Linux查看系统硬件信息

本文发布时间: 2019-Mar-22
cpulscpu命令,查看的是cpu的统计信息.blue@blue-pc:~$ lscpuArchitecture: i686 #cpu架构CPU op-mode(s): 32-bit, 64-bitByte Order: Little Endian #小尾序CPU(s): 4 #总共有4核On-line CPU(s) list: 0-3Thread(s) per core: 1 #每个cpu核,只能支持一个线程,即不支持超线程Core(s) per socket: 4 #每个cpu,有4个核Socket(s): 1 #总共有1一个cpuVendor ID: GenuineIntel #cpu产商 intelCPU family: 6Model: 42Stepping: 7CPU MHz: 1600.000BogoMIPS: 5986.12Virtualization: VT-x #支持cpu虚拟化技术L1d cache: 32KL1i cache: 32KL2 cache: 256KL3 cache: 6144K查看/proc/cpuinfo,可以知道每个cpu信息,如每个CPU的型号,主频等。#cat /proc/cpuinfoprocessor : 0vendor_id : GenuineIntelcpu family : 6model : 42model name : Intel(R) Core(TM) i5-2320 CPU @ 3.00GHz.....上面输出的是第一个cpu部分信息,还有3个cpu信息省略了。内存free -m total used free shared buffers cachedMem: 3926 3651 274 0 12 404-/+ buffers/cache: 3235 691Swap: 9536 31 9505这里的单位是MB,总共的内存是3926MB。查看内存详细使用# cat /proc/meminfoMemTotal: 4020868 kBMemFree: 230884 kBBuffers: 7600 kBCached: 454772 kBSwapCached: 836 kB.....查看内存硬件信息yum -y install dmidecodedmidecode -t 查看相关参数, 以下为带上相关参数来检测相关信息。 bios system baseboard 主板信息 chassis processor CPU memory 内存 cache connector slot注:如果不带以上参数,就会把所有信息显示出来,不好查看。1、 dmidecode -t processor查看CPU信息,就可以看到你的CPU是什么型号,多少核,频率、缓存等信息cat /proc/cpuinfo 也一样可查CPU信息。2、 dmidecode -t baseboard查看主板信息,会显示具体的主板英文型号, 国外免费空间再到网上搜索一下主板的英文型号信息就知道了他属什么主板,用的什么芯片组。SMBIOS 2.4 present.Handle 0x0001, DMI type 1, 27 bytesSystem Information Manufacturer: Gigabyte Technology Co., Ltd. Product Name: G31M-ES2L Version: Serial Number: UUID: 00000000-0000-0000-0000-00241DCA48F8 Wake-up Type: Power Switch SKU Number: Family: 这是技嘉主板,G31M 的 3、 dmidecode -t 17 能显示 插入的内存条的详细信息,如芯片,频率等等,如:Handle 0x0034, DMI type 17, 27 bytesMemory Device Array Handle: 0x0031 Error Information Handle: 0x0035 Total Width: 64 bits Data Width: 64 bitsSize: 2048 MB Form Factor: DIMM Set: None Locator: DIMM0 Bank Locator: BANK0Type: DDR2 Type Detail: SynchronousSpeed: 800 MHz Manufacturer: Manufacturer00 Serial Number: SerNum00 Asset Tag: AssetTagNum0 Part Number: ModulePartNumber00以上信息显示,内存为2G DDR2 800的。或 dmidecode -t memory 能显示主板支持最大多少的内存,最多支持多少, 内存是否双通道等、如: (有些系统,或主板不能显示这些信息)Handle 0x0008, DMI type 5, 24 bytesMemory Controller Information Error Detecting Method: None Error Correcting Capabilities: None Supported Interleave: One-way Interleave Current Interleave: One-way Interleave Maximum Memory Module Size: 16384 MB 单条支持16G Maximum Total Memory Size: 65536 MB 最大支持64G Supported Speeds: Other Supported Memory Types: DIMM Memory Module Voltage: 3.3 V Associated Memory Slots: 4 0x0009 0x000A 0x000B 0x000C Enabled Error Correcting Capabilities: NoneHandle 0x0009, DMI type 6, 12 bytesMemory Module Information Socket Designation: DIMM0 Bank Connections: 0 1 Current Speed: 25 ns Type: DIMM Installed Size: 2048 MB (Double-bank Connection) 双通道 Enabled Size: 2048 MB (Double-bank Connection) Error Status: OK查看bios信息# dmidecode -t bios# dmidecode 2.12SMBIOS 2.4 present.Handle 0x0000, DMI type 0, 24 bytesBIOS Information Vendor: Phoenix Technologies LTD Version: 6.00 Release Date: 07/02/2012 Address: 0xEA0C0 Runtime Size: 89920 bytes ROM Size: 64 kB Characteristics: ISA is supported PCI is supported PC Card (PCMCIA) is supported PNP is supported APM is supported BIOS is upgradeable BIOS shadowing is allowed ESCD