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888d53f2 HH |
1 | DRACUT.CONF(5) |
2 | ============== | |
3 | :doctype: manpage | |
4 | :man source: dracut | |
5 | :man manual: dracut | |
6 | ||
7 | NAME | |
8 | ---- | |
9 | dracut.conf - configuration file(s) for dracut | |
10 | ||
11 | SYNOPSIS | |
12 | -------- | |
8b52e96f HH |
13 | _/etc/dracut.conf_ |
14 | _/etc/dracut.conf.d/\*.conf_ | |
ef9ddb91 | 15 | _/usr/lib/dracut/dracut.conf.d/*.conf_ |
888d53f2 HH |
16 | |
17 | Description | |
18 | ----------- | |
19 | _dracut.conf_ is loaded during the initialisation phase of dracut. Command line | |
85c8217d | 20 | parameter will override any values set here. |
c4e098a5 | 21 | |
ef9ddb91 HH |
22 | _*.conf_ files are read from /usr/lib/dracut/dracut.conf.d and |
23 | /etc/dracut.conf.d. Files with the same name in /etc/dracut.conf.d will replace | |
24 | files in /usr/lib/dracut/dracut.conf.d. | |
85c8217d | 25 | The files are then read in alphanumerical order and will override parameters |
ef9ddb91 | 26 | set in _/etc/dracut.conf_. Each line specifies an attribute and a value. A '#' |
888d53f2 HH |
27 | indicates the beginning of a comment; following characters, up to the end of the |
28 | line are not interpreted. | |
29 | ||
85c8217d | 30 | dracut command line options will override any values set here. |
c4e098a5 HH |
31 | |
32 | Configuration files must have the extension .conf; other extensions are ignored. | |
33 | ||
319867fa HH |
34 | *add_dracutmodules+=*" __<dracut modules>__ ":: |
35 | Add a space-separated list of dracut modules to call when building the | |
36 | initramfs. Modules are located in _/usr/lib/dracut/modules.d_. | |
37 | ||
888d53f2 HH |
38 | *dracutmodules+=*" __<dracut modules>__ ":: |
39 | Specify a space-separated list of dracut modules to call when building the | |
40 | initramfs. Modules are located in _/usr/lib/dracut/modules.d_. | |
319867fa HH |
41 | This option forces dracut to only include the specified dracut modules. |
42 | In most cases the "add_dracutmodules" option is what you want to use. | |
888d53f2 HH |
43 | |
44 | *omit_dracutmodules+=*" __<dracut modules>__ ":: | |
319867fa HH |
45 | Omit a space-separated list of dracut modules to call when building the |
46 | initramfs. Modules are located in _/usr/lib/dracut/modules.d_. | |
888d53f2 HH |
47 | |
48 | *drivers+=*" __<kernel modules>__ ":: | |
49 | Specify a space-separated list of kernel modules to exclusively include in | |
50 | the initramfs. The kernel modules have to be specified without the ".ko" | |
51 | suffix. | |
52 | ||
53 | *add_drivers+=*" __<kernel modules>__ ":: | |
54 | Specify a space-separated list of kernel modules to add to the initramfs. | |
55 | The kernel modules have to be specified without the ".ko" suffix. | |
56 | ||
cea907f6 TR |
57 | *force_drivers+=*" __<list of kernel modules>__ ":: |
58 | See add_drivers above. But in this case it is ensured that the drivers | |
59 | are tried to be loaded early via modprobe. | |
60 | ||
888d53f2 HH |
61 | *omit_drivers+=*" __<kernel modules>__ ":: |
62 | Specify a space-separated list of kernel modules not to add to the | |
63 | initramfs. The kernel modules have to be specified without the ".ko" suffix. | |
64 | ||
888d53f2 HH |
65 | *filesystems+=*" __<filesystem names>__ ":: |
66 | Specify a space-separated list of kernel filesystem modules to exclusively | |
67 | include in the generic initramfs. | |
68 | ||
69 | *drivers_dir=*"__<kernel modules directory>__":: | |
70 | Specify the directory, where to look for kernel modules | |
71 | ||
72 | *fw_dir+=*" :__<dir>__[:__<dir>__ ...] ":: | |
