DRACUT.CONF(5) dracut DRACUT.CONF(5) (NAME) dracut.conf - () dracut (SYNOPSIS) /etc/dracut.conf /etc/dracut.conf.d/*.conf /usr/lib/dracut/dracut.conf.d/*.conf /run/initramfs/dracut.conf.d/*.conf (DESCRIPTION) dracut.conf dracut . *.conf /run/initramfs/dracut.conf.d /usr/lib/dracut/dracut.conf.d /etc/dracut.conf.d . /etc/dracut.conf.d /usr/lib/dracut/dracut.conf.d . /etc/dracut.conf (override) . . '#' (comment) . dracut . .conf . (CONFIGURATION OPTIONS) add_dracutmodules+=" " dracut ( ) initramfs. /usr/lib/dracut/modules.d . force_add_dracutmodules+=" " dracut ( ) host-only . . omit_dracutmodules+=" " dracut ( ) initramfs. /usr/lib/dracut/modules.d . (Warning) dracut dracut . . dracutmodules+=" " dracut ( ) initramfs. /usr/lib/dracut/modules.d . dracut dracut . "add_dracutmodules" . ( ). add_drivers+=" " ( ) initramfs. ".ko" . force_drivers+=" " add_drivers modprobe . omit_drivers+=" " ( ) initramfs . ".ko" . drivers+=" " ( ) initramfs. ".ko" . dracut . "--add-drivers" . ( ). add_dlopen_features+=" :[,...] ... " pattern ( ) . "libsystemd-shared-*.so:idn,ip4tc" iptables systemd . pattern soname . omit_dlopen_features+=" :[,...] ... " pattern ( ) . dracut . add_dlopen_features . filesystems+=" " ( ) initramfs . drivers_dir="" . fw_dir+=" :[: ...] " ( ) (firmware). libdirs+=" [ ...] " ( ) . install_items+=" [ ...] " initramfs . remove_items+=" [ ...] " initramfs . file/dir (wildcard) ( glob(7)). : dracut . . install_optional_items+=" [ ...] " initramfs . compress="{cat|bzip2|lzma|xz|gzip|lzop|lz4|zstd|}" initramfs . . . initramfs . "cat" . compress_level_bzip2="{1-9}" bzip2 (=9). compress_level_gzip="{1-9}" gzip (=9). compress_level_lz4="{1-12}" lz4 (=9). compress_level_lzma="{0-9}" lzma (=9). compress_level_lzop="{1-9}" lzop (=9). compress_level_xz="{0-9}" xz (= xz). compress_level_zstd="{1-19}" zstd (=15). squash_compress="{}" squashfs mksquashfs. mksquashfs . squash initramfs . do_strip="{yes|no}" (strip) initramfs (=yes). aggressive_strip="{yes|no}" initramfs . "do_strip=yes" (=no). do_hardlink="{yes|no}" initramfs (=yes). prefix=" " initramfs. hostonly="{yes|no}" (Host-only): (=yes). hostonly_mode="{sloppy|strict}" host-only (=sloppy). host-only (sloppy) ( ) . (strict) . . hostonly_cmdline="{yes|no}" "yes" initramfs . hostonly="yes" "yes" . (=no) hostonly_nics+=" [[ ...]] " (NIC) initramfs. . persistent_policy="" . /dev/disk ( "by-uuid" "by-label") "mapper" /dev/mapper (=mapper). tmpdir="" . (Warning) chroot --fstab /etc/fstab . use_fstab="{yes|no}" /etc/fstab /proc/self/mountinfo (=no). add_fstab+=" " /etc/fstab initramfs. add_device+=" " initramfs . host-only resume swap LVM . mdadmconf="{yes|no}" /etc/mdadm.conf (=no). lvmconf="{yes|no}" /etc/lvm/lvm.conf (=no). fscks=" " fsck . : umount mount /sbin/fsck* xfs_db xfs_check xfs_repair e2fsck jfs_fsck btrfsck. ( ). nofscks="{yes|no}" fsck (=no). ro_mnt="{yes|no}" / /usr (=no). kernel_cmdline="parameters" . initrd . kernel_only="{yes|no}" (=no). no_kernel="{yes|no}" (=no). acpi_override="{yes|no}" (Caution) ! ACPI BIOS. Documentation/acpi/initrd_table_override.txt . ACPI ( .aml ) acpi_table_dir= ( ) cpio . cpio cpio (concatenated ). cpio ( decompress ) ACPI (=no). acpi_table_dir="" ACPI acpi_override= yes . early_microcode="{yes|no}" (=yes). stdloglvl="{0-6}" (stderr) (=3). . (Logging Levels) +--+-----------------------------------+ |0 | | | | | | | | +--+-----------------------------------+ |1 | | | | (fatal) | +--+-----------------------------------+ |2 | | +--+-----------------------------------+ |3 | | +--+-----------------------------------+ |4 | (info) | +--+-----------------------------------+ |5 | | | | | | | ( | | | | | | ) | +--+-----------------------------------+ |6 | | | | (trace | | | | | | ) | +--+-----------------------------------+ sysloglvl="{0-6}" syslog (=0). fileloglvl="{0-6}" (logfile) (=4). logfile="" (logfile). sshkey="" SSH ssh-client. show_modules="{yes|no}" (=no). i18n_vars="" . dracut/modules.d/10i18n/README . i18n_default_font="" . "eurlatgr" . i18n_install_all="{yes|no}" (=no). reproducible="{yes|no}" (reproducible) (=no). noimageifnotneeded="{yes|no}" host-only /etc/cmdline/*.conf initramfs (=no). loginstall="" . uefi="{yes|no}" initramfs dracut UEFI BIOS UEFI (=no). : /EFI/Linux/linux-$kernel$--.efi. ESP /efi /boot /boot/efi . BUILD_ID /usr/lib/os-release /etc/os-release BUILD_ID . machine_id="{yes|no}" UEFI (=yes). uefi_stub="" UEFI initramfs . : /lib/systemd/boot/efi/linux.efi.stub. uefi_splash_image="" (splash) UEFI . (.bmp) . uefi_secureboot_cert="", uefi_secureboot_key="" UEFI . sbsign . uefi_secureboot_engine="parameter" UEFI "pkcs11". kernel_image="" UEFI . /lib/modules//vmlinuz /boot/vmlinuz- . sbat="parameters" SBAT UEFI . SBAT : sbat,1,SBAT Version,sbat,1,https://github.com/rhboot/shim/blob/main/SBAT.md. enhanced_cpio="{yes|no}" dracut-cpio (copy-on-write) (=no). initramfs (pad) . reflink compress="cat" do_strip="no" initramfs tmpdir . parallel="{yes|no}" yes ( --regenerate-all ). initrdname="" initramfs . initrdname initr*${kernel}* initramfs . : initramfs-${kernel}.img. dracut_rescue_image="{yes|no}" kernel-install (rescue image) (=no). kernel-install . (FILES) /etc/dracut.conf . /etc/dracut.conf.d/ . /etc/dracut.conf.d/ /etc/dracut.conf.d/*.conf /etc/dracut.conf . . 50-59 . (AUTHOR) Harald Hoyer (SEE ALSO) dracut(8), dracut.cmdline(7) dracut 2026-05-13 DRACUT.CONF(5)