Linux Boot Process Explained | MBR vs GPT | Part -22 | SN Linux

Learn how your computer starts up! From the initial hardware checks to loading the operating system, we break down the booting process into simple steps:

POST: Hardware self-check and BIOS/UEFI setup.
Bootloader: BIOS/UEFI finds and loads the bootloader.
Bootloader Execution: Loads the OS kernel into memory.
OS Loading: OS initializes, loads drivers, and starts services.
System Ready: User login and applications begin.
Troubleshooting MBR Issues: Facing problems with your boot process? Here’s how to troubleshoot MBR (Master Boot Record) issues:

Check your BIOS/UEFI boot order.
Repair MBR using bootrec /fixmbr (Windows).
Run disk health checks with chkdsk.
Rebuild MBR if necessary.
Restore from a backup if repairs don’t work.
MBR vs GPT: Understand the difference between MBR (Master Boot Record) and GPT (GUID Partition Table):

MBR: Supports up to 4 partitions, up to 2 TB disks, and has single-copy boot data. Compatible with older BIOS systems.
GPT: Supports up to 128 partitions (Windows), larger than 2 TB disks, and multiple copies of boot data for redundancy. Required for modern UEFI systems.

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Great video, I would love to see this 22 part series but here title should have been part-2