Questions tagged [partitioning]

Disk partitioning is the act of dividing a hard disk drive into multiple logical storage units referred to as 'partitions'

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What exactly is an ext4 signature and why am I removing it?

I was following the steps from an Ask Ubuntu answer (Increase partition size on which Ubuntu is installed?) to enlarge an Ubuntu VM I have and I'm wondering what is actually being removed here: ...
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9 votes
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RAID Drive on Dell Perc H310 RAID controller not recognized

So, I recently bought a Dell Perc H310 RAID controller to put in a Fujitsu Esprimo P700 E85+ Computer running Ubuntu Server 18.04.1 LTS. The Motherboard seems to have no UEFI, just a BIOS. From a ...
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Ubuntu 22.04 system freeze randomly - completely unresponsive (keys + mouse)

I bought a new computer very recently, and I installed Ubuntu 22.04. I've experienced random freezes ever since I got it. I've tried reinstalling Ubuntu 6+ times. The freezes can even happen in the ...
gzarpapis's user avatar
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What is /oldroot/ and why do I get umount failed on shutdown?

I get an umount failed for oldroot on shutdown error. I have used several disk tool mount/gpart/fdisk/df etc to search for the /oldroot and I believe it is never mounted and does not exist. However, ...
SourceLibre's user avatar
7 votes
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LUKS terrible write performance on SSD

Since I encrypted the partitions of / and /home with LUKS on my notebook, the overall write speed on my ssd is low. Hardware & Software Intel i3 4010U 2/4 x 1,70 GHz (with AES-NI) Ubuntu 18.04.1 ...
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6 votes
4 answers
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Change partition sizes of dualboot system

I know that there are some similar topics to this, however I was not sure which of them could be applied to my case. Because I am afraid of destroying my system, I hope you can give me some advice on ...
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Buffer I/O error on dev sdc, logical block 0, async page read

The first error appeared when i had installed the program on my usb flash on windows. During the installation from unknown reason, there was an error, something like "error, please format your drive" ...
Ms.Simpson's user avatar
6 votes
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How to keep sfdisk working?

I updated to Ubuntu 15.10 but it causes a huge issue for me: sfdisk doesn't work anymore. I really need sfdisk to build partitions on SD card for my embedded Linux but it seems that options have ...
didil's user avatar
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6 votes
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Resized VirtualBox VM disk, but when partitioning can't use all new available space

yesterday I've resized a VM Virtual disk from about 15 GB to about 26 GB. If I run fdisk I can check that disk is resized: Disk /dev/sda: 26.2 GB, 26214400000 bytes 255 testine, 63 settori/tracce, ...
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What location to put bootloader, when running multiple drives and partition

I have Win8 on my desktop, where a 120G SSD is used to run windows and some select applications, while I have a 2TB HDD to provide basic file storage and where possible, install applications instead ...
Mr G's user avatar
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fdisk disk size, number of bytes and sum of all partition size does not match

I just installed a new 2T SSD drive into the server of our lab. I found the new drive using fdisk -l and here is the output Disk /dev/sda: 1.9 TiB, 1199638052864 bytes, 2343043072 sectors Disk model: ...
Jingxi Xu's user avatar
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increase boot partition size with encrypted disk

my disk is encrypted, but boot partition is by default 512MB how to increase boot partition? also how to increase boot partition during fresh new install? ubuntu 20.04
user1420275's user avatar
5 votes
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Encrypted swap killed my Ubuntu install and a virtualbox debian one at once!

My whole HDD and home dir are encrypted (so it seems to encrypt the swap partition too by default) I accidentaly shutdown the PC by with the power button. The result was that Ubuntu was starting only ...
user240891's user avatar
5 votes
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Enable Trash usage on external NTFS partition

So I am dual-booting Windows 7 and Ubuntu 14.04 with a separate ntfs partition for my music and general data. I noticed that when deleting something from this shared partition, Ubuntu tells me that ...
Matt Dyck's user avatar
5 votes
2 answers
2k views

How to recover a lost partition on Ubuntu?

I had two Linux OS installed on my machine: Backtrack 5 Gnome and Backtrack5 KDE. I updated the Gnome version and when I rebooted my Grub2 boot manager displayed a grub rescue> command line. I ...
robert finsherz's user avatar
5 votes
1 answer
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Ubuntu installer thinks my drive is empty, does not see windows partitions

I am trying to install Ubuntu 10.10 64bit. I just installed Windows 7 64bit moments ago. My drive is currently partitioned like so: 100MB Boot partition (automatically made by Windows 7 installer) ...
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How to create an Unattended Install of Ubuntu Mate 20.04

You are looking at the boot stick for Ubuntu Mate 20.04. Plus a folder frankscripts containing a row of bash-scripts (to create multiple usersr, common folders, a bunch of chrome profiles, etc) I wish ...
Frank N's user avatar
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Detect and fix slow startup on Ubuntu 20.04

