System Administration Guide

How to Display Device Information

Display device information with the dmesg command.

# /usr/sbin/dmesg

The dmesg output is displayed as messages on the system console and identifies which devices are connected to the system since the last reboot.

Examples--Displaying Device Information

The following dmesg output is displayed from a SPARC system.

# dmesg
Dec 12 16:22
SunOS Release 5.6 Version [UNIX(R) System V Release 4.0]
Copyright (c) 1983-1997, Sun Microsystems, Inc.
pac: enabled - SuperSPARC
cpu0: TI,TMS390Z50 (mid 8 impl 0x0 ver 0x3 clock 50 MHz)
mem = 32768K (0x2000000)
avail mem = 28016640
Ethernet address = 8:0:20:79:7a:e5
root nexus = SUNW,SPARCstation-20
iommu0 at root: obio 0xe0000000
sbus0 at iommu0: obio 0xe0001000
espdma0 at sbus0: SBus slot f 0x400000
esp0:	esp-options=0x46
esp0 at espdma0: SBus slot f 0x800000 sparc ipl 4
sd3 at esp0: target 3 lun 0
sd3 is /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0
sd5 at esp0: target 5 lun 0
sd5 is /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@5,0
root on /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0:a fstype ufs
obio0 at root
zs0 at obio0: obio 0x100000 sparc ipl 12
zs0 is /obio/zs@0,100000
zs1 at obio0: obio 0x0 sparc ipl 12
zs1 is /obio/zs@0,0
cgsix0 at sbus0: SBus slot 2 0x0 SBus level 5 sparc ipl 9
cgsix0 is /iommu@f,e0000000/sbus@f,e0001000/cgsix@2,0
cgsix0: screen 1152x900, single buffered, 1M mappable, rev 11
cpu 0 initialization complete - online
ledma0 at sbus0: SBus slot f 0x400010
le0 at ledma0: SBus slot f 0xc00000 sparc ipl 6
le0 is /iommu@f,e0000000/sbus@f,e0001000/ledma@f,400010/le@f,c00000
dump on /dev/dsk/c0t3d0s1 size 102804K
#

The following dmesg output is displayed from an x86 system.

# dmesg
Nov 12 10:30
SunOS Release 5.6 Version [UNIX(R) System V Release 4.0]
Copyright (c) 1983-1997, Sun Microsystems, Inc.
mem = 15992K (0xf9e000)
avail mem = 12070912
root nexus = i86pc
eisa0 at root
EISA-device: dpt6
Disk0:	<Vendor `MAXTOR  ` Product `LXT-535S        `>
cmdk0 at dpt6 target 0 lun 0
cmdk0 is /eisa/dpt@5c88,0/cmdk@0,0
Disk6:	<Vendor `SONY    ` Product `CD-ROM CDU-8012 `>
cmdk6 at dpt6 target 6 lun 0
cmdk6 is /eisa/dpt@5c88,0/cmdk@6,0
EISA-device: asy0
asy0 is /eisa/asy@3f8,0
Ethernet address = 0:0:c0:68:14:5d
SMC WD8003/WD8013 driver: type=WD8013W   addr=00 00 c0 68 14 5d
EISA-device: smc0
smc0 is /eisa/smc@0,c0000
dump on /dev/dsk/c0t0d0s1 size 32756K
NOTICE: GIO_KEYMAP type 0
NOTICE: PIO_KEYMAP type 0
NOTICE: INSTALLING new map of type USL FORMAT
NOTICE: IN i8042_acquire
NOTICE: out i8042_acquire
NOTICE: rv was 1
NOTICE: IN i8042_release
NOTICE: about to enable keyboard
NOTICE: out i8042_release
Nov 30 17:19:31 sendmail[171]: network daemon starting