Stamp v1.6.0

Stamp now has packages for more Linux distributions and is MIT licensed.

• Fedora: new .rpm package.
• Debian 12+: the .deb now installs on Debian as well as on Ubuntu 22.04+.
• Arch: new stamp-sd package, built with makepkg from the repo for now (it isn't on the AUR yet). It's named stamp-sd because the AUR's stamp is a different app; the two can't be installed side by side.
• Stamp is now released under the MIT license.
• macOS and Windows: unchanged apart from the version number.

Note: the Windows app isn't code-signed yet, so SmartScreen warns about an unknown publisher the first time. Choose "More info" → "Run anyway".

Install

Windows 10/11 (x64): download Stamp-1.6.0-win-x64.exe and run it.

macOS 14+: download Stamp-1.6.0.dmg, open it and drag Stamp into Applications.

Ubuntu 22.04+ / Debian 12+:

wget https://github.com/ugurcaneser/stamp/releases/download/v1.6.0/stamp_1.6.0_all.deb
sudo apt install ./stamp_1.6.0_all.deb

Fedora:

sudo dnf install https://github.com/ugurcaneser/stamp/releases/download/v1.6.0/stamp-1.6.0-1.noarch.rpm

Arch:

git clone https://github.com/ugurcaneser/stamp.git
cd stamp/packaging/arch && makepkg -si

SHA-256:

• Stamp-1.6.0-win-x64.exe: 69a269e6af2a58e5c6a5483d166579acc411d1f942896ce239d8da19aacee073
• Stamp-1.6.0.dmg: 4760bd7f988b12c4c7a44b45a877cc6f2d8c4bc8c22428e8a68b77cec3547c76
• stamp_1.6.0_all.deb: e8145a0b6a6d3a6e828559305c1452dc878298344443321e7397025d528675b4
• stamp-1.6.0-1.noarch.rpm: fc8fa33cadb4f67dfcd2c022c0de77b48ee51deadbed00d0096cf40d42fce574

Stamp v1.5.1

A small packaging release for Ubuntu.

• Ubuntu: the PolicyKit actions are now com.ugurcaneser.stamp.format-fat32 and com.ugurcaneser.stamp.format-fat32-unrestricted (previously a placeholder org.example.stamp prefix). Upgrading replaces the old policy file automatically. Behaviour is unchanged: removable cards still format without a password, the non-removable override still asks for one.
• Ubuntu: the package now lists a real maintainer.
• macOS and Windows: unchanged apart from the version number.

Note: the Windows app isn't code-signed yet, so SmartScreen warns about an unknown publisher the first time. Choose "More info" → "Run anyway".

Install

Windows 10/11 (x64): download Stamp-1.5.1-win-x64.exe and run it.

macOS 14+: download Stamp-1.5.1.dmg, open it and drag Stamp into Applications.

Ubuntu:

wget https://github.com/ugurcaneser/stamp/releases/download/v1.5.1/stamp_1.5.1_all.deb
sudo apt install ./stamp_1.5.1_all.deb

SHA-256:

• Stamp-1.5.1-win-x64.exe: f49bd29fb80ec82c202baeef1d34bac771116f9496e182b90153434b47c2e1f7
• Stamp-1.5.1.dmg: c427781420a14535a4a96e04e775ad31e6398e927fb228d4ab04fe4e381e599a
• stamp_1.5.1_all.deb: 066b9e13740514af9c56837eaa9c4eaf911a234d38fbfe5aa9b6e4afe5f03d35

Stamp v1.5.0

Stamp now runs on Windows too: a native app with the same simple three-step window and the same safety rules as the macOS and Ubuntu builds.

• New Windows 10/11 app: pick a card, pick a zip, name it, confirm once. Stamp erases the card as FAT32 (also above 32 GB, which Windows' own tools refuse), copies the zip's contents and ejects the card.
• Stamp writes the FAT32 file system itself; diskpart only creates the partition table. Formatted volumes pass fsck.fat and Windows' chkdsk, and CI runs the whole Windows flow against a 40 GB virtual disk on every change.
• Asks for administrator rights once at launch (needed for raw disk access).
• The disk Windows runs from and virtual disks are never listed. Disks not marked removable need an explicit confirmation. The card is re-checked right before erasing and refused if it was swapped.
• The zip is checked and extracted before anything is erased. Symlinks are skipped, and the app warns about files of 4 GB or more (FAT32's limit).
• One self-contained .exe, no .NET install needed.
• macOS and Ubuntu: unchanged apart from the version number.