I'm lately having slow startup times (90sec vs 20sec in the past) since I upgraded from Ubuntu 18.04 to 20.04. I'm on Ubuntu 20.04.1 LTS 64-bit. I'm working on a hybrid SSD (120GB) + HHD (500GB) ...
Mat S's user avatar
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4 votes
1 answer
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Expand /boot on ZFS in virtual machine

So I set up a virtual machine with Ubuntu Mate 20.04 and because I wanted to try it out, I set it up to use ZFS. I use a disk size of 10GB and the installer decided to set up my bpool to have a ...
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Warning message at boot: Option 'size' missing in crypttab (Ubuntu 20.04)

I am dual booting Ubuntu 20.04 installed with a dedicated home and swap partition. I encrypted both home and swap using encryptfs after install. Since then no issues or whatsoever. After running some ...
user1086913's user avatar
4 votes
0 answers
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Remove grub2 core.img (having 2) and resize /boot/efi

Some time ago I installed Ubuntu alongside Windows 10. I think I might have done some mistakes while installing Ubuntu. I fact, I had to install it twice and I might have done bad things to my ...
JacksOnF1re's user avatar
4 votes
0 answers
12k views

Installing Ubuntu with LVM/ZFS

I don't think I have actually used Ubuntu since I believe Dapper Drake but looking to give it a go now that 20.04 has been released. I'm having issues with the installation process. I have managed to ...
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How to move disk space from /home to / (root)

Can somebody help me move 1.7T of disk space from /home to /. The disk is on a dedicated server accessed remotely. df command output: Filesystem 1K-blocks Used Available Use% Mounted on ...
Walid Kaouah's user avatar
4 votes
0 answers
1k views

GNOME Disks and compress images

How can I create compressed images with GNOME Disks? If it is not possible, what do you suggest instead?
Tal's user avatar
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561 views

How can I clone my installation to a btrfs partition and make it bootable?

I'm trying to copy all files, configuration, everything, to a new btrfs partition without reinstalling. So far, what I've tried is to go to a live cd session (which is actually booted from an iso ...
Daffy's user avatar
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4 votes
1 answer
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Ubuntu Server 18.04 installer does not show partitions

I'm trying to install Ubuntu Server 18.04 to dual boot with Windows. When I run the Ubuntu Server installer, it doesn't show any partitions on the disk and instead recognizes my entire disk as ...
Vinicius Lambardozzi's user avatar
4 votes
0 answers
1k views

Full Disk Encryption and Custom Partitioning on Ubuntu 18.04

How can I use Full Disk Encryption (LUKS) with a custom partition scheme on Ubuntu 18.04? Full Disk Encryption seems to be allowed on installation only if the option "Erase Disk and Install Ubuntu" ...
Pablo VP's user avatar
4 votes
2 answers
3k views

Ubuntu server install on existing partition

I am trying to install Ubuntu Server 18.04 LTS on an existing partition on a Win 10 + Ubuntu machine (replacing the existing 16.04). However, on the disk setup stage, the installer does not show any ...
Abhay Mittal's user avatar
4 votes
0 answers
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Can't enlarge swap partition on LVM - 256 extents needed, but only 0 available

some days ago I installed the latest release candidate of Ubuntu (mate) 17.04 on my PC and configured it for LVM usage. I just have 4Gb of RAM and I found out that the swap space created on my SSD ...
Marco Zanetti's user avatar
4 votes
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172 views

Will Microsoft System Restore affect my Ubuntu OS?

I have Ubuntu 16.04 and Windows 10 (Dual boot UEFI). If i use windows system restore to a restore point BEFORE installing Ubuntu, will it affect my ubuntu partitions? I only have one HDD C: with 6 ...
s246's user avatar
  • 83
4 votes
2 answers
2k views

Can I format and use the "free space" to the right of my Bootable USB stick's partition table?

I would like to use my USB stick for my data, while keeping a bootable live copy of Ubuntu on it for the emergencies. I think that until some versions ago the StartupDiskCreator would create a ...
Nicola Sap's user avatar
4 votes
1 answer
64 views

I copied files from my old computer onto a drive I had encrypted on my new computer, and now I can't see them

I did something dumb. I'm setting up a new computer, and I did a clean install with an encrypted /home partition set up on its own new SSD -- I clicked the checkbox during installation to encrypt the ...
Oberon's user avatar
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4 votes
3 answers
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Unable to resize partition through Gparted

I tried to resize it but it the slide bar wont even move. It's not mounted and I cant boot into windows because Lenovo screen pops up then goes black then switches to Ubuntu. I need more memory for my ...
hunter01's user avatar
4 votes
0 answers
2k views

Broken Ext4: Why are all superblock backups missing?

