Questions tagged [partition]
A partition is a means of logically dividing a computing resource (most frequently disk storage)
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How do I find the UUID of a file system?
I'm running Ubuntu, and want to find out the UUID of a particular filesystem (not partition). I know I can use e2label /dev/sda1 to find out the file system label, but there doesn't seem to be a ...
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How to extend an ext4 partition and filesystem?
I have a 400GB disk with a 320GB ext4 partition.
I would like to grow the ext4 partition to use the left space (80GB of free space).
+--------------------------------+--------+
| ext4 ...
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df says disk is full, but it is not
On a virtualized server running Ubuntu 10.04, df reports the following:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 7.4G 7.0G 0 100% /
none ...
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How bad is it really to install Linux on one big partition?
We will be running CentOS 7 on our new server. We have 6 x 300GB drives in raid6 internal to the server. (Storage is largely external in the form of a 40TB raid box.) The internal volume comes to ...
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Reread partition table without rebooting?
Sometimes, when resizing or otherwise mucking about with partitions on a disk, cfdisk will say:
Wrote partition table, but re-read table failed. Reboot to update table.
(This also happens with ...
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Deleting All Partitions From the Command Line
How do you delete all partitions on a device from the command line on Linux (specifically Ubuntu)? I tried looking at fdisk, but it presents an interactive prompt. I'm looking for a single command, ...
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What is the recommended size for a Linux /boot partition?
What is the recommended size for a Linux /boot partition?
And is it safe to not have a /boot partition?
I see some servers don't have a /boot partition while some servers have a 128 MB /boot ...
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Linux on VMware - why use partitioning?
When installing Linux VMs in a virtualized environment (ESXi in my case), are there any compelling reasons to partition the disks (when using ext4) rather than just adding separate disks for each ...
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Sell partitioning to me
I have often wondered why there is such a passion for partitioning drives, especially on Unixy OSes (/usr, /var, et al). This does not seem to be a common theme with Windows installations.
It seems ...
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How to shrink /home and add more space on CentOS7
CentOS 7 file system is XFS, And resize2fs doesn't work. I need to shrink /home to 400G and add 100G space to /. What should I do?
# df -h
Filesystem Size Used Avail Use% Mounted on
/...
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Can we mount multiple disks as one directory?
Is there a way to mount the different disks as one directory?
Assuming I have some disks with ext4 partitions:
/dev/sda1 1Tb mounted as /store1
/dev/sda2 2Tb mounted as /store2
/dev/sdb1 2Tb ...
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votes
6
answers
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Unix Server Partitioning & Filesystem Layout
There's a lot of contradictory information about Unix server partitioning out on the internet, so I need some advice on how to proceed.
So far, on the servers I in our test environment I didn't ...
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Should I create ZFS zpools with whole disks or partitions?
I am making zpools on FreeBSD machine. While creating zpools I observe these two cases:
If I take raw disks and create zpool then I am able to form zpools and they are working perfectly.
If I format ...
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votes
3
answers
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How to move /var to another existing partition?
I have a / partition which contains /var and is too small.
I have another existing partition with enough space.
Here is my df:
File system Size. Occ. Avai. %Ful. Monté sur
/dev/sda1 ...
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votes
2
answers
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In Linux, why isn't superuser root's folder under /home?
You can create a user that has privileges like root, and it's home directory will fall under /home/username. Why does root get its own folder at the top level of the file system? Is this just ...
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Why are there only four primary partitions on an MBR disk?
I'm reading the docs over at CentOS.org.
In section 25.1.2. Partitions: Turning One Drive Into Many, there is the following statement:
The partition table is divided into four sections or four ...
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8
answers
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How to extend a Linux PV partition online after virtual disk growth
VMware allows to extend the size of a virtual disk online - when the VM is running.
The next expected steps for Linux system are:
extend the partition: delete and create a larger one with fdisk
...
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votes
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ln -s vs mount --bind
Is there any practical difference between using ln -s or mount --bind?
I want to move some folders to another partition, without changing their daemon setting, and wonder what approach I should take.
...
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answers
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Newly created XFS filesystem shows 78 GB used
We have a 12 TB RAID 6 array which is supposed to be set up as a single partition with an XFS file system. On creating the new file system, it says it has 78 GB in use, but there are no files on ...
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Unable to resolve data corruption warning with fsck
In order to create a contiguous space for my file system to grow, I created a new EFI System partition at sda1 so that I can migrate it from the current partition at sda5. The move itself has been ...
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"fdisk -l" like list of partitions and their types for LVM logical volumes?
You know how "fdisk -l" lists drive partition tables and shows the partition id/types for each partition?
Is there a similar way to get the partition id for LVM logical volumes?
EDIT: I'm aware of "...
arcanex
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answers
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How to reset a Harddisk (delete Mbr & delete Partitions) from the Command Line with a script without rebooting?
To start from a clean state I need to reset the hard disk to an empty state from command line.
It is not about running a wipe utility, the data don't have to be overwritten.
This question is quite ...
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"rm: can not remove xxx: No Space left on device" on BTRFS
Running OpenSuse 12.2.
Suddenly the root parition seems to be full (99%) but I can no longer remove files manually.
"rm: can not remove xxx: No Space left on device" although 450mb are still free ...
19
votes
2
answers
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Is there any way to fix a corrupted LDM database?
TL;DR:
Are there any tools/approaches to diagnosing and fixing LDM
(Logical Disk Manager) metadata structures without recreating
from scratch?
Full description:
I have two SSD drives set up ...
- 2,368
18
votes
10
answers
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How can I find out what hard disks are attached to a Linux box?
How do I find out what hard drives are attached to a Linux box? I'm hoping for a single command that can give me a nice list of all ATA/SCSI/etc drives.
I've catted /proc/partitions in the past to do ...
