Questions tagged [loop-device]

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losetup: raspbian-20200505.img: failed to set up loop device: Device or resource busy

I am trying to shrink the image file from raspbian in Ubuntu18 so that it become small in size and easy to transfer. I am following this video where the person uses below command to setup a loop ...
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0answers
16 views

Ubuntu 20.04 LTS 2nd monitors give boot-loop

I have fresh install of Ubuntu 20.04 LTS. Everything is ok but I have my laptop on docking station and connected 2 monitors: 1st 29" LG by DisplayPort 2nd 24" Iiyama by VGA When second monitor is ...
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16 views

Is the size of loopback devices considered for calculating total disk space

I am in a dilemma and want to confirm whether the size of loopback devices is considered while calculation disk size using df -h command. Here is the output of my df -h command. Filesystem ...
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48 views

USB: Cannot mount 4.1 kB volume

Every time I connect an USB device I get the following message: Kunde inte montera 4,1 kB-volym Error mounting /dev/loop0 at /media/root/disk: Command-line `mount -t "squashfs" -o "uhelper=udisks2,...
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1answer
129 views

Slow Booting 18.04.4 LTS

I noticed my device is becoming slower at booting even when I have SSD so I tried to dig in it. First I saw there was a bug in file resume to change it to resume=none. I saw a little boost. Before ...
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180 views

print_req_error: I/O error, dev loop0, sector XXXXXXXX when boot ubuntu from loop file

I am using Ubuntu Server 18.04.3 amd64. Previously the system was installed on hdd. Then I make loop file sda2.img. Now I'm trying to boot it from this file, which is located on Windows 10 NTFS volume ...
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1answer
61 views

Changing the format of files in linux

I have a bunch of files with .vcf suffixes, comma separated and containing " like below "","CHROM","POS","ID","REF","ALT","QUAL","FILTER","INFO","FORMAT","NORMAL","TUMOR","Depth","...
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1answer
46 views

Merging these files

Having a sets of matched files in a folder, the name of each pair of files is like this with a basename, for instance LP6005334-DNA_H01_vs_LP6005333-DNA_H01.passed.somatic.indels.vcf.parsed.txt and ...
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1answer
61 views

Can't log in; always return to prompt [duplicate]

How do I solve this login loop? Every time I have given the correct password, but my account is not opening. Every time it comes back to my login prompt. Crashes back to the login screen.
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2answers
2k views

How to remove /dev/loops [duplicate]

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 ...
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Login loop 19.10 extended problems

Struck at login loop 19.10 running on dual boot Lenevo ideapad Core i5 8th gen no external graphics. This is what I have tried so far.. Alt ctrl F5 , 1) reconfigured and selected gdm3 and lightdm ...
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1answer
75 views

Lubuntu login screen keeps on appearing [duplicate]

Well I have installed Ubuntu 18.04 LTS lubuntu tty1. Was working fine for two days, but a problem now. When I try to login, the login page keeps on reappearing repeatedly without logging me in. ...
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119 views

I discovered several (about around 100) loop processes in memory of my Xubuntu 18.04 LTS desktop. What are these for and can I safely remove them? [duplicate]

loop processes (over 100) in memory: I can see them in taskmanager. Can anyone tell me what these processes are for, and what uses them? They are all called loop (with an increasing number (up to ...
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69 views

Ubuntu 16.04 LTS using loop devices for mounting USB, other removable media

all, Forgive me -- my Google-foo is horrible today. I'm a developer working on a system running Android as an embedded environment. We are currently working on both Android 7.1.1 and Android 8. Our ...
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0answers
122 views

Are snaps limiting ubuntu product?

Since loop devices are limited, and based on of my ubuntu 18.04 (with cinnamon), one must assume that at some point ubuntu will be useless. There will be so many loop devices for the snaps that will ...
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0answers
136 views

Mount an image created by adb pull /dev/block/mmcblk*: “wrong fs type”

With the command below, I thought I had rescued the content of my broken Android phone: adb pull /dev/block/mmcblk0p28 mmcblk0p28.img Unfortunately my attempt to mount it on Ubuntu fails: sudo ...
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1answer
1k views

How do I set up a loop device at startup with service?