Note: the Windows app isn't code-signed yet, so SmartScreen warns about an unknown publisher the first time. Choose "More info" → "Run anyway".

Install

Windows 10/11 (x64): download Stamp-1.5.0-win-x64.exe and run it.

macOS 14+: download Stamp-1.5.0.dmg, open it and drag Stamp into Applications.

Ubuntu:

wget https://github.com/ugurcaneser/stamp/releases/download/v1.5.0/stamp_1.5.0_all.deb
sudo apt install ./stamp_1.5.0_all.deb

SHA-256:

• Stamp-1.5.0-win-x64.exe: a8d052fffd3ec93f24473dd45abb5c35886e0b5fa516a3f201e924de6dc417fa
• Stamp-1.5.0.dmg: 6a1b817f7531c7513229c8b3da0cffd1bdf300517e79031b8c57d6f261147edc
• stamp_1.5.0_all.deb: 1ec327dd18e60df30a738fc2540a65fbf71d9c21819605937dae557e2f18d400

Stamp v1.4.0

Stamp now has its own icon and a simpler, clearer window on both macOS and Ubuntu.

• New app icon, shown in the Dock/Launchpad on macOS and in the GNOME app grid and window on Ubuntu.
• The main window is three numbered steps: choose a card, choose a zip, name the card. A hint next to the single Format & Copy button says what's still missing.
• Drag a zip file onto the window to pick it.
• The confirmation dialog shows the card, the zip and the name at a glance before anything is erased.
• The progress screen lists each phase; the raw log moved under a collapsible "Details" section. It ends on a clear "Your card is ready" or error screen.
• Ubuntu: the radio button of an auto-selected card now shows as checked.
• Ubuntu: the GTK app ID and desktop file are now com.ugurcaneser.Stamp.

Note: the erase/copy path on both platforms is still only unit tested. Try it with a card you don't mind losing first.

Install

macOS 14+: download Stamp-1.4.0.dmg, open it and drag Stamp into Applications.

Ubuntu:

wget https://github.com/ugurcaneser/stamp/releases/download/v1.4.0/stamp_1.4.0_all.deb
sudo apt install ./stamp_1.4.0_all.deb

SHA-256:

• Stamp-1.4.0.dmg: 7a98ecc7181242028a64c9f5e99e5efa6e9f74f71328d5461ef44663f0b63e15
• stamp_1.4.0_all.deb: 1c9fe488a17b1ed980b226f35372bdb99ab31303b94c5bb2503919e891648a17

Stamp v1.3.0

This release adds a native macOS app. The Linux package is unchanged apart from the version number.

• New SwiftUI app for macOS 14+ with the same flow and safety rules as the Linux build: pick a card and a zip, confirm once, and Stamp erases the card as FAT32 (at any size), copies the zip's contents and ejects it.
• Uses diskutil directly, so there is no privileged helper and no password prompt.
• The zip is checked and extracted before the card is erased, so a bad zip never costs a wipe. The card is re-checked right before erasing and refused if it changed since confirmation.
• The boot disk, disks with system volumes and disk images are never offered.
• Files are copied without extended attributes, and the hidden files macOS puts on FAT volumes (._*, .Spotlight-V100, .Trashes, .fseventsd) are removed before ejecting.
• Signed with a Developer ID and notarized by Apple.

Note: the macOS erase/copy/eject path has been tested against recorded diskutil output only, not yet on a real card. Try it with a card you don't mind losing first.

Install

macOS: download Stamp-1.3.0.dmg, open it and drag Stamp into Applications.

Ubuntu:

wget https://github.com/ugurcaneser/stamp/releases/download/v1.3.0/stamp_1.3.0_all.deb
sudo apt install ./stamp_1.3.0_all.deb

SHA-256:

• Stamp-1.3.0.dmg: 16bb5648b5628f321cf243482fd0ac5e2ca1062a2274a966b3f0b6db0565edca
• stamp_1.3.0_all.deb: e1673cec015d6faa30d3000e5561aa6740bb89067bf13046c77d5e539819b0b7

Stamp v1.2.0

This release removes the password prompt from the normal formatting flow while keeping the hard safety blocks around system disks.

