, 2011

Is it possible to increase the disk space for a Wubi installation?

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Server :: Disk 2 Disk Mirror ?

Aug 4, 2010

I have some servers running rhel5,they are in mirror disk 2 disk there is no any hardware RAID only software RAID and they in remote place.

Assume RHEL5 hda(Disk1) & hdb(Disk2) currently in mirror, i have to install some patches in it. Before that i have to break the mirror and boot from hdb if it is successful. then i have to apply the patches to hda.

After that i have to boot from hda and check whether the latest patches updated and working fine. finally i have put them in mirror. the same scenario for solaris.

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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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General :: Red Hat Enterprise Server 5.5 Not Recognize The Root Password?

Jan 20, 2011

how come when I install usting text mode I can log in as root but when I use GUI I cannot it will not recognize the root password?

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Programming :: Get From A Disk UUID To A Device Name?

Oct 4, 2010

Is there any C function that will translate UUIDs into device names? I have a little graphical mount tool that can read user-mountable device names from /etc/fstab and lets you cycle through the list and mount or unmount them. But it doesn't work with UUIDs, which are preferred these days. Is there any way around this?

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General :: Why Is JFS Faster Than A Raw Device For 1.5TB Disk

Aug 19, 2010

I have a 4 * 1.5TB RAID5 disk array (software linux RAID, formatted with jfs) on my Fedora 12 system and want to expand it by adding another 1.5TB disk. I have added a drive to the system and conducted a simple performance check on it to make sure it was functioning properly:


# dd if=/tmp/bigfile.dat of=/dev/sdg1
5478774+1 records in
5478774+1 records out
2805132609 bytes (2.8 GB) copied, 168.77 s, 16.6 MB/s

But 16.6 MB/s is lousy. I ran an iostat -dmx 2 on this drive at the time of this lousy performance, and typical output was:


Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await svctm %util
sda 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
sdb 1.50 0.00 258.50 0.00 16.25 0.00 128.74 0.17 0.66 0.36 9.30
sdg 0.00 3556.00 4160.00 32.00 16.25 16.00 15.76 135.73 35.11 0.24 100.05

(note that sda and sdb are a linux raid mirror set for the / filesystem that holds /tmp). I formatted the new drive (/dev/sdg1) with jfs and mounted it under /mnt2:


# jfs_mkfs /dev/sdg1
jfs_mkfs version 1.1.13, 17-Jul-2008
Warning! All data on device /dev/sdg1 will be lost!
Continue? (Y/N) y


I would like to know what the performance will be like before I add the disk to the array because I don't want to wait for the whole array to be rebuilt before finding out my array is performing badly. The array is used as part of a mythtv system and has up to 6 simultaneous recordings running on it, so it needs to perform well.

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General :: Can't Mount Usb Disk - It Just Create /dev/sg Device But No /dev/sd

Dec 23, 2010

I have a Corsair R60 ssd disk which is a disk with both sata and usb connectors. But the usb thing seems to be a bit non-standard, or maybe its just my fedora linux.When I insert the disk using a usb cabel to a running Fedora 14 linux system, a device called /dev/sg3 is added but that is all. No new /dev/sd* device is created so I can't mount the disk.

If I look at

cat /proc/scsi/sg/device_strs

I get

ATA Hitachi HTS54321 FB2O
Seagate Desktop 0130
Corsair CSSD-R60GB2

So the disk is there. (The last entry) but my linux will for some reason not see it as a usb hard disk. When I insert other usb disks they work fine. It is only this specific disk which causes problems. I have tried on 3 different computers with the same result.

A hint to the problem may be that if I add the disk to a windows system(With usb) the disk is called "A fixed disk" and not a portable disk as expected. The disk works fine with linux If i connect it with the sata cabel, but I would really like to have it working with usb too. (To mount it on computers without sata).

Added:I did try to mount /dev/sg3 but mount say that its not a block device. (File say Its a character special device).

