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 Open-Source — ultimaker ultimaker (Ultimaker) / debian-backup — Project
A certifiably-awesome open-source package repository curated by Ultimaker, hosted by Cloudsmith.
Note: Packages in this repository are licensed as GNU General Public License v3.0 or later (dependencies may be licensed differently).
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Debian logo zerofree  1.1.1-1

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One-liner (summary)

zero free blocks from ext2, ext3 and ext4 file-systems

Description

Zerofree finds the unallocated blocks with non-zero value content in an ext2, ext3 or ext4 file-system and fills them with zeroes (zerofree can also work with another value than zero). This is mostly useful if the device on which this file-system resides is a disk image. In this case, depending on the type of disk image, a secondary utility may be able to reduce the size of the disk image after zerofree has been run. Zerofree requires the file-system to be unmounted or mounted read-only.

The usual way to achieve the same result (zeroing the unused blocks) is to run "dd" to create a file full of zeroes that takes up the entire free space on the drive, and then delete this file. This has many disadvantages, which zerofree alleviates: * it is slow; * it makes the disk image (temporarily) grow to its maximal extent; * it (temporarily) uses all free space on the disk, so other concurrent write actions may fail.

Zerofree has been written to be run from GNU/Linux systems installed as guest OSes inside a virtual machine. If this is not your case, you almost certainly don't need this package. (One other use case would be to erase sensitive data a little bit more securely than with a simple "rm").

License

Unknown

Size

8.7 KB

Downloads

5

Tags

debian/buster deb armhf main latest

Status  Completed
Checksum (MD5) e4274784d77c520bdd03a5dc8d30ea75
Checksum (SHA-1) 661179d4f97cfb5666fe174950ab1ef0e2302ef9
Checksum (SHA-256) 3aa14777302f2c134c4d29580edfd6f348044fc8a3bfffaedc030b2f525d00df
Checksum (SHA-512) 2aef5f386f751e50894db5fd9609e5dbafd776ff263857b3a3409815dba7fd0205…
GPG Signature
Download
GPG Fingerprint c0a114330029b468b1146f70c334efcb2c4f9be3
Distribution debian/buster - Debian - 10 (Buster)
Storage Region  Dublin, Ireland
Type  Binary (contains binaries and binary artifacts)
Uploaded At 10 months, 2 weeks ago
Uploaded By alex-borro
Slug Id zerofree_111-1_armhfdeb-lpta
Unique Id DvEooqz7EX9y
Version (Raw) 1.1.1-1
Version (Parsed)
  • Major: 1
  • Minor: 1
  • Patch: 1
  • Pre (Str): (empty)
  • Pre (Num Array): 1
  • Type: SemVer (Strict)
  extended metadata
Homepage https://frippery.org/uml/
Installed Size 25.0 KB
Maintainer Thibaut Paumard <thibaut@debian.org>
Priority optional
Section admin
pkg zerofree_1.1.1-1_armhf.deb 5
8.7 KB 		md5 sha1 sha256 sha512
Package Contents (zerofree_1.1.1-1_armhf.deb)
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This package has 12 files/directories.

Dependencies

2

Checksum (md5)

185a5bbca1ca502954e4ce886e68c4b2

Depends
libc6 >=2.4
Depends
libext2fs2 >=1.42
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[![This version of 'zerofree' @ Cloudsmith](https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true)](https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/)
|This version of 'zerofree' @ Cloudsmith|
.. |This version of 'zerofree' @ Cloudsmith| image:: https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true
   :target: https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/
image::https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true[link="https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/",title="This version of 'zerofree' @ Cloudsmith"]
<a href="https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/"><img src="https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/1.1.1-1/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true" alt="This version of 'zerofree' @ Cloudsmith" /></a>

rendered as: This version of 'zerofree' @ Cloudsmith

To embed the badge for the latest package version, use the following: 

[![Latest version of 'zerofree' @ Cloudsmith](https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true&show_latest=true)](https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/)
|Latest version of 'zerofree' @ Cloudsmith|
.. |Latest version of 'zerofree' @ Cloudsmith| image:: https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true&show_latest=true
   :target: https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/
image::https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true&show_latest=true[link="https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/",title="Latest version of 'zerofree' @ Cloudsmith"]
<a href="https://cloudsmith.io/~ultimaker/repos/debian-backup/packages/detail/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/"><img src="https://api.cloudsmith.com/v1/badges/version/ultimaker/debian-backup/deb/zerofree/latest/a=armhf;xc=main;d=debian%252Fbuster;t=binary/?render=true&show_latest=true" alt="Latest version of 'zerofree' @ Cloudsmith" /></a>

rendered as: Latest version of 'zerofree' @ Cloudsmith

These instructions assume you have setup the repository first (or read it).

To install/use zerofree @ version 1.1.1-1 ...

To install packages, you can quickly setup the repository automatically (recommended): 

curl -1sLf \
  'https://dl.cloudsmith.io/public/ultimaker/debian-backup/setup.deb.sh' \
  | sudo -E bash

If you need to force a specific distribution, release/version, architecture, or component (if supported), you can also do that (e.g. if your system is compatible but not identical): 

curl -1sLf \
  'https://dl.cloudsmith.io/public/ultimaker/debian-backup/setup.deb.sh' \
  | sudo -E distro=debian codename=buster arch=ARCH component=COMPONENT bash

or ... you can manually configure it yourself before installing packages: 

apt-get install -y debian-keyring  # debian only
apt-get install -y debian-archive-keyring  # debian only
apt-get install -y apt-transport-https
# For Debian Stretch, Ubuntu 16.04 and later
keyring_location=/usr/share/keyrings/ultimaker-debian-backup-archive-keyring.gpg
# For Debian Jessie, Ubuntu 15.10 and earlier
keyring_location=/etc/apt/trusted.gpg.d/ultimaker-debian-backup.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/ultimaker/debian-backup/gpg.C334EFCB2C4F9BE3.key' |  gpg --dearmor >> ${keyring_location}
curl -1sLf 'https://dl.cloudsmith.io/public/ultimaker/debian-backup/config.deb.txt?distro=debian&codename=buster&component=main' > /etc/apt/sources.list.d/ultimaker-debian-backup.list
sudo chmod 644 ${keyring_location}
sudo chmod 644 /etc/apt/sources.list.d/ultimaker-debian-backup.list
apt-get update
sudo apt-get install zerofree=1.1.1-1
Warning: Note that this package is for Debian 10 (Buster) / armhf and may only work for that configuration.
Still stuck? Need help? Don't panic. Just contact us for help (even if you're not a customer).
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