• Formats removable SD cards and USB drives without a password in the active local session.
• Keeps an admin password prompt for devices not marked removable, through a separate privileged helper.
• The privileged helper now verifies removability itself and refuses disks with anything mounted at a system path.
• Fixes mounting after the non-removable override, which could fail instead of asking for authorization.

Security trade-off: any program running in your desktop session can now format a removable device without asking. Remote and inactive sessions remain denied.

Install

wget https://github.com/ugurcaneser/stamp/releases/download/v1.2.0/stamp_1.2.0_all.deb
sudo apt install ./stamp_1.2.0_all.deb

SHA-256: f052251c247a5a2ea05ce858637bca2b8b6d90ec2388d90cef398c0e16690dfb

Stamp v1.1.0

This release streamlines the formatting flow while preserving the hard safety blocks around system disks.

• Uses one concise format summary instead of multiple warning dialogs.
• Removes device-path typing and the erase acknowledgement for removable devices.
• Keeps an explicit risk acknowledgement for devices not marked removable.
• Adds automated tests, syntax checks, and Debian package validation in CI.

Install

wget https://github.com/ugurcaneser/stamp/releases/download/v1.1.0/stamp_1.1.0_all.deb
sudo apt install ./stamp_1.1.0_all.deb

SHA-256: c11cacaba3289d13ae7b5614c7309f739bd833d8adea1517fad81d24d2a2aeed

Stamp v1.0.2

Fixes another packaging dependency bug from v1.0.1: apt install still
failed, this time on policykit-1 | polkitd-pkexec — neither package name
exists on newer Ubuntu (confirmed on Ubuntu 26.04 "resolute" via
apt-cache policy on real hardware).

• Depends now use pkexec | policykit-1 and polkitd | policykit-1
  separately, matching how newer Ubuntu ships pkexec and polkitd as
  independent packages while older Ubuntu (22.04) still bundles both into
  policykit-1.

Install

wget https://github.com/ugurcaneser/stamp/releases/download/v1.0.2/stamp_1.0.2_all.deb
sudo apt install ./stamp_1.0.2_all.deb

Stamp v1.0.1

Fixes a packaging bug in v1.0.0: apt install failed with unsatisfiable
dependencies (gir1.2-udisks2-2.0, policykit-1).

• gir1.2-udisks2-2.0 -> gir1.2-udisks-2.0 (the GIR typelib namespace is
  "UDisks", not "UDisks2" -- the old name doesn't exist as a package).
• policykit-1 -> policykit-1 | polkitd-pkexec (Ubuntu 24.04+ replaced
  policykit-1 with polkitd/polkitd-pkexec).

Found by actually installing v1.0.0 on real Ubuntu hardware.

Install

wget https://github.com/ugurcaneser/stamp/releases/download/v1.0.1/stamp_1.0.1_all.deb
sudo apt install ./stamp_1.0.1_all.deb

Stamp v1.0.0

Initial release.

Formats a removable SD card or USB drive as FAT32 (forced, regardless of card
size — including >32GB cards that most stock GUI formatters refuse), and
copies a user-provided zip's contents onto it. GTK4 + libadwaita GUI plus a
stamp --cli scripting mode, targeting Ubuntu 22.04+/24.04+.

Install

sudo apt install ./stamp_1.0.0_all.deb

Requires: python3-gi, gir1.2-gtk-4.0, gir1.2-adw-1, policykit-1,
udisks2, parted, dosfstools, rsync (declared as package Depends, apt
will pull them in).

Usage

stamp                  # GUI
stamp --cli list       # list candidate removable devices
stamp --cli prepare --device /dev/sdb --zip firmware.zip --label BOOT

See README.md and ARCHITECTURE.md in the repo for the safety model and the
privilege-separation design (udisks2 D-Bus + a small pkexec-invoked helper
for the actual partition/mkfs.vfat -F 32 step).

Testing note: this was built and unit-tested (84 tests) outside a Linux
environment. The GUI was built and manually exercised against a real
GTK4/libadwaita runtime; the udisks2/pkexec/parted/mkfs.vfat path is
implemented per spec but has not yet been run end-to-end on real Ubuntu
hardware with a real card. See README's Development section before relying
on this in production.