---
name: "t-rex"
section: "1"
platform: "linux"
package: "delo"
version: "0.8-2.6"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/t-rex"
---

# t-rex(1)

create TFTP bootable ECOFF images for DECstations with REX firmware

## NAME

t-rex - create TFTP bootable ECOFF images for DECstations with REX firmware

## SYNOPSIS

**/usr/bin/t-rex** -k *kernel* -r *ramdisk* \[-l *loader*\] \[-o *outfile*\]

## DESCRIPTION

**t-rex** creates a bootable ECOFF image for a DECstation from a kernel in ELF  format and a (compressed) ramdisk image. After the image has been booted, the t-rex loader moves kernel and ramdisk to their appropriate memory locations and starts the kernel with the ramdisk as root  filesystem. This is done by providing the kernel with the ramdisk start address **rd\_start=** and the ramdisk size **rd\_size=** as kernel commandline parameters.

Kernels generated from the Debian kernel-patch-\*-mips package  support this way of parameter passing, upstream kernels might  need a patch.

## OPTIONS

- **-k** *kernel*

  The ELF kernel image to use.

- **-r** *ramdisk*

  The gzip-compressed ramdisk image to use.

- **-l** *loader*

  The loader binary to use in creating the image. The default loader is /usr/lib/delo/t-rex-loader.

- **-o** *outfile*

  The name of the ECOFF image to create. Without this parameter, the resulting image is output on **stdout**.

## AUTHORS

Thiemo Seufer \<seufer@csv.ica.uni-stuttgart.de\>\
 Manpage written by Karsten Merker \<merker@debian.org\>