Two "BBC" recovery damaged Linux system
We can find the figure of Linuxcare Bootable Business Card (BBC) in many Linux system users. Its main role is to repair the Linux system.
- Development of Linuxcare BBC
In 1999, four employees of Linuxcare designed a Linux system boot disk, mainly used to damage the damaged system.
Save rescue. Since the software in the CD can be compressed very small, the size of the disc is like a business card. This type of disc has been a focus of many manufacturers in Linux commodity tour exhibitions. When the earliest version of Linuxcare BBC is released in LinuxWorld and Atlanta Linux showcase sites for free download, it has become one of the most software downloads in the world.
Since the birth of the initial Linuxcare BBC, the Linux world has changed, and the Linuxcare BBC has also changed. The initial Linuxcare BBC is now divided into two branches into Linuxcare Bootable Toolbox V2 and LNX-BBC Project V1.618. The four programmers originally developed Linuxcare BBC later left Linuxcare. With the help of other volunteers, they continue to study the source code to create a LNX-BBC program. In fact, LNX-BBC and Linuxcare no longer have any contact.
LINUXCARE has developed new software products according to BBC principles. It wants to build a module system so that the programmer can keep up with the BBC development process. In order to achieve this goal, Linuxcare has developed a new BBC, named Linuxcare Bootable Toolbox (LBT). They claim that Linuxcare bootable toolbox is not a general BBC, Linuxcare Bootable Toolbox V2 is a programmable version of BBC.
-BBC what is it?
It must be clear that both BBC is not the Linux kit used by the end user. They are just a tool in the hands of experience in Linux system administrators to recover damaged Linux systems.
The "rich experience" here has a deep meaning. For users who are unusual experience, the use of BBC's error can cause great damage to the target system. The role of BBC is to re-establish a self-contained, bootable system environment so that users can repair the damaged system. Most of the executable tool software in the BBC kit is a standard instruction chain, so the BBC is an error option when the user needs to respond to the normal running GUI tool.
Some people have used the old version of Linuxcare BBC to repair damaged boot programs, such as LILO and GRUB, mainly to reset and reinstall them, and the results are very successful. Users can also test the new hardware system using the BBC suite to understand the situation inside the device and quickly detect some basic components. BBC plays a vital role in some emergency backup or repair.
As is well known, when a computer does not function properly due to hard disk failure, it is usually necessary to copy the bad disc to solve the problem via the network to solve the problem. Some Linux advocates even think that using Linux technology to solve the problem of Windows systems is also very effective.
- Similarity
Today, the use of the two BBCs is close. When booting with two discs, the selection will be displayed on the screen. Typically, don't choose a direct text option, unless the user is determined to use the X-WINDOW system. Other options will call the frame buffer support to enable the user to enter the operating system you want. This technology can support existing operating systems.
After the operating system is activated, the user can initially log in according to the screen prompt. If the user wants to enter the X-WINDOW system, type the "startx" command. Both BBCs use the Blackbox window manager to effectively avoid the defects in BlackBox, and they all make the user customize the style of the desktop. -difference
There are some subtle differences in the two BBCs. When the user logs in to the LNX-BBC, it will see a text file, which mainly explains how some discs and important commands are used. Users can browse it at any time, just type the "Help" command.
It is a simple menu that the user sees after logging in to LBT. From this menu, users can choose to install or exit the disc, set up the network interface, enter the X-WINDOW system, install PCMCIA devices, and some basic functions. Users can also enter the diagnostic system called Albert. It provides users with system conditions in the current state, and make sure that you can provide more options for users. To re-enter after exiting the system, users only need to type "Menu" commands.
LNX-BBC usually divides all Linux partitions in a read-only mode in the startup state. If you want to modify the file, the user needs to re-divide the readable and write partition. The LBT does not default to set any hard drive partitions. However, users can quickly divide the hard disk partitions according to the partition points on the initial hard drive via the LBT menu. However, in some cases the user may accidentally delete these partition points. But don't worry, because these partition points are easy to recover.
In addition, there are some subtle differences in the X-WINDOW state. LBT uses Mozilla as a web browser, while LNX-BBC uses Browsex. The options in the Blackbox window manager are not the same in the Blackbox Window Manager. The LNX-BBC uses EthereAl tools to monitor the operation of Ethernet, which defaults to become two workspaces, and even three simple games so that users can spend time during testing. LBT is simpler, default is a single work area and a menu item, the latter consists of several xterm options, a calculator, a clock, and mozilla browser.
The LNX-BBC also includes Memtest86 tools, when the user machine's memory is unstable, it can play an unexpected role.
In summary, in addition to some subtle differences, the role of the two BBCs is almost the same. They can restore damaged Linux systems, which can quickly create a system environment for transferring files on the network. Users can operate hard drives and discs via this environment, run programs without considering the integrity of the original operating system.
