2440 build a cross-compiling environment for Ubuntu (root permission), 2440 for ubuntu

2440 build a cross-compiling environment for Ubuntu (root permission), 2440 for ubuntu

1. Load the Mini2440-20130517.iso to the Ubuntu Optical Drive

2. Import the image to the optical disk and copy it to/home/muyang_ren (main directory) from arm-linux-gcc-4.4.3.tar.gz)

3. # su

4. # root Password

5. # cd/home/muyang_ren // This Is My directory. You may not find muyang_ren in the main folder.

6, # tar xvzf arm-linux-gcc-4.4.3.tar.gz-C // Note: C is followed by a space

7. Add the compiler path to the system environment variable and run the command
# Sudo gedit/root/. bashrc
Edit the/root/. bashrc file and add it in the last line:
Export PATH = $ PATH:/opt/FriendlyARM/toolschain/4.4.3/bin // opt/FriendlyARM/toolschain/4.4.3/bin is the environment variable
Save and exit.

# Source ~ /. Bashrc

8. # sudo gedit/etc/environment

Add tags after games

9. # arm-linux-gcc-v // there is a space behind gcc

How to build a cross-compilation environment in Ubuntu?

The following is a description of some problems, in order to attract others. The application development environment based on the Linux operating system is generally composed of the target system hardware (Development Board) and the host PC. The target hardware development board is used to run the operating system and system application software, the kernel compilation and application development and debugging of the operating system used by the target Board need to be completed through the host PC (therefore called cross-compilation ). Generally, the two parties establish a connection through a serial port, a parallel port, or an Ethernet interface. However, I suggest you build the following cross-compilation environment for individual or R & D teams to use: Use a single PC (PII or above, just use the old machines that have been eliminated before ), to install a Linux operating system (such as Red Hat Linux 8.0 or later) on the PC, you can use the default installation option (including the FTP service). This PC is used as a Linux server, in addition to the Administrator, it is generally not allowed to be operated by others directly. Connect the Linux server to the LAN and create some valid users so that the legitimate users of other PCs (referred to as workstation) can access the Linux server. Other PCs (workstations) still use the Windows operating system. Required software tools include: 1. FTP client programs (such as Cuteftp, which can be downloaded online ). 2. Telnet tool (such as SecureCRT, which can be downloaded from the Internet ). 3. source code of the Linux operating system kernel transplanted to a specific ARM platform (usually provided by the vendor ). 4. GNU compilation tools can be downloaded from related websites or provided by vendors. Install the FTP client program and Telnet tool on a PC of a workstation. After installation, you can transfer files between the PC and the Linux server of the workstation, you can also log on to the Linux server through Telnet on the workstation PC (you may need to disable the Firewall Service of the Linux Server ). Install On a Linux Server: transfer the Linux operating system kernel source code package on the PC of the workstation and the GNU compilation tool to a directory (such as a valid user directory) on the Linux server through FTP ), decompress the package in the directory and install the GNU compilation tool to the default working directory. The above work is done by using the Telnet tool on the workstation PC, instead of on the Linux server. Compiling the Linux operating system kernel: there is usually a fixed step for compiling the Linux operating system kernel, which may vary slightly depending on the MakeFile file. For details, refer to the relevant documentation, the compilation is completed on the workstation PC using the Telnet tool.

Ubuntu1204 cannot obtain the root permission

You can directly enter the sudo su command and press enter to prompt you to enter the password of the current account. after entering the password, you will find that the account becomes root.