Added output from dmesg:

[ 97.454073] usb 7-1: USB disconnect, address 2
[ 105.913055] hub 2-0:1.0: unable to enumerate USB device on port 3
[ 107.048054] usb 2-3: new high speed USB device using ehci_hcd and address 5
[ 107.162900] usb 2-3: New USB device found, idVendor=1b1c, idProduct=1ab8


I found an other guy with exactly the same problem [URL] so I think its beginning to look like a bug in the drives firmware or in the linux kernel.

Final update:Corsair have said that the disk design is broken and there does not seem to be any way to make it work.

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Fedora :: Device Hasn't Booted From Hard Disk?

Jul 26, 2009

2 days ago i have tried to install fedora 11 ...but after i did achieved installation successfully ...and rebooted system ,the device hasn't booted from hard disk ,alternatively it has booted from the network (Broadcom)- the third booting choice in bios - . i have tried three different DVDs ....but no thing changes ...!

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Ubuntu Installation :: 11.04 Won't Load - Error: No Such Device And No Such Disk

Apr 29, 2011

I just did a clean install of 11.04. Now when I try to boot the machine I get the following error: Quote:

error: no such device
error: no such disk
error: you need to load the kernel first

Then I am taken to the Grub menu. Selecting anything from the Grub menu brings this error back up. So now I'm stuck with a computer that won't work.?

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Ubuntu :: Mount A Disk To A Dir Without Pointing To Its Changing Device Name?

Jan 14, 2009

Sometimes when I restart, my NTFS drives will mount in incorrect directories. It seems to only happen when I plug in USB devices such as flash drives, and keep them in when I boot. I have the fstab file configured correctly, but it still resorts to some odd default mounting points. Edit suposedly the device name changes whenever I boot with a flash drive plugged in. Is there anyway to mount a disk to a dir without pointing to its changing device name.

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General :: 1TB Hard Disk Partition - Device Not Created

Apr 30, 2010

I have installed 1tb hard drive and would like to partition as follows:

1) / - 20g
2) /swap - 6G
3) /photos /150g
4) /videos /500g
5) /audio /300g

After 2-3 partition an extended partition automatically created in which I am not able to create specified capacity i.e., say I want 150g of /photos partition, the /videos partition is automatically reduced and a free space at the end appears. Some free space is always there which i am not able to understand. Nevertheless i clicked to create, but I get an error viz. 'device not created'.

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Red Hat :: Second Virtual Disk Mounted Only For Root

Oct 22, 2009

Running RHEL 5 in a VMWare image, needed to add a second virtual disk, which worked fine - added it in VMWare, used fdisk and mkfs to format and mounted it as /SI50 so I could then access it. Did all this as root of course. Now I have created a new user and when I log in not only do I not see the new drive, but if I try and mount the drive I get an error "only root can do that". I absolutely have to see this drive as this new user so mounting it only for root to see is no good at all. I'm sure I'm fundamentally doing something wrong here, because obviously the way drives appear in Linux is completely different to windows.

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Slackware :: How Do I Specify Root Disk In Lilo

Jun 13, 2010

With the continued growth of SATA devices, I have really been having problems with my boot loader. In the old days, it was pretty easy to make sure that the IDE devices stayed put. However, now everything is an sd device. Specifying a root directory of /dev/sda1 in lilo is no longer a sure thing. If you have a USB device plugged in or an ESATA device, your sd devices are no longer guaranteed to stay put.In reading through the lilo documentation, it appears that you can specify root devices by UUID or even by LABEL.

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CentOS 5 :: How To Mirror Root Disk

Apr 27, 2011

I've got a new server built, shaken down and patched (2.6.18-194.el5). Works nicely.

I don't want to rebuild it from scratch if the root drive goes belly up, but I do NOT have a hardware raid controller.

The root disk should be pretty static at this point... any suggestions how I might back it up?

I was thinking I could put in another disk (same size or bigger) and use cron to run something like this nightly: dd if=/dev/sda1 of=/dev/sda2

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Ubuntu :: Disk Space Used Doesn't Match What Is Shown In Disk Usage Analyzer?

