environment-variables.md

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title: Environment Variables
weight: 80

---

Environment Variables

This page documents the environment variables used in Lima.

LIMA_HOME

• Description: Specifies the Lima home directory.

• Default: ~/.lima

• Usage:

  export LIMA_HOME=~/.lima-custom
  lima
  

LIMA_INSTANCE

• Description: Specifies the name of the Lima instance to use.

• Default: default

• Usage:

  export LIMA_INSTANCE=my-instance
  lima uname -a
  

LIMA_SHELL

• Description: Specifies the shell interpreter to use inside the Lima instance.

• Default: User's shell configured inside the instance

• Usage:

  export LIMA_SHELL=/bin/bash
  lima
  

LIMA_TEMPLATES_PATH

• Description: Specifies the directories used to resolve template:// URLs.

• Default: $LIMA_HOME/_templates:/usr/local/share/lima/templates

• Usage:

  export LIMA_TEMPLATES_PATH="$HOME/.config/lima/templates:/usr/local/share/lima/templates"
  limactl create --name my-vm template://my-distro
  

LIMA_WORKDIR

• Description: Specifies the initial working directory inside the Lima instance.

• Default: Current directory from the host

• Usage:

  export LIMA_WORKDIR=/home/user/project
  lima
  

LIMA_SHELLENV_ALLOW

• Description: Specifies a comma-separated list of environment variable patterns to allow when propagating environment variables to the Lima instance with --preserve-env. When set, only variables matching these patterns will be passed through, completely overriding the default block list behavior. This feature only applies to Lima v2.0.0 or later.

• Default: unset (when using --preserve-env, all variables are propagated except those matching the block list patterns)

• Usage:

  export LIMA_SHELLENV_ALLOW="FPATH,XAUTHORITY,CUSTOM_*"
  limactl shell --preserve-env default
  

• Behavior:

  • Without --preserve-env: No environment variables are propagated (regardless of this setting)

  • With --preserve-env and LIMA_SHELLENV_ALLOW unset: All variables are propagated except those in the block list

  • With --preserve-env and LIMA_SHELLENV_ALLOW set: Only variables matching the allow patterns are propagated (block list is ignored)

• Note: Patterns support wildcards using * at the end (e.g., CUSTOM_* matches CUSTOM_VAR, CUSTOM_PATH, etc.).

LIMA_SHELLENV_BLOCK

• Description: Specifies a comma-separated list of environment variable patterns to block when propagating environment variables to the Lima instance with --preserve-env. Can either replace the default block list or extend it by prefixing with +. This feature only applies to Lima v2.0.0 or later.

• Default: A predefined list of system and shell-specific variables that should not be propagated:

  • Shell variables: BASH*, SHELL, SHLVL, ZSH*, ZDOTDIR, FPATH

  • System paths: PATH, PWD, OLDPWD, TMPDIR

  • User/system info: HOME, USER, LOGNAME, UID, GID, EUID, GROUP, HOSTNAME

  • Display/terminal: DISPLAY, TERM, TERMINFO, XAUTHORITY, XDG_*

  • SSH/security: SSH_*

  • Dynamic linker: DYLD_*, LD_*

  • Internal variables: _* (variables starting with underscore)

  See GetDefaultBlockList() for the complete list.

• Usage:

  # Replace default block list entirely (not recommended)
  export LIMA_SHELLENV_BLOCK="SECRET_*,PRIVATE_*"
  
  # Extend default block list (recommended)
  export LIMA_SHELLENV_BLOCK="+SECRET_*,PRIVATE_*"
  limactl shell --preserve-env default
  

• Note: Patterns support wildcards using * at the end (e.g., SSH_* matches SSH_AUTH_SOCK, SSH_AGENT_PID). Use the + prefix to add to the default block list rather than replacing it entirely. This variable only affects the --preserve-env flag behavior.

LIMACTL

• Description: Specifies the path to the limactl binary.

• Default: limactl in $PATH

• Usage:

  export LIMACTL=/usr/local/bin/limactl
  lima
  

LIMA_SSH_PORT_FORWARDER

• Description: Specifies to use the SSH port forwarder (slow) instead of gRPC (fast, previously unstable)

• Default: false (since v1.1.0)

• Usage:

  export LIMA_SSH_PORT_FORWARDER=false
  

• The history of the default value:

  Version	Default value
  v0.1.0	true, effectively
  v1.0.0	false
  v1.0.1	true
  v1.1.0	false

LIMA_USERNET_RESOLVE_IP_ADDRESS_TIMEOUT

• Description: Specifies the timeout duration for resolving the IP address in usernet.

• Default: 2 minutes

• Usage:

  export LIMA_USERNET_RESOLVE_IP_ADDRESS_TIMEOUT=5
  

_LIMA_QEMU_UEFI_IN_BIOS

• Description: Commands QEMU to load x86_64 UEFI images using -bios instead of pflash drives.

• Default: false on Unix like hosts and true on Windows hosts

• Usage:

  export _LIMA_QEMU_UEFI_IN_BIOS=true
  

• Note: It is expected that this variable will be set to false by default in future when QEMU supports pflash UEFI for accelerated guests on Windows.

_LIMA_WINDOWS_EXTRA_PATH

• Description: Additional directories which will be added to PATH by limactl.exe process to search for tools. It is useful, when there is a need to prevent collisions between binaries available in active shell and ones used by limactl.exe - injecting them only for the running process w/o altering PATH observed by user shell. Is is Windows specific and does nothing for other platforms.

• Default: unset

• Usage:

  set _LIMA_WINDOWS_EXTRA_PATH=C:\Program Files\Git\usr\bin
  

• Note: It is an experimental setting and has no guarantees being ever promoted to stable. It may be removed or changed at any stage of project development.

QEMU_SYSTEM_AARCH64

• Description: Path to the qemu-system-aarch64 binary.

• Default: qemu-system-aarch64 found in $PATH

• Usage:

  export QEMU_SYSTEM_AARCH64=/usr/local/bin/qemu-system-aarch64
  

QEMU_SYSTEM_ARM

• Description: Path to the qemu-system-arm binary.

• Default: qemu-system-arm found in $PATH

• Usage:

  export QEMU_SYSTEM_ARM=/usr/local/bin/qemu-system-arm
  

QEMU_SYSTEM_PPC64

• Description: Path to the qemu-system-ppc64 binary.

• Default: qemu-system-ppc64 found in $PATH

• Usage:

  export QEMU_SYSTEM_PPC64=/usr/local/bin/qemu-system-ppc64
  

QEMU_SYSTEM_RISCV64

• Description: Path to the qemu-system-riscv64 binary.

• Default: qemu-system-riscv64 found in $PATH

• Usage:

  export QEMU_SYSTEM_RISCV64=/usr/local/bin/qemu-system-riscv64
  

QEMU_SYSTEM_S390X

• Description: Path to the qemu-system-s390x binary.

• Default: qemu-system-s390x found in $PATH

• Usage:

  export QEMU_SYSTEM_S390X=/usr/local/bin/qemu-system-s390x
  

QEMU_SYSTEM_X86_64

• Description: Path to the qemu-system-x86_64 binary.

• Default: qemu-system-x86_64 found in $PATH

• Usage:

  export QEMU_SYSTEM_X86_64=/usr/local/bin/qemu-system-x86_64