Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteTo “delete” /dev/loop0, first unmount anything using it, then detach its backing storage with sudo losetup -d /dev/loop0. Detaching frees the mapping but normally leaves the device node available for reuse. Only if you specifically want the unused node removed should you then run sudo losetup --remove /dev/loop0. Neither command deletes the backing image or partition.
What does deleting /dev/loop0 mean?
/dev/loop0 is a Linux loop device: a kernel mapping that makes a backing file, ISO, or partition available as a block device. It is not usually a separate physical disk. People may mean one of three different things by “delete”:
- Detach the mapping: disconnect loop0 from its backing storage while leaving the node available for reuse.
- Remove the node: remove the unused loop-device node from the system after detaching it.
- Delete the backing data: separately erase the image file or other backing storage, which is not done by either loop-device command.
Safely detach or remove loop0
- Inspect the device and its dependents. Run
losetup -ato see loop-device backing files,lsblk -fto inspect block devices and filesystems, andfindmntto find mounted filesystems. Confirm that loop0 is the device you intend to change. - Unmount any filesystem using it. If the inspection shows a mount point, run
sudo umount <mountpoint>, replacing<mountpoint>with the actual path. Do not unmount a filesystem you still need. - Resolve anything keeping it busy. If unmounting or detaching fails, check for users with
sudo fuser -vm /dev/loop0orsudo lsof /dev/loop0. Stop the responsible process or service safely. If device-mapper or partition mappings depend on loop0, remove or deactivate those child mappings first. - Detach the backing storage. Run
sudo losetup -d /dev/loop0. This is also known aslosetup --detach; it disassociates loop0 from its backing file or device. The node may remain in/devand can be reused. - Optionally remove the now-unused node. If you specifically want the node removed, run
sudo losetup --remove /dev/loop0after detaching it. The node must be unused. The Linux man-pages losetup(8) manual describes this option as removing the loop-device node using theLOOP_CTL_REMOVEioctl. - Verify the result. Re-run
losetup -a,lsblk -f, andfindmntto check that the mapping and its mount are gone. If the node or mapping returns after a reboot or package update, identify the service or image that recreates it rather than repeatedly removing it.
Why does loop0 say “device or resource busy”?
A mounted filesystem, open process, or dependent device-mapper or partition mapping can keep a loop device in use. For example, in a Linux Foundation support case, /dev/loop0 was backed by /dev/sda1, mounted at /mnt/1, and held by a kernel mount. In that situation, removing the node alone will not resolve the dependency: unmount /mnt/1, remove any dependent mapping, and then detach loop0.
Use the reported mount point and process information to find the actual holder on your system; do not assume the example paths apply to your device.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →#1 Best Overall
Does removing loop0 delete the image or partition?
No. Detaching disconnects the loop device from its backing storage; removing the node removes the unused device entry. Neither operation, by itself, deletes a backing image or erases partition contents. If destroying the data is your intention, identify the backing file or device from losetup -a and handle that data separately, taking care not to remove a file or partition that another service or mapping needs. Linux kernel documentation for zoned loop block devices likewise treats removing the device and deleting its backing files as separate operations.
Which option should you use?
| Goal | Action | Effect on backing data |
|---|---|---|
| Stop using loop0 but keep its node available | Unmount dependents, then run sudo losetup -d /dev/loop0. |
Preserved; detaching does not delete the backing data. |
| Remove the unused loop0 node too | Detach first, then run sudo losetup --remove /dev/loop0. |
Preserved; node removal does not erase the backing data. |
| Remove the mapping and intentionally destroy its backing data | Resolve dependents, detach the mapping, and handle the backing file or partition separately. | Only deleted if you separately erase or remove the backing data. |
For the usual case, detach rather than remove: the node can be reused, and deleting it is unnecessary to stop using the current mapping.
Quick Recap
Best Value
- 1. 9-in-1 Linux:32GB Bootable Linux USB Flash Drive for Ubuntu 24.04 LTS, Linux Mint cinnamon 22, MX Linux xfce 23, Elementary OS 8.0, Linux Lite xfce 7.0, Manjaro kde 24(Replaced by Fedora Workstation 43), Peppermint Debian 32bit (being replaced by MX Linux 32bit) for older PC, Pop OS 22, Zorin OS core xfce 17. The versions you received might be latest than above as we update them to latest/LTS when we think necessary.
- 2. Try or install:Before installing on your PC, you can try them one by one without touching your hard disks.
- 3. Easy to use: These distros are easy to use and built with beginners in mind. Most of them Come with a wide range of pre-bundled software that includes office productivity suite, Web browser, instant messaging, image editing, multimedia, and email. Ensure transition to Linux World without regrets for Windows users.
- 4. Support: Printed user guide on how to boot up and try or install Linux; please contact us for help if you have an issue. Please press "Enter" a couple of times if you see a black screen after selecting a Linux.
- 5. Compatibility: Except for MACs,Chromebooks and ARM-based devices, works with any brand's laptop and desktop PC, legacy BIOS or UEFI booting, Requires enabling USB boot in BIOS/UEFI configuration and disabling Secure Boot is necessary for UEFI boot mode. Packing: The bootable USB drive comes in a colored PET/CPP zipper bag with instructions on how to get started. The box pictured is not included.
Rank #4
- Used Book in Good Condition
Rank #3
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
