v2025.11_31_x86-64_0.42

Buildroot Version	Kernel Version	Shredos Minor version	Architecture	Nwipe Version
2025.11	6.18.0	31	x86-64 and i686	0.42

Other software versions used within ShredOS for disc related operations

hexedit	hdparm	Smartctl	Sg3_Utils	nvme-cli	openSeaChest
1.6	9.65	7.5	1.48	2.15	25.05.3

ShredOS Lite vs. Full: System RAM Requirements

ShredOS now offers Lite versions for both x86-64 (64-bit) and i686 (32-bit) architectures, specifically designed for low-resource hardware.

Memory Requirements:

Lite Versions: Boot successfully with just 512MB of RAM.
Standard Versions: Requires a minimum of 2GB of RAM to run properly.

Notable changes in this release - ShredOS

Changes were made so that the user's own logo jpg, for use on the PDFs can be stored on the USB flash drive in /etc/nwipe/logo.jpg. Thanks @PartialVolume see #501 and #503
the logfile nwipe_log...txt is now always created with a new time stamped file name, when the option to restart nwipe (spacebar) is used. Thanks @PartialVolume
Lots of updates to documentation. See automated summary below. Thanks @PartialVolume & @Extloga

Notable New Features in this release - Nwipe

Added user created logo.jpg to PDFs

Allow the user to use their own logo in place of the nwipe embedded logo on the system and disc PDF certificates.

Thanks to @PartialVolume martijnvanbrummelen/nwipe#767

Added optional blank pages between sections for duplex printing

Add intentionally blank pages as necessary ( --pdfduplex) to end a specific section within the system and disc PDF certificates, so that the new section always starts on a fresh sheet.

Thanks to @PartialVolume martijnvanbrummelen/nwipe#761

Page numbering page n of n on system focused PDF

Add page n of n to the right hand footer section of the system focused PDF due to it's larger number of pages when wiping multiple discs simultaneously.

Thanks to @PartialVolume martijnvanbrummelen/nwipe#766

Show disc I/O retries on single disk & system focused PDF certificates

Thanks to @PartialVolume martijnvanbrummelen/nwipe#762

Show warning icon on single disc and system PDFs when a disc records retries indicating I/O errors**

Although the disc may have been successfully erased, a warning is now indicated on the PDF certificates to indicate the disc may not be in the best condition. If a warning icon is shown on the PDF, checks the report for retries and consult the smart data to see what may be failing on the drive.

Thanks @PartialVolume martijnvanbrummelen/nwipe#763

Updated the pdf generation library (PDFGen)

Updated nwipe's build in PDF generation library, specifically to include a new function pdf_add_line_pattern(). This function is required for the new speed profile graph in this release.

Thanks @PartialVolume martijnvanbrummelen/nwipe#772

Added a speed profile page to both the single disk and system focused PDF certificates.

The speed profile page shows a graph of minimum, maximum and average speeds over the duration of the disk erasure. It is a good visual diagnostic tool to identify anomalies in disc performance. See martijnvanbrummelen/nwipe#775 for examples of speed profiles for both good and bad drives.

The example below shows a drive with read performance issues but despite the degradation of read performance the drive doesn't issue any I/O errors, no retries occur and the smart data provides a status of 'PASSED'. So the speed profile may show performance deviations that are not obvious when looking at the smart data or relying on I/O errors to identify a faulty drive.

Thanks @PartialVolume martijnvanbrummelen/nwipe#773, martijnvanbrummelen/nwipe#774, martijnvanbrummelen/nwipe#776, martijnvanbrummelen/nwipe#777

Added (R) Reverse, (S) Scatter suffixes to method as shown on PDF

When performing a reverse or scatter wipe, the PDF's will now show this by placing a (R) or (S) after the method type.

Thanks @PartialVolume martijnvanbrummelen/nwipe#778

Fixes

Fixed mount-check to include and check for slave/parent devices in regards to [In-Use] feature.

Thanks to @Knogle martijnvanbrummelen/nwipe#759 martijnvanbrummelen/nwipe#757

Fixed a segfault that occurs under a rare set of circumstances

Fixed a rare segfault that occurs when -v (verbose) logging is enabled and a system includes a /dev/mapper or LUKS device. Nwipe would incorrectly attempt to retrieve DCO information from the /dev/mapper or LUKS device. -v mode would normally only be used for developer use and debugging.

Thanks to @PartialVolume martijnvanbrummelen/nwipe#760

Various typographical corrections

Thanks to @Extloga martijnvanbrummelen/nwipe#765

Updates to nwipe help (--help) and man page

Thanks to @PartialVolume martijnvanbrummelen/nwipe#771

Fixed overlapping disk throughput on PDFs when four numeric characters are dislayed e.g. 3100 MB/S