73 | Specify additional directories, where to look for firmwares, separated by : | |
74 | ||
75 | *install_items+=*" __<file>__[ __<file>__ ...] ":: | |
76 | Specify additional files to include in the initramfs, separated by spaces. | |
77 | ||
54b68829 HH |
78 | *install_optional_items+=*" __<file>__[ __<file>__ ...] ":: |
79 | Specify additional files to include in the initramfs, separated by spaces, | |
80 | if they exist. | |
81 | ||
7dbadcc7 | 82 | *compress=*"__{bzip2|lzma|xz|gzip|lzo|lz4|zstd|<compressor [args ...]>}__":: |
8b52e96f HH |
83 | Compress the generated initramfs using the passed compression program. If |
84 | you pass it just the name of a compression program, it will call that | |
85 | program with known-working arguments. If you pass arguments, it will be called | |
86 | with exactly those arguments. Depending on what you pass, this may result in | |
87 | an initramfs that the kernel cannot decompress. | |
88 | ||
888d53f2 HH |
89 | *do_strip=*"__{yes|no}__":: |
90 | Strip binaries in the initramfs (default=yes) | |
91 | ||
f4a94278 HH |
92 | *do_prelink=*"__{yes|no}__":: |
93 | Prelink binaries in the initramfs (default=yes) | |
94 | ||
888d53f2 | 95 | *hostonly=*"__{yes|no}__":: |
1d97bb8b AŻ |
96 | Host-Only mode: Install only what is needed for booting the local host |
97 | instead of a generic host and generate host-specific configuration. | |
888d53f2 | 98 | |
0ad2471c | 99 | *hostonly_cmdline=*"__{yes|no}__":: |
76dd870b | 100 | If set to "yes", store the kernel command line arguments needed in the initramfs |
ab9457ef | 101 | |
3411ad66 HH |
102 | *persistent_policy=*"__<policy>__":: |
103 | Use _<policy>_ to address disks and partitions. | |
104 | _<policy>_ can be any directory name found in /dev/disk. | |
105 | E.g. "by-uuid", "by-label" | |
106 | ||
4dd68ca4 AŻ |
107 | *tmpdir=*"__<temporary directory>__":: |
108 | Specify temporary directory to use. | |
109 | ||
888d53f2 HH |
110 | [WARNING] |
111 | ==== | |
ef9ddb91 HH |
112 | If chrooted to another root other than the real root device, use --fstab and |
113 | provide a valid _/etc/fstab_. | |
888d53f2 HH |
114 | ==== |
115 | ||
116 | *use_fstab=*"__{yes|no}__":: | |
117 | Use _/etc/fstab_ instead of _/proc/self/mountinfo_. | |
118 | ||
119 | *add_fstab+=*" __<filename>__ ":: | |
120 | Add entries of __<filename>__ to the initramfs /etc/fstab. | |
121 | ||
c586b033 CG |
122 | *add_device+=*" __<device>__ ":: |
123 | Bring up _<device>_ in initramfs, _<device>_ should be the device name. | |
124 | This can be useful in hostonly mode for resume support when your swap is on | |
125 | LVM an encrypted partition. | |
126 | ||
888d53f2 HH |
127 | *mdadmconf=*"__{yes|no}__":: |
128 | Include local _/etc/mdadm.conf_ (default=yes) | |
129 | ||
130 | *lvmconf=*"__{yes|no}__":: | |
131 | Include local _/etc/lvm/lvm.conf_ (default=yes) | |
132 | ||
133 | *fscks=*" __<fsck tools>__ ":: | |
134 | Add a space-separated list of fsck tools. If nothing is specified, the | |
135 | default is: "umount mount /sbin/fsck* xfs_db xfs_check xfs_repair e2fsck | |
136 | jfs_fsck reiserfsck btrfsck". The installation is opportunistic | |
137 | (non-existing tools are ignored). | |
138 | ||
139 | *nofscks=*"__{yes|no}__":: | |
140 | If specified, inhibit installation of any fsck tools. | |
141 | ||
a2b64e30 | 142 | *ro_mnt=*"__{yes|no}__":: |
ff3953ef AŻ |
143 | Mount _/_ and _/usr_ read-only by default. |
144 | ||
d20fb951 HH |
145 | *kernel_cmdline=*"__parameters__":: |
146 | Specify default kernel command line parameters | |
147 | ||
888d53f2 HH |
148 | *kernel_only=*"__{yes|no}__":: |
149 | Only install kernel drivers and firmware files. (default=no) | |