I'm setting up a loop device for VM raw image back-file, with this command: sudo losetup /dev/loop0 "/home/asus/VirtualBox VMs/Windows RAW/Windows 10.img" And it works fine. $ losetup -l NAME ...
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1answer
182 views

Too many loop devices on system monitor

I too have the same issue in Ubuntu 19.04 (had it back in 16.04, but removed the entire snap). I can't remove bunch of snap images since I am not sure whether I need them (e.g. Yaru theme, etc...) ...
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37 views

Slow starup due to snaps programs [duplicate]

I have installed several snaps programs on my Ubuntu 18.10 and it's taking almost 4 minutes to the computer to startup. I noticed those /loop/dev... that appears at startup and found out that those ...
1
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1answer
67 views

How to speed-up boot by disabling few dev-loox.device? [duplicate]

When I checked my system's boot logs, I noticed that each of the dev-loopx.device takes a good 3-5 seconds to boot, and I have a total 20 such loopx devices lines up during my boot, which ultimately ...
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1answer
813 views

When I ping my network address the loopback interface answers

On my computer if I ping the address associated to my network card (enp0s31f6 - 192.168.1.15) the loopback device will be the device from where the answer actually come. I know what the loopback ...
2
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1answer
341 views

Why is “loop14” not listed in lsblk?

Upon listing the blocks using lsblk, I found 14 look blocks listed, from loop 0 to loop 13. me@alpha:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 87.9M 1 loop /snap/core/...
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1answer
191 views

For loop not working

I'm creating a bash script that among other things, checks a list against another list. Basicly, I created this for loop to check the file "data.txt" for every item in "names.txt" And all matches ...
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0answers
114 views

How can I loopback only Line-in with a headphone that has no microphone?

I've been using loopback module for some time and it all works except when I plug a headphone without a microphone. when I plug a headphone without a microphone the system sound is "loopbacked" making ...
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1answer
189 views

Are these processes basically the same “ sudo mount -o loop imagefile mntpoint” vs “ sudo losetup /dev/loop2 imagefile”

I am trying understand what the difference is between two ways of creating a loop mount point. Now I can create this with: sudo mount -o loop /file_to_use /mntpoint, and sudo losetup /dev/loop1 /...
4
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1answer
5k views

WSL - /dev/loop0 workaround

I am trying to setup Bochs as shown in this tutorial. However, I'm using WSL and there is no loop0 device. # bochsrc.txt # megs: 32 romimage: file=/usr/share/bochs/BIOS-bochs-latest, ...
3
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0answers
244 views

I have a lot of loop devices, what are they and should I get rid of them? [duplicate]

Whenever I open my file browser, there are a these loop devices, I don't know what they are, I tried to look up but I didn't understand what they are. They keep increasing every so often, I haven't ...
5
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1answer
4k views

Why are there multiple loop devices for the same snap?

I used lsblk to check connected devices, when I found that there are a total of 3 loop devices for the same snap "core", with revision numbers. loop1 7:1 0 81.6M 1 loop /snap/core/4110 loop2 ...
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1answer
352 views

Login loop after nvidia driver

I know this question has been asked before but i tried all of existing solutions non of them solutions worked for me. Edit: My graphics card is 950M GEFORCE GTX I've tried with Ubuntu 16.04 and ...
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2answers
8k views

How to create a virtual network interface in Ubuntu?

I'm testing a network program on Ubuntu. Is there any way to create a virtual network interface in Ubuntu. Something like lo is good, but unfortunately there is bunch of packets on lo with 127.0.0.1 ...
6
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1answer
975 views

What is the function of the list of loop devices? [duplicate]

A lot of strange loop devices appear in my Kubuntu OS. [translation: Hard disk 107.4GB Hard disk 487.0GB Loop Device Hard Disk 4.0GB Loop Device Loop Device Loop Device ...
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3answers
11k views

Create loop device for ext4 filesystem

I created and formatted a file as an ext4 file system and I am trying to mount it as a loop device. Initially, there were no loopX entries in /dev, so I created one like this: root:~# mknod -m640 /...
1
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2answers
553 views

an 84MB Volume /dev/loop0 popped up and I don't know what it is or why it popped up [duplicate]

So, out of nowhere a 84MB Volume /dev/loop0 popped up. I don't know what it is or why it is there. I did recently install dropbox, Kdenlive, and VLC Media Player. Could one of those programs have ...
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0answers
65 views

