All of the following operations could potentially cause irreversible damage to your data or system. Please ensure you fully understand the purpose and potential impact of each action before proceeding. You are responsible for any consequences of your actions. This article only provides some ideas and information and is not intended as professional guidance.
What is a Live System?
Many people may not be familiar with live systems. Some may have heard of it but never used it, feeling that live systems are difficult to access (for example, currently, accessing the live system in deepin is not straightforward). Some may not know what it is used for. However, in the Windows environment, we may have heard of WINPE, which is a system that can be used for repairs. In the Linux community, we also have such systems, referred to here as live systems.
A live system is an operating system based on bootable media (such as a CD, USB drive, or DVD) that can run directly from the media without being installed on the computer's hard drive. This means you can insert a live system into your computer and boot from the media without making any changes to your computer.
Live systems are usually used for demonstrations, testing, system recovery, and temporary operations. They provide an independent and isolated operating environment that does not affect the already installed operating system and data on the computer. You can access the operating system’s features and applications, including file management, internet access, office suites, multimedia players, and more within the live system.
With the above introduction, you should now have a basic understanding of live systems.
When Do I Use It?
In general, I rarely have the opportunity to use it. I’ve never encountered any major problems when using the deepin system daily. Even if there are issues, I can quickly resolve them with the help of development team members. Therefore, I haven’t had much chance to use it over the years.
My Understanding of a Live System:
A live system is an operating system running independently on a USB drive, not relying on the computer’s hard drive (the live system loads directly from the USB into memory). At this point, the hard drive on your computer is completely exposed to the live system, allowing you to freely manipulate the data on it. This can help resolve scenarios where you cannot operate on the disk while logged into the system.
Additionally, you can also use the live system to fix some system issues.
Things You Can Do with a Live System:
Expand disk space
Change account passwords (don’t use this for bad purposes!)
Repair the system
Another Introduction to the Basic Use of a Live System
Getting a Live System
This time, I won’t be using the built-in live system in deepin. I’ll use resources provided by a forum member for demonstration. You can download the live system from the provided link, or access the link I’ve saved.
You can directly use the built-in live system in deepin. Refer to the methods in the tutorials on disk expansion or password modification (again, don’t use this for bad purposes!) for guidance on how to enter the live system.
Entering the Live System
If you are using a third-party live system, you can enter the interface below by booting directly from the USB drive using Ventoy:
If you are using the built-in ISO from deepin, you can follow these steps to enter:
Prepare a bootable USB drive with the deepin ISO (Ventoy is recommended).
Boot into the system installation interface.
The only difference is that in the GRUB installation screen, don’t select any options. Instead, press the “E” key (if it’s not EFI boot, you may need to press the TAB key).
After pressing the key, the following editing interface will appear. Use the arrow keys to navigate to the red box below and delete the cd-installer entry.
Animation Demonstration:
Scenario 1: Perform Disk Adjustments
In the live system provided by the user, the gparted application is pre-installed. However, after starting it, you might see that all disk partitions are locked and cannot be operated on:
At this point, you can close the gparted application, go to the file manager, and unmount the current partitions:
Then, restart the gparted application, and you will find the lock is gone:
Now you can happily perform various operations on the disk: resizing, compressing, partition moving, merging, etc. Feel free to handle it however you like.
Scenario 2: Change a User’s Password (Don’t Use This to Tamper with Someone Else’s Computer!) https://bbs.deepin.org/en/post/238135
中文 
deepin 23 internal testing update on December 20, 2024 
The following content is from @babyfengfjx.
Risk Warning
All of the following operations could potentially cause irreversible damage to your data or system. Please ensure you fully understand the purpose and potential impact of each action before proceeding. You are responsible for any consequences of your actions. This article only provides some ideas and information and is not intended as professional guidance.
What is a Live System?
Many people may not be familiar with live systems. Some may have heard of it but never used it, feeling that live systems are difficult to access (for example, currently, accessing the live system in deepin is not straightforward). Some may not know what it is used for. However, in the Windows environment, we may have heard of WINPE, which is a system that can be used for repairs. In the Linux community, we also have such systems, referred to here as live systems.
A live system is an operating system based on bootable media (such as a CD, USB drive, or DVD) that can run directly from the media without being installed on the computer's hard drive. This means you can insert a live system into your computer and boot from the media without making any changes to your computer.
Live systems are usually used for demonstrations, testing, system recovery, and temporary operations. They provide an independent and isolated operating environment that does not affect the already installed operating system and data on the computer. You can access the operating system’s features and applications, including file management, internet access, office suites, multimedia players, and more within the live system.
With the above introduction, you should now have a basic understanding of live systems.
When Do I Use It?
In general, I rarely have the opportunity to use it. I’ve never encountered any major problems when using the deepin system daily. Even if there are issues, I can quickly resolve them with the help of development team members. Therefore, I haven’t had much chance to use it over the years.
My Understanding of a Live System:
A live system is an operating system running independently on a USB drive, not relying on the computer’s hard drive (the live system loads directly from the USB into memory). At this point, the hard drive on your computer is completely exposed to the live system, allowing you to freely manipulate the data on it. This can help resolve scenarios where you cannot operate on the disk while logged into the system.
Additionally, you can also use the live system to fix some system issues.
Things You Can Do with a Live System:
Another Introduction to the Basic Use of a Live System
Getting a Live System
This time, I won’t be using the built-in live system in deepin. I’ll use resources provided by a forum member for demonstration. You can download the live system from the provided link, or access the link I’ve saved.
You can directly use the built-in live system in deepin. Refer to the methods in the tutorials on disk expansion or password modification (again, don’t use this for bad purposes!) for guidance on how to enter the live system.
Entering the Live System
If you are using a third-party live system, you can enter the interface below by booting directly from the USB drive using Ventoy:
If you are using the built-in ISO from deepin, you can follow these steps to enter:
cd-installerentry.Animation Demonstration:
Scenario 1: Perform Disk Adjustments
In the live system provided by the user, the
gpartedapplication is pre-installed. However, after starting it, you might see that all disk partitions are locked and cannot be operated on:At this point, you can close the
gpartedapplication, go to the file manager, and unmount the current partitions:Then, restart the
gpartedapplication, and you will find the lock is gone:Now you can happily perform various operations on the disk: resizing, compressing, partition moving, merging, etc. Feel free to handle it however you like.
Scenario 2: Change a User’s Password (Don’t Use This to Tamper with Someone Else’s Computer!) https://bbs.deepin.org/en/post/238135
Scenario 3: Repair System Boot
Do you have other usage scenarios? Feel free to leave a comment, and we can learn from each other.