Emdebian Crush 1.0 (lenny) released
February 14th, 2009
The Emdebian Project is very pleased to announce the
official release of two flavours of Embedded Debian - Emdebian Grip 1.0 and Emdebian Crush 1.0,
each based on Debian GNU/Linux version 5.0 (codenamed
after several years of constant development.
Emdebian GNU/Linux Crush 1.0 (based on Debian 5.0
The smallest Emdebian installation
Limitations of selecting Emdebian Crush 1.0:
- Crush 1.0 (lenny) is a developer-release, full support is expected in Crush 2.0 (squeeze).
- Support is only available for ARM in Crush 1.0 (lenny).
- No pre-built installation images - Crush supports customisation for each machine type and variant.
- Installing and maintaining Crush requires significant user involvement but provides complete flexibility to achieve the smallest installation sizes.
- Emdebian Crush requires Debian to build - using Debian derivatives or other GNU/Linux distributions is unsupported.
- Emdebian methods are Debian methods, so a knowledge of Debian packaging methods is also required.
- Uses glibc until uClibc can be reintroduced into Debian 6.0
- Some library packages in Crush 1.0 have had functionality (and therefore symbols) removed, so care is needed when building applications.
- Full release title:
- Emdebian GNU/Linux Crush 1.0 (based on Debian GNU/Linux 5.0 "lenny").
- Short release name:
- Emdebian Crush 1.0 (lenny)
- Common release names:
- Emdebian Crush or Crush (lenny)
Please use these names if promoting the releases elsewhere.
Grip and Crush are a play on words for the next Debian release -
squeeze. Emdebian will continue to use the Grip and Crush titles
for future releases and will continue to use the unstable, testing and
stable suite names. Future releases are intended to continue following
Debian in the codenames (lenny, squeeze etc.) and be tied firmly to
Debian release schedules.
More information: http://www.emdebian.org/crush/.
Features of Emdebian Crush 1.0
Busybox based root filesystem and cross-built packages
to support the G Palmtop Environment
based on GTK+2 or any workable package selection in-between. Kernels and
kernel modules are not provided directly but support exists to add
custom kernels to the installation tarballs. Packages are heavily
modified and then cross-built from Debian source packages - functional
changes do exist between Emdebian Crush and standard Debian. Emdebian
Crush 1.0 (based on Debian 5.0
lenny) is only available for
ARM - adding more architectures is non-trivial.
Debian GNU/Linux 5.0 (Lenny) includes the new ARM EABI port,
This new port provides a more efficient use of both modern and future
ARM processors. As a result, the old ARM port (arm) has now been
deprecated in Debian. Subsequent Crush releases will migrate to armel
instead of ARM and include i386, mips and mipsel. Powerpc support can be
considered, if there is sufficient interest.
Emdebian Crush does not support building packages on Crush itself, all work to develop packages for Crush must be done on a normal Debian machine using cross-building support provided by Emdebian. There is no migration path from Debian to Emdebian Crush due to functional changes in the core package set of standard Debian. In particular, the emdebian-tools package used to build packages for Crush cannot work on a machine already running Crush (or packages from Crush) because Crush does not include perl or perl scripts.
Installations of Emdebian Crush will require significant user involvement, images will not generally be available for direct download. Instead, each installation is customised from the available package set using the scripts in the emdebian-rootfs package and possibly a few custom packages cross-built using scripts in the emdebian-tools package.
Debian GNU/Linux 5.0
Lenny contains the emdebian-tools package
to allow Debian source packages to be cross-built and shrunk for Crush
and updates to emdebian-tools on lenny are available via Emdebian.
Users will need to customise Crush for their respective machines, including configuring the base system (including inittab and boot sequences, configuring and cross-building appropriate kernels and fitting the Crush root filesystem into existing installation methods.
This release includes numerous updated software packages, such as the X.Org 7.3, GNU Compiler Collection 4.3.2, Linux kernel version 2.6.26 and more than 700 other ready to use software packages. With the integration of X.org 7.3 the X server autoconfigures itself with most hardware.
For non native English speaking users the package management systems now support translated package descriptions which will automatically show the description of a package in the native language of the user if available.
Debian GNU/Linux is a free operating system, developed by more than a thousand volunteers from all over the world who collaborate via the Internet. Debian's dedication to Free Software, its non-profit nature, and its open development model make it unique among GNU/Linux distributions.
The Debian project's key strengths are its volunteer base, its dedication to the Debian Social Contract, and its commitment to provide the best operating system possible. Debian 5.0 is another important step in that direction.
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