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RDSETROOT(8) FreeBSD System Manager's Manual RDSETROOT(8) NAME rdsetroot - insert disk image into RAMDISK kernel SYNOPSIS rdsetroot -s kernel rdsetroot [-dx] kernel [disk.fs] DESCRIPTION The rdsetroot utility inserts the file disk.fs into the reserved space inside a RAMDISK kernel. If disk.fs is not specified, rdsetroot reads from standard input. The options are as follows: -d Debug. -s Print the size in bytes of the reserved space in the RAMDISK kernel. No insertion or extraction is attempted. -x Rather than inserting, extract the disk.fs image. If disk.fs is not specified, rdsetroot writes to standard output. The disk can be made accessible using vnconfig(8), filesystems can be manipulated, and finally re-inserted into the RAMDISK kernel. SEE ALSO config(8), disklabel(8), vnconfig(8) FreeBSD 14.1-RELEASE-p8 April 24, 2023 FreeBSD 14.1-RELEASE-p8