After running a program for disk diagnostic made available by Seagate, my disk became blank. I was able to recover all the partitions with TestDisk, and their files are there just like before, except ...
Raphael's user avatar
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4 votes
1 answer
5k views

resize an encrypted disk?

so I've been using Ubuntu gnome for about 6 months+ now , and I wanted to install windows alongside as dual boot, but first I need to partition my disk so I can install windows on a separate partition,...
Spirex's user avatar
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4 votes
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Swap partition not active

My swap partition is neither mounted nor active. My system does find/recognise the swap partition but that is it My fstab entries: # /etc/fstab: static file system information. # # Use 'blkid' to ...
user634299's user avatar
4 votes
0 answers
2k views

Installer offers ext2 as a filesystem for main partition in Ubuntu Server 16.04

I'm installing Ubuntu Server 16.04. When it comes to the partitioning after using the "guided LVM" option Ubuntu will offer the following filesystems for the partitions: ext4 for root swap for swap (...
YaT's user avatar
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0 answers
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hard drive doesn't appear as device

I have an Acer Aspire R11 combination Laptop / Tablet. It has a 32 Gb harddrive with a few partitions. Windows 8.1 is installed on it. I recently had an issue with partitioning. I decided to use an ...
Trashman's user avatar
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Ubuntu 15.10 boot very slow (cgroup: new mount options do not match the existing superblock, will be ignored) Solution

I had this problem, ubuntu was starting very slowly and the log was showing a timelaps quite long with this line : cgroup: new mount options do not match the existing superblock, will be ignored ...
Laurent Plantrose's user avatar
4 votes
0 answers
419 views

Gnome Disks is crashing when creating encrypted partition

In Ubuntu 15.10, I have a second hard-drive and I'm trying to create an encrypted partition using the included GUI for partitioning disks. But upon doing that Gnome Disks is crashing. This is a clean ...
Alexandru Nedelcu's user avatar
4 votes
0 answers
1k views

liveCD Doesn't See Unallocated Space In My Hard Disk

I'm trying to dual boot Ubuntu 14.10 on my computer. I have Windows 7 installed and shrunk my main partition to leave a roughly 250 Gb gap (Unallocated). Partitioned as such: Recovery (20 GB) ...
Laurie's user avatar
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4 votes
1 answer
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Not accepting the crypt disk password at boot to unlock the disk for ubuntu 14.04

This is really a major issue. Check what happened. Please Help me with a solution... I had windows 7 installed in my laptop. I decided to install ubuntu 14.04 and remove windows 7. So while ...
user3884127's user avatar
4 votes
2 answers
2k views

Can't install Windows as dual boot after Ubuntu

I've a quite complicated problem related to dual boot of Ubuntu and Windows 7. At first I had Windows 7 installed in my laptop but then when I tried to dual boot with Ubuntu 14.04, I somehow ...
Mohi's user avatar
  • 141
4 votes
1 answer
329 views

Getting an error while mounting machine_config

I am trying to boot my system but, it is giving me an error as "An error occurred while mounting home/jack/jack-app/machine_config " Press S skip to mounting or M for manual recovery ...
Prakash V Holkar's user avatar
4 votes
1 answer
221 views

What are the consequences laptop running out power while GParted is running?

I was fixing my partition with GParted and it seemed to work well. But, my laptop suddenly ran out of power and I didn't realize it, then it turned off while GParted was still running which was at ...
mohur's user avatar
  • 269
3 votes
0 answers
88 views

recovery of USB drive after accidental formats of its entire block

Yes, I was dumb enough to not check that I formatted the whole block as fat32, then NTFS and multiple attempts to rejuvenate it using dd-ing a blank disk image file. On inspection of size using ...
crazo7924's user avatar
  • 130
3 votes
0 answers
425 views

Unable to create live persistent drive with usbdata partition using mkusb when ISO selected from symlink

I have a 128GB USB 3.0 pendrive in which I want to create a persistent live USB using mkusb. I also want to create a separate usbdata partition to store files as described here, but using the latest ...
Kumaresh Balaji Sundararajan's user avatar
3 votes
0 answers
346 views

Mounting Old HDDs - Not sure filesystem, RAID or not, Linux or Windows

In a bit of a pickle trying to see what's on some old hard drives sitting around in the basement. I set these up years ago and have no memory of whether they were in a Linux or Windows desktop, QNAP ...
user3290553's user avatar
3 votes
0 answers
121 views

On ZFS ubuntu install, why so many datasets?

Notice when Jammy is installed using ZFS, separate datasets are created for most sub directories under /var, /srv , /usr and /usr/local. Why would someone want to maintain /var/lib/apt in a ...
Harry Coin's user avatar
3 votes
0 answers
4k views

Ubuntu 22.04 LTS with zfs filesystem and swap: deadlock! How to solve?

So after spending weeks configuring my Ubuntu 22.04 LTS, installing all the things I need, making it exactly as I wanted, I started experiencing some random freezes of my netbook (i5 11th gen with 8gb ...
opoloko's user avatar
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