|cdboot(8/amd64)||amd64-specific second-stage CD-specific bootstrap|
|cdboot(8/i386)||i386-specific second-stage CD-specific bootstrap|
|CDBOOT(8)||System Manager's Manual (amd64)||CDBOOT(8)|
cdbootis a modified version of the amd64 second-stage bootstrap program, boot(8), configured to be run by the OpenBSD El Torito CD-ROM boot sector cdbr.
cdbootwill look for an /etc/boot.conf configuration file on the CD-ROM. If it finds one, it processes the commands within it. boot.conf processing can be skipped by holding down either Control key as
cdboot then sits in a loop, processing
commands given by the user. It accepts all the commands accepted by
If no commands are given for a short time,
cdboot will then attempt to load an
OpenBSD kernel from the CD. It first looks for the
install kernel bsd.rd in the standard amd64 release
directory (e.g. /3.6/amd64/bsd.rd), then for
/bsd. It may be told to boot an alternative kernel,
either by commands in the boot.conf file, or by
commands typed by the user at the
cdbootconfiguration file (read from CD)
cdbootprogram first appeared in OpenBSD 3.6.
cdbootwill not be able to read its boot.conf(8) file. For example, with mkhybrid(8) the
-loption should be specified.
lscommand does not work on ISO 9660 (cd9660) filesystems, which are used on most CDs.
|March 30, 2016||OpenBSD-current|