support is available Boot from CD is supported Selectable boot is supported EDD is supported Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) Serial services are supported (int 14h) Printer services are supported (int 17h) CGA/mono video services are supported (int 10h) ACPI is supported Smart battery is supported BIOS boot specification is supported Function key-initiated network boot is supported Targeted content distribution is supported BIOS Revision: 4.6 Firmware Revision: 0.0如果要查看所有有用信息dmidecode -q里面包含了很多硬件信息磁盘查看硬盘和分区分布# lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsda 8:0 0 465.8G 0 disk├─sda1 8:1 0 1G 0 part /boot├─sda2 8:2 0 9.3G 0 part [SWAP]├─sda3 8:3 0 74.5G 0 part /├─sda4 8:4 0 1K 0 part├─sda5 8:5 0 111.8G 0 part /home└─sda6 8:6 0 269.2G 0 part如果要看硬盘和分区的详细信息# fdisk -lDisk /dev/sda: 500.1 GB, 500107862016 bytesheads, 63 sectors/track, 60801 cylinders, total 976773168 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 4096 bytesI/O size (minimum/optimal): 4096 bytes / 4096 bytesDisk identifier: 0x00023728 Device Boot Start End Blocks Id System/dev/sda1 * 2048 2148351 1073152 83 Linux/dev/sda2 2148352 21680127 9765888 82 Linux swap / Solaris/dev/sda3 21680128 177930239 78125056 83 Linux/dev/sda4 177932286 976771071 399419393 5 Extended/dev/sda5 177932288 412305407 117186560 83 Linux/dev/sda6 412307456 976771071 282231808 83 Linux网卡查看网卡硬件信息# lspci | grep -i 'eth'02:00.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)02:01.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)查看系统的所有网络接口# ifconfig -aeth0 Link encap:以太网 硬件地址 b8:97:5a:17:b3:8f .....lo Link encap:本地环回或者:# ip link show1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:002: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:65:fa:72 brd ff:ff:ff:ff:ff:ff3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:65:fa:7c brd ff:ff:ff:ff:ff:ff如果要查看某个网络接口的详细信息,例如eth0的详细参数和指标# ethtool eth0Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full #支持千兆半双工,全双工模式 Supported pause frame use: No Supports auto-negotiation: Yes #支持自适应模式,一般都支持 Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes #默认使用自适应模式 Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full ..... Speed: 100Mb/s #现在网卡的速度是100Mb,网卡使用自适应模式,所以推测路由是100Mb,导致网卡从支持千兆,变成要支持百兆 Duplex: Full #全双工 ..... Link detected: yes #表示有网线连接,和路由是通的其他查看pci信息,即主板所有硬件槽信息。lspci00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) #主板芯片00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) #显卡00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) #usb控制器00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) #声卡00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) #pci 插槽00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4)00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)00:1f.2 IDE interface: Intel Corporation Panther Point 4 port SATA Controller [IDE mode] (rev 04) #硬盘接口00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)00:1f.5 IDE interface: Intel Corporation Panther Point 2 port SATA Controller [IDE mode] (rev 04) #硬盘接口02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) #网卡03:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8893 (rev 41)如果要更详细的信息:lspci -v 或者 lspci -vv如果要看设备树:lscpi -t


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