Login Loop after upgrading 16.04 from 14.04

Recently I upgraded my OS to 16.04 from 14.04. Now I can login using root user. However I could not login using the user I created during installation. I tried a lot troubleshooting using Nvidia ...
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0answers
872 views

Creating fake/virtual character device with loopback

According to this post How to Create Virtual Block Devices I have tried to create a loopback device by changing mknod b parameter to c for a character device , but when I repeat the following for a ...
41
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2answers
86k views

What is /dev/loopx? [duplicate]

$ df -kh Filesystem Size Used Avail Use% Mounted on udev 7,8G 0 7,8G 0% /dev tmpfs 1,6G 19M 1,6G 2% /run /dev/sda2 622G 227G 364G 39% / tmpfs ...
3
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1answer
841 views

Ping loopback from another computer

I'm having trouble setting up static routing. My target machine 192.168.1.36 has a loopback address of 192.168.46.1 255.255.255.255 which I am trying to ping from another device in the network 192.168....
4
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1answer
13k views

How to route pulse audio device into alsa loopback (virtual microphone)?

I want a flash application that wants to record my microphone (something like https://online-voice-recorder.com/) to record a Pulse Audio source. I figured, that flash uses ALSA. So I installed the ...
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0answers
37 views

Is my way to install an AES encrypted partition good or bad?

I would want to install a partition encrypted with AES using a loop-device. So first, I install the partition and its files system. fdisk /dev/sda mkfs.ext4 /dev/sdaX (with "sdaX" the created ...
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1answer
223 views

How can i ping loopback IP without entry in routaing table?

ifconfig's output: $ ifconfig enp4s0f1 Link encap:Ethernet HWaddr f8:32:e4:d3:a1:4e UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:...
4
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1answer
6k views

mounting iso file as loop device

I'm trying to shrink my raspberry pi images following this tutorial: https://softwarebakery.com/shrinking-images-on-linux root@host:~# modprobe loop # no errors returned root@host:~# lsmod | ...
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1answer
1k views

Is it possible to mount a virtual disk as a drive?

I'm building Linux From Scratch. Fun project. Anyways, I've created a 60 gigabyte raw disk image using dd and filled it with /dev/zero. I can't find anything online about how to mount the image as an ...
2
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0answers
865 views

Ubuntu 16.04 LTS in login loop [duplicate]

Seen many questions on this matter, but as I can not access CTRL-ALT-F1/2 I'm stuck into this loop. It keeps asking for password, clean orpheants and back to login. As I can NOT open any manager/...
4
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2answers
2k views

Creating disk images as a normal user

I want to be able to run the following script as normal user (as root it runs fine): #!/bin/sh dd if=/dev/zero bs=8192 count=128 of=disk.img mkfs -t ext2 -F disk.img losetup /dev/loop0 disk.img ...
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0answers
2k views

wifi doesn't work with various error messages [closed]

I've upgraded to ubuntu 16 , then I've a problem with wifi as it doesn't work and gives me message "device not ready" when it try to make the dev up $sudo ip link set wlo1 up RTNETLINK answers: ...
4
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1answer
2k views

Install Ubuntu on a loop device?

I used grub2 to boot the Ubuntu ISO file from my hard disk (without burning it to a DVD or a flash drive), but I don't want to install Ubuntu to a partition on my hard disk; instead I want to install ...
2
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1answer
177 views

Formatting the loopback device?

I'm very new to Ubuntu, I used the Windows installer to install it aside with Windows 7. I chose the same partition as it has enough space. I got this message when the computer rebooted and I'm afraid ...
1
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1answer
127 views

System is unable to boot after upgrade to 15.04. Version 219

I wanted to upgrade my system from Ubuntu 14.04 to 15.04. When the upgrading process finished after reboot I get infinite loop "version 219" on the black screen. I have been browsing a lot but didn't ...
4
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2answers
7k views

Loop module not present on Ubuntu installation

sudo modprobe loop max_loop=255 does not return an error, but lsmod | grep "loop" returns nothing. Likewise find /lib/modules/$(uname -r) -name "loop.ko" doesn't print any paths to the screen. I'd ...
6
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3answers
1k views

In the Disks (Disk Utility) application in 14.04, what does the auto-clear setting do?

I'm playing with some disk images via loopback devices (e.g. /dev/loop0). When viewed in the Disks (Disk Utility) application there's a setting labeled "Auto-clear" which is currently set to OFF. ...