150 | ||
45845cb6 | 151 | *no_kernel=*"__{yes|no}__":: |
888d53f2 HH |
152 | Do not install kernel drivers and firmware files (default=no) |
153 | ||
45845cb6 | 154 | *acpi_override=*"__{yes|no}__":: |
4e93c3f7 TR |
155 | [WARNING] ONLY USE THIS IF YOU KNOW WHAT YOU ARE DOING! + |
156 | Override BIOS provided ACPI tables. For further documentation read | |
157 | Documentation/acpi/initrd_table_override.txt in the kernel sources. | |
158 | Search for ACPI table files (must have .aml suffix) in acpi_table_dir= | |
159 | directory (see below) and add them to a separate uncompressed cpio | |
160 | archive. This cpio archive gets glued (concatenated, uncompressed one | |
161 | must be the first one) to the compressed cpio archive. The first, | |
162 | uncompressed cpio archive is for data which the kernel must be able | |
163 | to access very early (and cannot make use of uncompress alogrithms yet) | |
164 | like microcode or ACPI tables (default=no). | |
165 | ||
166 | *acpi_table_dir=*"__<dir>__":: | |
167 | Directory to search for ACPI tables if acpi_override= is set to yes. | |
168 | ||
b7c770e1 DS |
169 | *early_microcode=*"{yes|no}":: |
170 | Combine early microcode with ramdisk (default=no) | |
171 | ||
888d53f2 HH |
172 | *stdloglvl*="__\{0-6\}__":: |
173 | Set logging to standard error level. | |
174 | ||
175 | *sysloglvl*="__\{0-6\}__":: | |
176 | Set logging to syslog level. | |
177 | ||
178 | *fileloglvl=*"__\{0-6\}__":: | |
179 | Set logging to file level. | |
180 | ||
181 | *logfile=*"__<file>__":: | |
182 | Path to log file. | |
183 | ||
184 | *show_modules=*"__{yes|no}__":: | |
c4e098a5 | 185 | Print the name of the included modules to standard output during build. |
888d53f2 | 186 | |
472928ec | 187 | *i18n_vars=*"__<variable mapping>__":: |
45845cb6 HH |
188 | Distribution specific variable mapping. |
189 | See dracut/modules.d/10i18n/README for a detailed description. | |
190 | ||
191 | *i18n_default_font=*"__<fontname>__":: | |
ef9ddb91 HH |
192 | The font <fontname> to install, if not specified otherwise. |
193 | Default is "LatArCyrHeb-16". | |
45845cb6 HH |
194 | |
195 | *i18n_install_all=*"__{yes|no}__":: | |
196 | Install everything regardless of generic or hostonly mode. | |
197 | ||
80626ded HH |
198 | *reproducible=*"__{yes|no}__":: |
199 | Create reproducible images. | |
200 | ||
37383f71 HH |
201 | *loginstall=*"__<DIR>__":: |
202 | Log all files installed from the host to _<DIR>_. | |
203 | ||
636d2d46 HH |
204 | *uefi_stub=*"_<FILE>_":: |
205 | Specifies the UEFI stub loader, which will load the attached kernel, initramfs and | |
206 | kernel command line and boots the kernel. The default is | |
207 | _/lib/systemd/boot/efi/linux<EFI-MACHINE-TYPE-NAME>.efi.stub_ | |
208 | or _/usr/lib/gummiboot/linux<EFI-MACHINE-TYPE-NAME>.efi.stub_ | |
209 | ||
210 | *kernel_image=*"_<FILE>_":: | |
211 | Specifies the kernel image, which to include in the UEFI executable. The default is | |
212 | _/lib/modules/<KERNEL-VERSION>/vmlinuz_ or _/boot/vmlinuz-<KERNEL-VERSION>_ | |
213 | ||
888d53f2 HH |
214 | Files |
215 | ----- | |
216 | _/etc/dracut.conf_:: | |
217 | Old configuration file. You better use your own file in | |
81b676a6 | 218 | _/etc/dracut.conf.d/_. |
888d53f2 | 219 | |
dece5ee1 | 220 | _/etc/dracut.conf.d/_:: |
85c8217d | 221 | Any _/etc/dracut.conf.d/*.conf_ file can override the values in |
888d53f2 HH |
222 | _/etc/dracut.conf_. The configuration files are read in alphanumerical |
223 | order. | |
224 | ||
225 | AUTHOR | |
226 | ------ | |
227 | Harald Hoyer | |
228 | ||
229 | See Also | |
230 | -------- | |
231 | *dracut*(8) *dracut.cmdline*(7) | |
232 |