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ShredOS
What it is
ShredOS is a small, free, open-source operating system that boots from external media and erases disks with nwipe. The project provides .img and .iso images for USB drives, CD/DVD, Ventoy, and virtual machines. It supports x86 PCs and servers, plus Intel-based Macs, with BIOS or UEFI booting. Nwipe offers multiple erasure methods and pseudo-random generators, configurable rounds, verification, and a final blanking pass. ShredOS can produce PDF erasure certificates and log files, including reports focused on an individual drive or the whole system. The image includes disk utilities such as smartmontools, hdparm, nvme-cli, sg3_utils, hexedit, and parallel. For automated workflows, the project documents unattended autonuke, PXE booting, persistent configuration, and custom scripts. Headless operation and an optional Telnet server are documented for systems with faulty or missing display hardware. Logs and PDFs can be transferred to FTP or TFTP servers; FTP does not encrypt data. Wiping irreversibly erases data, and writing the image to a USB drive overwrites its existing contents.
For and against
For
- Supports BIOS and UEFI booting
- Offers multiple erasure methods and verification
- Generates PDF certificates and log files
- Documents PXE booting and unattended workflows
Against
- Wiping irreversibly erases data
- Writing the image overwrites the USB drive
- FTP transfers do not encrypt data
The verdict
ShredOS provides bootable disk erasure with configurable nwipe methods, verification, and reports. Check the selected drive carefully before starting, and remember that writing the image erases the USB drive’s contents.
Who it suits
ShredOS suits people who need to erase disks from a bootable environment, including those managing x86 computers, servers, or Intel-based Macs. Its documented automation and reporting options may also suit repeat or unattended erasure workflows.
Plans and prices
ShredOS
Bootable disk erasure image · 32-bit and 64-bit builds
Read 9 Oct 2026 · github.com
On the record
- Automation
- The project documents unattended autonuke workflows, PXE booting, persistent configuration, and custom scripts.github.com · read 9 Oct 2026
- Boot media
- The project provides .img and .iso images for USB drives, CD/DVD, Ventoy, and virtual machines.github.com · read 9 Oct 2026
- Build
- ShredOS is built with Buildroot, and the repository documents building images from source.github.com · read 9 Oct 2026
- Download verification
- The quick-start instructions tell users to verify the image checksum listed in the release notes.github.com · read 9 Oct 2026
- Erasure options
- nwipe offers multiple erasure methods, pseudo-random generators, configurable rounds, verification, and a final blanking pass.github.com · read 9 Oct 2026
- Hardware
- ShredOS supports x86 PCs and servers, plus Intel-based Macs, with BIOS or UEFI booting.github.com · read 9 Oct 2026
- Headless use
- ShredOS documents headless operation and a user-enabled Telnet server for systems with faulty or missing display hardware.github.com · read 9 Oct 2026
- Included tools
- The image includes disk utilities such as smartmontools, hdparm, nvme-cli, sg3_utils, hexedit, and parallel.github.com · read 9 Oct 2026
- Limit
- Writing an image to a USB flash drive overwrites its existing contents.github.com · read 9 Oct 2026
- Network transfer
- The documentation describes sending logs and PDF files to FTP or TFTP servers, and warns that FTP does not encrypt data.github.com · read 9 Oct 2026
- Purpose
- ShredOS is a small bootable operating system for securely erasing disks with nwipe.github.com · read 9 Oct 2026
- Reports
- ShredOS can generate PDF erasure certificates and log files, including per-drive or system-focused certificates.github.com · read 9 Oct 2026
- Script security
- The project warns that fetching and running scripts as root is risky and should only be done over a secure private network.github.com · read 9 Oct 2026
- Security warning
- ShredOS warns that wiping irreversibly erases data and advises checking selected drives before starting.github.com · read 9 Oct 2026
