Ubuntu Linux: View Boot Log

To view the boot log on an Ubuntu Linux system, you can use the dmesg command.

The dmesg command displays the messages that are generated by the kernel during the boot process. These messages can include information about the hardware and software components that are detected and initialized during boot, as well as any errors or warnings that occur during the boot process.

To view the boot log using the dmesg command, follow these steps:

1. Open a terminal window on the Ubuntu system.

2. Type the dmesg command and press Enter.

dmesg

3. The dmesg command will display the boot log messages in the terminal window.

By default, the dmesg command displays the boot log messages in chronological order, with the most recent messages at the bottom. You can use the less command or other tools to view the boot log messages in a more readable format.

For example, you can use the following command to view the boot log messages in a paged view:

dmesg | less

This will allow you to use the up and down arrow keys to scroll through the boot log messages, and the q key to exit the paged view.

You can also use the grep command to search for specific messages in the boot log. For example:

dmesg | grep -i error

This command will display only the messages that contain the word "error" in the boot log.

For more information on how to use the dmesg command to view the boot log on an Ubuntu Linux system, you can refer to the Ubuntu documentation or the Linux documentation.