Kernel & initrd

Kernel

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Kernels,

What ramfs,is anda rescueLinux systems are stored in the /boot directory,

Kernel?

initramfs - drivers to access the root file system at boot time

kernel - core operating system

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Check kernel version

uname -r

After installing a new kernel version, a server reboot is required.

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Which file in /boot is the kernel?

Typically, the kernel file itself (located within /boot) is prefaced with 'vmlinuz', for example:

vmlinuz-5.15.0-106-generic

Working on Linux systems, you may see systems with various kernels installed.

 

 

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initrd

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What is initrd?

initrd (initialisation RAM disk) is essentially a set of instructions used to load the kernel. initrd is stored temporarily in system memory whilst the kernel is loaded.

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