+_DRACUT_LDCONFIG_::
+ sets the _ldconfig_ program path and options. Optional.
+ Used for **--sysroot**.
++
+Default:
+ _ldconfig_
+
+_DRACUT_LDD_::
+ sets the _ldd_ program path and options. Optional.
+ Used for **--sysroot**.
++
+Default:
+ _ldd_
+
+_DRACUT_TESTBIN_::
+ sets the initially tested binary for detecting library paths.
+ Optional. Used for **--sysroot**. In the cross-compiled sysroot,
+ the default value (_/bin/sh_) is unusable, as it is an absolute
+ symlink and points outside the sysroot directory.
++
+Default:
+ _/bin/sh_
+
+_DRACUT_INSTALL_::
+ overrides path and options for executing _dracut-install_ internally.
+ Optional. Can be used to debug _dracut-install_ while running the
+ main dracut script.
++
+Default:
+ _dracut-install_
++
+Example:
+ DRACUT_INSTALL="valgrind dracut-install"
+
+_DRACUT_COMPRESS_BZIP2_::
+_DRACUT_COMPRESS_BZIP2_::
+_DRACUT_COMPRESS_LBZIP2_::
+_DRACUT_COMPRESS_LZMA_::
+_DRACUT_COMPRESS_XZ_::
+_DRACUT_COMPRESS_GZIP_::
+_DRACUT_COMPRESS_PIGZ_::
+_DRACUT_COMPRESS_LZOP_::
+_DRACUT_COMPRESS_ZSTD_::
+_DRACUT_COMPRESS_LZ4_::
+_DRACUT_COMPRESS_CAT_::
+ overrides for compression utilities to support using them from
+ non-standard paths.
++
+Default values are the default compression utility names to be found in **PATH**.
+
+_DRACUT_ARCH_::
+ overrides the value of **uname -m**. Used for **--sysroot**.
++
+Default:
+ _empty_ (the value of **uname -m** on the host system)
+
+_SYSTEMD_VERSION_::
+ overrides systemd version. Used for **--sysroot**.
+
+_DRACUT_INSTALL_PATH_::
+ overrides **PATH** environment for **dracut-install** to look for
+ binaries relative to **--sysroot**. In a cross-compiled environment
+ (e.g. Yocto), PATH points to natively built binaries that are not
+ in the host's /bin, /usr/bin, etc. **dracut-install** still needs plain
+ /bin and /usr/bin that are relative to the cross-compiled sysroot.
++
+Default:
+ _PATH_
+
+_DRACUT_INSTALL_LOG_TARGET_::
+ overrides **DRACUT_LOG_TARGET** for **dracut-install**. It allows
+ running **dracut-install* to run with different log target that
+ **dracut** runs with.
++
+Default:
+ _DRACUT_LOG_TARGET_
+
+_DRACUT_INSTALL_LOG_LEVEL_::
+ overrides **DRACUT_LOG_LEVEL** for **dracut-install**. It allows
+ running **dracut-install* to run with different log level that
+ **dracut** runs with.
++
+Default:
+ _DRACUT_LOG_LEVEL_
+