SG_MAP(8) SG3_UTILS SG_MAP(8) (NAME) sg_map - sg SCSI (SYNOPSIS) sg_map [-a] [-h] [-i] [-n] [-scd] [-sd] [-sr] [-st] [-V] [-x] (DESCRIPTION) sg ( /dev/sg0) SCSI . sg cdrom (tape) SCSI ( ) . SCSI sg SCSI . . ( . ) lsscsi(8) udev(8) . (OPTIONS) -a sg /dev/sga /dev/sgb . . sg . . -h . -i INQUIRY (vendor) (product) (revision) . -n sg /dev/sg0 /dev/sg1 . . -scd cdrom SCSI /dev/scd0 /dev/scd1 . -sd SCSI . -sr cdrom SCSI /dev/sr0 /dev/sr1 . -st (tape) SCSI . -V . -x sg : (NOTES) -s cdrom SCSI . (devfs) . SCSI devfs sg cdrom . . SCSI . [ devfs devfsd .] <> . . . sysfs . sysfs sg SCSI () () . /dev/sdb . udev . sg_map /dev/sd [a-z,aa-zz,aaa-zzz] . ( ) sg sg_map26 . (hotplugging) SCSI . sg . . sysfs sg . <<>> sg ( ) sg . sg /dev/sg0 /dev/sg4095 ( ) . (EXAMPLES) SCSI (cd writer) : $ sg_map # Note: the devfs pseudo file system is present /dev/sg0 /dev/sda /dev/sg1 /dev/sr0 /dev/sg2 /dev/sr1 sg : $ sg_map -sd # Note: the devfs pseudo file system is present /dev/sg0 /dev/sda /dev/sg1 /dev/sg2 -x : sg_map -x # Note: the devfs pseudo file system is present /dev/sg0 1 0 1 0 0 /dev/sda /dev/sg1 2 0 4 0 5 /dev/sr0 /dev/sg2 2 0 6 0 5 /dev/sr1 SCSI : $ sg_map # Note: the devfs pseudo file system is present /dev/sg0 /dev/sda /dev/sg1 /dev/sr0 /dev/sg2 /dev/sr1 /dev/sg3 /dev/sg3 . (EXIT STATUS) sg_map 0 . sg3_utils(8) . (AUTHOR) Douglas Gilbert. (REPORTING BUGS) . (COPYRIGHT) (C) 2000-2026 Douglas Gilbert GPL . . (SEE ALSO) sg_map26(8), scsi_info(8), scsidev(8), devfsd(8), lsscsi(8), udev(7) sg3_utils-1.49 2026-06-25 SG_MAP(8)