07-23-2009
It requires a floppy disk with a file system installed.
Make a mount point that means something to you. One suggestion, fd0, then mount the device to it. Working as root and from /:
mkdir fd0
mount /dev/fd0 /fd0
If the command completes you will have a filesystem attached at fd0 that you can read from or write to.
Be sure to umount /fd0 when you are done.
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LEARN ABOUT REDHAT
genromfs
GENROMFS(8) System Manager's Manual GENROMFS(8)
NAME
genromfs - create a romfs image
SYNOPSIS
genromfs -f device [ -d source ] [ -V volumename ] [ -a alignment ] [ -A alignment,pattern ] [ -v ]
DESCRIPTION
genromfs is used to create a romfs file system image, usually directly on a block device, or for test purposes, in a plain file. It is the
mkfs equivalent of other filesystems.
genromfs will scan the current directory and its subdirectories, build a romfs image from the files found, and output it to the file or
device you specified.
OPTIONS
-f output
Specifies the file to output the image to. It must be specified.
-d source
Use the specified directory as the source, not the current directory.
-V volumename
Build the image with the specified volume name. Currently it is not used by the kernel, but it will be recorded in the image.
-a alignment
Align regular files to alignment bytes. genromfs will align data of each regular file in the resulting image to the specified
alignment, while keeping the image compatible with the original romfs definition (by adding pad bytes between last node before the
file and file's header). By default, genromfs will guarantee only an alignment of 16 bytes.
-A alignment,pattern
Align objects matching shell wildcard pattern to alignment bytes. If one object matches more patterns, then the highest alignment
is chosen. Alignment has to be a power of two. Patterns either don't contain any slashes, in which case files matching those pat-
terns are matched in all directories, or start with a leading slash, in which case they are matched against absolute paths inside of
the romfs filesystem (that is, as if you chrooted into the rom filesystem).
-v Verbose operation, genromfs will print every file which are included in the image, along with its offset.
EXAMPLES
genromfs -d root -f /dev/fd0 -V 'Secret labs install disk'
All files in the root directory will be written to /dev/fd0 as a new romfs filesystem image.
genromfs -d root -f /dev/fd0 -A 2048,/.. -A '4096,*.boot' -a 512 -V 'Bootable floppy'
Generate the image and place file data of all regular files on 512 bytes boundaries or on 4K boundaries, if they have the .boot extension.
Also, align the root directories '..' romfs header on 2K boundary.
You can use the generated image (if you have the romfs module loaded, or compiled into the kernel) via:
mount -t romfs /dev/fd0 /mnt
AUTHOR
This manual page was initially written by Christoph Lameter <clameter@debian.org>, for the Debian GNU/Linux system.
SEE ALSO
mkfs(8), mount(8), mkisofs(8)
Version 0.3 Sep 1998 GENROMFS(8)