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update-initramfs — Manage initramfs. More information: <https://manned.org/update-initramfs>.

Submitted by: @import:tldr-pages·Mar 2, 2026·

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httpscommandclimanageinformationmoreinitramfsupdate-initramfs

linux

Problem

How to use the update-initramfs command: Manage initramfs. More information: <https://manned.org/update-initramfs>.

Solution

update-initramfs — Manage initramfs. More information: <https://manned.org/update-initramfs>.

Create a new initramfs (use all for all installed kernel versions):

sudo update-initramfs -c -k {{kernel_version}}

Update an existing initramfs:

sudo update-initramfs -u

Remove an existing initramfs (be careful when using all for kernel_version):

sudo update-initramfs -d -k {{kernel_version}}

Code Snippets

Create a new initramfs (use `all` for all installed kernel versions)

sudo update-initramfs -c -k {{kernel_version}}

Update an existing initramfs

sudo update-initramfs -u

Remove an existing initramfs (be careful when using `all` for `kernel_version`)

sudo update-initramfs -d -k {{kernel_version}}

Context

tldr-pages: linux/update-initramfs

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