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This option allows for the configuration of different installation methods using different formats. The syntax is described in the table below.
Installation Sources
|Installation source|Option format
|Any CD/DVD drive|[option]#inst.repo=cdrom#
|Specific CD/DVD drive|[option]#inst.repo=cdrom:pass:attributes[{blank}]_device_pass:attributes[{blank}]#
|Hard Drive|[option]#inst.repo=hd:pass:attributes[{blank}]_device_:/pass:attributes[{blank}]_path_pass:attributes[{blank}]#
|HTTP Server|[option]#inst.repo=http://pass:attributes[{blank}]_host_pass:attributes[{blank}]/pass:attributes[{blank}]_path_pass:attributes[{blank}]#
|HTTPS Server|[option]#inst.repo=https://pass:attributes[{blank}]_host_pass:attributes[{blank}]/pass:attributes[{blank}]_path_pass:attributes[{blank}]#
|FTP Server|[option]#inst.repo=ftp://pass:attributes[{blank}]_username_:pass:attributes[{blank}]_password_pass:attributes[{blank}]@pass:attributes[{blank}]_host_pass:attributes[{blank}]/pass:attributes[{blank}]_path_pass:attributes[{blank}]#
|NFS Server|[option]#inst.repo=nfs:[pass:attributes[{blank}]_options_:]pass:attributes[{blank}]_server_:/pass:attributes[{blank}]_path_pass:attributes[{blank}]#
footnote:[This option uses NFS protocol version 3 by default. To use a different version, add [option]#+nfsvers=pass:attributes[{blank}]_X_pass:attributes[{blank}]# to _options_.]
Disk device names may be specified using the following formats:
Kernel device name, for example `/dev/sda1` or `sdb2`
File system label, for example `LABEL=Flash` or `LABEL=RHEL7`
File system UUID, for example `UUID=8176c7bf-04ff-403a-a832-9557f94e61db`
Non-alphanumeric characters must be represented as `\xpass:attributes[{blank}]_NN_pass:attributes[{blank}]`, where _NN_ is the hexadecimal representation of the character. For example, `\x20` is a white space ("").
[option]#inst.stage2=#
Specifies the location of the installation program runtime image to be loaded. The syntax is the same as in xref:Boot_Options.adoc#tabl-boot-options-sources[Installation Sources]. This option expects a path to a directory containing a valid `.treeinfo` file; the location of the runtime image will be read from this file if found. If a `.treeinfo` file is not available, [application]*Anaconda* will try to load the image from `LiveOS/squashfs.img`.
By default, this boot option is used on the installation media and set to a specific label (for example, [option]#inst.stage2=hd:LABEL=F21\x20Server.x86_64#). If you modify the default label of the file system containing the runtime image, you must also edit this option to match the new label.
[option]#inst.stage2.all=#
With this boot option, the stage 2 image will be fetched from HTTP, HTTPS and FTP locations which are specified using the [option]#inst.stage2=# option sequentially in the order they are specified, until the image is successfully fetched. All other locations will be ignored.
[option]#inst.dd=#
If you need to perform a driver update during the installation, use the [option]#inst.dd=# option. It can be used multiple times. The location of a driver RPM package can be specified using any of the formats described in xref:Boot_Options.adoc#tabl-boot-options-sources[Installation Sources]. With the exception of the [option]#inst.dd=cdrom# option, the device name must always be specified. For example:
[option]#inst.dd=hd:/dev/sdb1:/driver.rpm#
Using this option without any parameters (only as [option]#inst.dd#) will prompt the installation program to ask you for a driver update disk with an interactive menu.
You should never attempt to perform a driver update during the installation unless a missing our faulty driver is preventing you from completing the installation. Updating drivers which are not essential during the installation should always be performed after the system is installed.
[option]#inst.askmethod#
Prevents the installer from trying to automatically configure an installation source.