Questions tagged [fdisk]

fdisk command-line utility that provides disk partitioning

fdisk (for "fixed disk") is a commonly used name for a command-line utility that provides disk partitioning functions. fdisk writes the master boot record.

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How do I create and tune an ext4 partition from the command-line?

PARTITIONING (e.g. fdisk ) What are some useful commands used for partitioning an additional hard drive from the command-line? Since most published guides steer towards GParted and other graphical utilities, a summary of some command-line sequences…
gth
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How to resize / enlarge / grow a non-LVM ext4 partition

I have already searched the forums, but couldnt find a good suitable answer: I have an Ubuntu Server 10.04 as KVM Host and a guest system, that also runs 10.04. The host system uses LVM and there are three logical volumes, which are provided to the…
Mischa
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Text User Interface for fdisk?

Is there a TUI for fdisk ? Where can I get it from and how can I use it? I would like one which is in the ubuntu repos
Amith KK
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How do I create a backup image of an SD card?

I have to copy my SD card to my hard-drive. I know that I have to mount and unmount it, but the following line doesn't work: dd if=/media/oneiric of=~/sd-card-copy.img That was my first try, but then I found out that I have to unmount my card and…
Adi
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How to remove /dev/loops

On my Ubuntu desktop, the command fdisk -l shows /dev/loopX up to /dev/loop23 . I'm using gnome-fallback on Ubuntu 18.04 LTS. I'm wondering what possible effects these could have on performance and stabilty of the OS, and if they are just…
Karlom
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fdisk does not show boot flag

I normally use fdisk -l to look at partitions. I recently installed ubuntu 17.10 on a computer, and noticed that fdisk is not showing me the boot flag as it used to do. The output now looks for example like this Device Start End Sectors Size Type…
funklute
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What is the "Loop" partition in ubuntu?

I'm a new user to Ubuntu, to just installed and used the command sudo fdisk -l . I found out that my Windows partition is SDA and my ubuntu is loop . What is this loop thing?
Giovani
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fdisk sector size and alignment issues

I executed the command: # fdisk /dev/sda1 The output was: The device presents a logical sector size that is smaller than the physical sector size. Aligning to a physical sector (or optimal I/O) size boundary is recommended, or performance may be…
Sir Jo Black
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Hard Drive Partition: Optimal Transfer Size

I have a Western Digital 4TB drive (WD40PURZ). It appears that the recommended procedure for partitioning the drive results with: "Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes)" warning from the linux…
Mark W.
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File system has become read-only after updating to 15.04?

I stupidly decided to update from 14.04LTS to 14.10 and then 15.04. Since doing that, my website has gone down and file system has become read only. I have no idea what has gone wrong, as the updates completed successfully. This is what I have found…
Lewis Lebentz
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Changes to SD card undone after re-mount (e.g. deleted files re-appear)

After having a corrupted file system on my SD card due (probably due to unsufficient power supply) I want to make a new filesystem. ( e2fsck fails, log below.) However, any file-related changes on the SD card are magically undone! First example:…
chs
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Why "fdisk -l" does not give any output in terminal?

When I do fdisk -l in terminal there is no output? What can be the probable reason? How to fix it?
Chirag
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USB stick not recognized by fdisk

My USB stick got corrupted. I am not even able to format it as it is not found properly by my OS (Ubuntu 16.04). What I tried: It is found by neither fdisk -l , lsblk nor gparted . It is shown by lsusb : > lsusb | grep Kingston Bus 004 Device 016:…
hobil
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In Ubuntu ISO MBR, why does a GPT partition overlap the boot partition, and make MBR uneditable?

Question and context: In the MBR partition table of distros like for example ubuntu-16.04-desktop-amd64.iso, why does a GPT partition appear to overlap the primary boot partition? This seems to generate errors if I try, in any way, to edit the…
Elliptical view
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The state of partitioning tools?

What is the state of partitioning tools in Linux? Which tools are recommend and which should I stay away from? Namely I am interested in fdisk , cfdisk , sfdisk and the fdisk and cfdisk variants that come in the gnu-fdisk package. The "go to"…
Grumbel
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