Feb 26, 2011

Some thing is using up a huge amount of my disk space about 10G and I can not determine what it is. When I look at my disk usage in system monitor it say I have used about 25G and when I scan the directory in disk usage analyzer the entire file system used is 15G.

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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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Ubuntu :: Pyrun.exe No Disk \ Disabled DVD Drive In Device Manager?

Aug 25, 2010

I've mounted Ubuntu 10.04 ISO using Daemon Tools and Virtual CloneDrive, but I end with thisI've disabled my DVD drive in device manager, but I still get it no matter how many times I try.

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Hardware :: SCSI Hard Disk Device Node Creation

Mar 26, 2010

I am developing for a Linux based device for which the HOT PLUG option is deactivated. As part of optimizing the code, we also don't want to create device files for unused devices. We understand that both USB attached and fixec SCSI hard disks would create device files like /dev/sda,/dev/sda1 /dev/sdb, /dev/sdb1 etc. Is this understanding correct?

In the case of USB attached SCSI devices, would driver create this device file entry? How is it created? Can somebody please tell me how it is being created automatically. In case I attach a fixed SCSI hard disk before boot up(and create device file /dev/sda1), would USB SCSI device driver create device files starting from /dev/sdb, automatically.

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Hardware :: Raid6: Disk Failure On Sdb1, Disabling Device?

Jun 9, 2010

For backup purposes, I built a RAID6 array on USB. When during the night the backup filesystem is being mounted, every so many days, a random disk fails:

Code: sd 9:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 9:0:0:0: [sdb] Sense Key : Illegal Request [current]
sd 9:0:0:0: [sdb] Add. Sense: Invalid field in cdb[code].....

In other words, my RAID set fails every so many mounts, but I know how to fix it.What I want to find out is:

- Why is a random drive failed every now and then?

- How can I prevent that drive from being failed?

BTW: I have a second RAID set that has been functioning for years without error, so the setup I use must be correct. The only difference between both RAID arrays is the different vendor of the disks.

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Hardware :: Cannot Partition Hard Disk - No Valid Device Found

Mar 25, 2010

I have installed vmware in windows server 2003 enterprise edition. When I installed I changed the default installation folder from c: drive to i: drive, as I do not have space in c: drive. After I captured red hat linux cd in vmware and reached partitioning section and continued I got a message like "an error has occured no valid devices were find on which to create new file systems, please check the hardware for the cause of the problem". The machine is IBM server....

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Debian :: Disk Health Warning - Disk Part Of RAID5 Array

Feb 17, 2016

I received the following error when I got home from work today. If this was a windows environment, my first inclination would be to boot off my dvd and then run a chkdsk on the drive to flag any bad sectors that might exist. But there's a complication for me.

Code: Select allThis message was generated by the smartd daemon running on:
   host name:  LinuxDesktop
   DNS domain: [Empty]

The following warning/error was logged by the smartd daemon:
Device: /dev/sdc [SAT], 1 Currently unreadable (pending) sectors
Device info:
WDC WD5000AAKS-65V0A0, S/N:WD-WCAWF2422464, WWN:5-0014ee-157c5db9a, FW:05.01D05, 500 GB
For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.The original message about this issue was sent at Sun Feb 14 13:43:17 2016 MST.Another message will be sent in 24 hours if the problem persists.

From gnome-disks
Code: Select allDisk is OK, 418 bad sectors (28° C / 82° F)

I did a bit of reading and it seems that most people suggest using badblocks to first get a list of badblocks from the drive and save it to a file. Then use e2fsck to then mark the blocks listed in the badblocks file as bad on the hard drive. My problem here is that this drive is part of a RAID5 array that hosts my OS. I wanted to confirm if this was still the correct process.I boot to my Live Debian disk, stop the raid array if it's active. Then run badblocks + e2fsck commands on the drive in question and then reboot.

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