---
name: "update-tirfs"
section: "8"
platform: "linux"
package: "tiny-initramfs"
version: "0.1-6.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/update-tirfs"
---

# update-tirfs(8)

generate a tiny-initramfs image

## NAME

update-tirfs - generate a tiny-initramfs image

## SYNOPSIS

**update-tirfs** \[-k kernel-version\]

## DESCRIPTION

The **update-tirfs** script generates initramfs images that contains the tiny-initramfs *init* binary and place them in the standard Debian location so that the boot loader may find them. It will call [**mktirfs**(8)](/mktirfs/8.md) to create the actual image. When called, all initramfs images in */boot* for matching kernel versions will be replaced.

Please read */usr/share/doc/tiny-initramfs-core/README.md* for an overview of the use cases tiny-initramfs was designed for and the features it supports.

## OPTIONS

- **-k**, **--kernel-version=***kernel-version*

  **Which kernel version to generate the initramfs image for. By default,** **the special value** *all* **is assumed, which indicates that the initramfs image should be** **regenerated for all installed kernel versions.**

## CONFIGURATION

**If present, the configuration file**  */etc/tiny-initramfs/tiny-initramfs.conf* **can modify the behavior of** [**mktirfs**(8)](/mktirfs/8.md) **in how the initramfs image is constructed. Please refer to the** **documentation of the mktirfs** utility for details.

## EXAMPLE

```
Update all initramfs images:
        update-tirfs
Update the initramfs image for a specific kernel version:
        update-tirfs -k 4.2.0
```

## DEBIAN MAINTAINER SCRIPTS

Please do not call this utility from Debian maintainer scripts. Use the *update-initramfs* trigger instead, as that will not depend on the initramfs implementation.

## FILES

- /etc/tiny-initramfs/tiny-initramfs.conf

  If present, values in there will be used as defaults for the command line arguments of **mktirfs**.

- /usr/share/doc/tiny-initramfs-core/tiny-initramfs.conf.example

  An example configuration file that may be copied to the above location.

## SEE ALSO

[**mktirfs**(8)](/mktirfs/8.md)

## AUTHORS

Christian Seiler \<christian@iwakd.de\>