---
name: "ltsp-update-kernels"
section: "8"
platform: "linux"
package: "ltsp-server"
version: "5.18.12-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/ltsp-update-kernels"
---

# ltsp-update-kernels(8)

copy LTSP chroot kernels to TFTP directories

## NAME

ltsp-update-kernels - copy LTSP chroot kernels to TFTP directories

## SYNOPSIS

**ltsp-update-kernels** \[*OPTION*\] \[*CHROOT*...\]

## DESCRIPTION

Copies the boot/ directory from LTSP chroots to the TFTP directories in order to make them available to PXE clients. Copying kernels from inside NBD images is also supported. CHROOT can be a fullpath or a subdirectory of the base directory, and if it's unset, all available chroots are processed.

## OPTIONS

- **-b**, **--base**\[=*PATH*\]

  The LTSP base directory. Defaults to */opt/ltsp* if unspecified.

- **-h**, **--help**

  Displays the ltsp-update-kernels help message.

- **--version**

  Output version information and exit.

## AVAILABILITY

Part of the **ltsp** package and the latest versions are available in source form from  *https://launchpad.net/products/ltsp*.

## FILES

*/etc/ltsp/\<tool\>.conf*: Upon execution the tool will read a configuration file to override built-in defaults.

Values are NAME="VALUE" pairs, with # representing commented lines. most commandline options have an equivalent. an example Debian based system with an alternate base location, architecture, and distribution:

 \# set alternate default location for ltsp chroot (--base)\
  BASE="/srv/ltsp"\
  \# build an amd64 chroot by default (--arch)\
  ARCH="amd64"\
  \# build a Debian sid environment (--dist)\
  DIST="sid"

*/etc/ltsp/ltsp-server.conf*: Each LTSP server tool will read a generic configuration file. This file is typically used for setting BASE, TFTP\_DIRS and TFTP\_BOOT\_DIR. These settings are overwritten by those set in specific tool configs.

## AUTHOR

Autogenerated from the script source code with **help2man**. Distributed under the terms of the GNU General Public License version 2 or any later version.

## REPORTING BUGS

Report bugs to *https://bugs.launchpad.net/ltsp*.

## SEE ALSO

[**ltsp-build-client**(8)](/ltsp-build-client/8.md), [**ltsp-update-image**(8)](/ltsp-update-image/8.md), [**ltsp-update-sshkeys**(8)](/ltsp-update-sshkeys/8.md)