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votes
3
answers
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How can I mount a partition on every reboot?
I have a partition mounted with mount -t ext3 /dev/sda3 /foo.
Each time I reboot, I need to remount. How can I keep this mounted after every reboot?
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how to increase the size for /dev/mapper/centos-root?
My current settings are as below, where the /dev/mapper/centos-root partition is almost full.
Looks like this partition is on disk /dev/mapper/centos-root.
but there is another disk /dev/vda , which ...
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Optimal UNIX File System Partition + Setup Strategy
When partitioning a new system disk(s) for UNIX, what is your prefered strategy for both desktop and/or servers?
Please include disk partition layout, file system format(s) and options, mount points, ...
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Verify A Partition is Aligned in Linux With RAID and LVM
Does anyone know the steps to verify that a XFS filesystem on top of LVM and md RAID is properly aligned on an array of 4096 Byte aka "Advanced Format" sectored disks?
Some references are:
http://www....
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votes
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How many and which partitions should I create for a linux server?
Partitions are very important on Linux server because it give you a lot of flexibility, for example when upgrading to a bigger hard drive.
But, how many partitions should I create when building a ...
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Recommended disk/partition setup for a SQL Server
I'm looking for some advice regarding the best way to set up my disks/partitions for SQL Server. Here are some of my major concerns:
How should the SQL files be seperated (data files, logs, temp)?
...
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Non-interactively create one partition with all available disk size
This is disgusting to me, but it works:
echo -e "n\np\n1\n\n\nt\nc\na\n1\nw" | fdisk /dev/sdb
I would like to know a more prudent or elegant way to accomplish this. The entire boot record and ...
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Why does slice C or slice 2 cover the entire disk
Something that I was discussing with a couple of friends and we were unable to figure it out. In FreeBSD and OpenSolaris/Solaris when you partition a drive a partition is created that covers the whole ...
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How big should the swap partition be?
for some years, I've read that it's a good idea to create a swap partition having the double space of my RAM. does it still apply today? or this isn't needed anymore?
I have a server with 8 GiB of ...
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How to mount new logical volume (adding to fstab and mtab)?
I created a new LV for the first time using this command:
lvcreate -L 20G -n iew-vm-lv /dev/ubuntu-vg #create the new LV
When I try running mount /dev/ubuntu-vg/iew-vm-lv, I get the following error:...
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combine partitions to one disk image
I have 3 images. Each image was done by cloning (by dd) a partition (these partitions formatted using ext3 file system).
One partition is boot-able with GRUB1 (CentOS)
How can I combine them to one ...
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votes
2
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Shrink partition to exactly fit the underlying filesystem size
Recently i shrinked an ext4 filesystem size to 500GB
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 493G 64G 404G 14% /
now i want to shrink the partition size to fit ...
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votes
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How can I increase the size of a Windows 2003 NTFS partition?
I have a very important server running Windows Server 2003 and my System partition is becoming too small, it's slowing down the machine.
I have already tried all the cleaning stuff and transferring ...
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How to remove old kernels on CentOS 6 (to free up boot partition)? [duplicate]
How does one determine which kernels to remove in order to free up some space on /boot partition.
Here is a scenario (some background info).
1. Parititon info (in case it helps)
# df -h
Filesystem ...
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Mount Point Does Not Exist, Despite Creating It
I'm trying to install Arch on a Virtualbox VM. I'm following along this guide, and this video. Not sure if relevant, but the VDI file is on an external hard drive.
I've created 3 partitions as per ...
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What's the best file-system for storing virtual machine images?
I'm planning how to partition my hard drive.
I want to have 2 partitions - one for Ubuntu, the main operating system, and the other for virtual machine images, as I want to run virtual machines of ...
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5
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Resizing partition fdisk fails with invalid argument
I recently resized a VPS from a 50GB SSD to a 300GB SSD through my hoster's control panel. I now am trying to resize my main partition with fdisk to be able to use all the new space. However, fdisk ...
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Where does Ubuntu store partition UUIDs on disk?
Exactly what part of the disk is a UUID stored on? MBR? Somewhere within the partition? Is it a calculated value, or randomly generated and recorded?
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Open source applications for resizing drive partitions [closed]
I am looking for open source applications that will allow resizing hard drive partitions. I have used partition magic in the past but am looking for open source free applications that can handle this ...
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What is the difference between the Linux and Linux LVM partition type?
Fdisk shows multiple partition types. What is the difference between choosing 83) Linux and 8e) Linux LVM?
Choosing 83) Linux also works fine for using LVM, even creating a physical volume on /dev/...
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Are ZFS pools or LVM volume groups more reliable for utilizing many partitions?
When deciding whether to use LVM volume groups or ZFS pools in configuring new file servers, what needs to be considered? Is there a "better" choice in the realm of multi-purpose file ...
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Ubuntu: Resize the root LVM(2?) partition
I have an Ubuntu virtual machine running in VirtualBox 2.2.4, and I created it on an 8gb virtual disk which is too small.
So, I am trying to increase the size of the disk. So far, I have done this:
...
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Mounting a partition from a raw DD image file of a physical disk
I have a DD image taken from the raw HDD image (/dev/sdb). This image file contains an XFS filesystem that I need to mount. It is much too large to restore to disks (2.6TB img file) so I would like to ...
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CentOS Insufficient space in download directory /var/cache/yum/base/packages
I was trying to yum install libpcap when I got
Error Downloading Packages:
14:libpcap-0.9.4-15.el5.i386: Insufficient space in download directory /var/cache/yum/base/packages
* free 0
* ...
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Resize partition to maximum using parted in non-interactive mode
Since using fdisk in this case is fairly complicated due to the fact that the non-interactive usage is probably not possible or at leasr very complicated (using printf), i want to use parted ...
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