Iwu 10 iji nakọta ozi sistemụ na ngwaike na Linux


Ọ bụ omume dị mma mgbe niile ịmara akụrụngwa ngwaike nke sistemụ Linux gị na-arụ ọrụ, nke a na-enyere gị aka ịnagide nsogbu ndakọrịta ma a bịa n'ịwụnye ngwugwu, ndị ọkwọ ụgbọ ala na sistemụ gị na-eji apt.

Ya mere, n'iwu ndị a bara uru nke nwere ike inyere gị aka wepụ ozi gbasara sistemụ Linux gị na ngwaike.

1. Otu esi ele ozi sistemụ Linux

Iji mara naanị aha sistemụ, ịnwere ike iji iwu enweghị aha na-enweghị mgba ọkụ ọ bụla ga-ebipụta ozi sistemụ ma ọ bụ iwu uname -s ga-ebipụta aha kernel nke sistemụ gị.

[email  ~ $ uname

Linux

Ka ilele aha nnabata netwọkụ gị, jiri ‘-n’ ịgbanwee jiri iwu enweghị aha dịka egosiri.

[email  ~ $ uname -n

linux-console.net

Iji nweta ozi gbasara ụdị kernel, jiri mgba ọkụ '-v'.

[email  ~ $ uname -v

#64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014

Iji nweta ozi gbasara ntọhapụ kernel gị, jiri mgba ọkụ '-r'.

[email  ~ $ uname -r

3.13.0-37-generic

Iji bipụta aha akụrụngwa akụrụngwa gị, jiri mgba ọkụ '-m':

[email  ~ $ uname -m

x86_64

Enwere ike ibipụta ozi a niile ozugbo site n'ịgba iwu 'uname -a' dị ka egosiri n'okpuru.

[email  ~ $ uname -a

Linux linux-console.net 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

2. Otu esi ele ozi ngwaike sistemụ Linux

N'ebe a, ị nwere ike iji ngwa lshw iji kpokọta ozi buru ibu gbasara akụrụngwa akụrụngwa gị dịka cpu, diski, ebe nchekwa, ndị na-ahụ maka usb, wdg.

lshw bụ ngwá ọrụ dị ntakịrị ma enwere nhọrọ ole na ole ị nwere ike iji ya mee ihe mgbe ị na-ewepụta ozi. Ozi nke lshw nyere sitere na faịlụ/proc dị iche iche.

Mara: Cheta na onye superuser (mgbọrọgwụ) ma ọ bụ onye ọrụ sudo na-eme iwu lshw.

Ka ibipụta ozi gbasara ngwaike sistemu Linux gị, mee iwu a.

[email  ~ $ sudo lshw

linux-console.net               
    description: Notebook
    product: 20354 (LENOVO_MT_20354_BU_idea_FM_Lenovo Z50-70)
    vendor: LENOVO
    version: Lenovo Z50-70
    serial: 1037407803441
    width: 64 bits
    capabilities: smbios-2.7 dmi-2.7 vsyscall32
    configuration: administrator_password=disabled boot=normal 
    chassis=notebook family=IDEAPAD frontpanel_password=disabled 
    keyboard_password=disabled power-on_password=disabled 
    sku=LENOVO_MT_20354_BU_idea_FM_Lenovo Z50-70 
    uuid=E4B1D229-D237-E411-9F6E-28D244EBBD98
  *-core
       description: Motherboard
       product: Lancer 5A5
       vendor: LENOVO
       physical id: 0
       version: 31900059WIN
       serial: YB06377069
       slot: Type2 - Board Chassis Location
     *-firmware
          description: BIOS
          vendor: LENOVO
          physical id: 0
          version: 9BCN26WW
          date: 07/31/2014
          size: 128KiB
          capacity: 4032KiB
          capabilities: pci upgrade shadowing cdboot bootselect edd  
          int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 
int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi
......

Ị nwere ike ibipụta nchịkọta ozi ngwaike gị site na iji nhọrọ -short.

[email  ~ $ sudo lshw -short

H/W path       Device      Class          Description
=====================================================
                           system         20354 (LENOVO_MT_20354_
                                          BU_idea_FM_Lenovo Z50-70)
/0                         bus            Lancer 5A5
/0/0                       memory         128KiB BIOS
/0/4                       processor      Intel(R) Core(TM) i5-4210U 
                                          CPU @ 1.70GHz
/0/4/b                     memory         32KiB L1 cache
/0/4/c                     memory         256KiB L2 cache
/0/4/d                     memory         3MiB L3 cache
/0/a                       memory         32KiB L1 cache
/0/12                      memory         8GiB System Memory
/0/12/0                    memory         DIMM [empty]
/0/12/1                    memory         DIMM [empty]
/0/12/2                    memory         8GiB SODIMM DDR3 Synchronous 
                                          1600 MHz (0.6 ns)
/0/12/3                    memory         DIMM [empty]
/0/100                     bridge         Haswell-ULT DRAM Controller
/0/100/2                   display        Haswell-ULT Integrated 
                                          Graphics Controller
/0/100/3                   multimedia     Haswell-ULT HD Audio Controller
...

Ọ bụrụ na-ịchọrọ ịmepụta mmepụta dị ka faịlụ HTML, ị nwere ike iji nhọrọ -html.

[email  ~ $ sudo lshw -html > lshw.html

3. Otu esi ele ozi CPU Linux

Ka ilele ozi gbasara CPU gị, jiri iwu lscpu ka ọ na-egosi ozi gbasara ihe owuwu CPU gị dị ka ọnụọgụ CPU, cores, ụdị ezinụlọ CPU, cache CPU, eri, wdg sitere na sysfs na /proc/cpuinfo.

[email  ~ $ lscpu

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) per core:    2
Core(s) per socket:    2
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 69
Stepping:              1
CPU MHz:               768.000
BogoMIPS:              4788.72
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              3072K
NUMA node0 CPU(s):     0-3

4. Otu esi anakọta ozi ngwaọrụ Linux Block Linux

Ngwa ngọngọ bụ ngwaọrụ nchekwa dị ka diski ike, draịva flash, wdg. A na-eji iwu lsblk kọọ ozi gbasara ngwaọrụ ngọngọ dịka ndị a.

[email  ~ $ lsblk

NAME    MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda       8:0    0 931.5G  0 disk 
├─sda1    8:1    0  1000M  0 part 
├─sda2    8:2    0   260M  0 part /boot/efi
├─sda3    8:3    0  1000M  0 part 
├─sda4    8:4    0   128M  0 part 
├─sda5    8:5    0 557.1G  0 part 
├─sda6    8:6    0    25G  0 part 
├─sda7    8:7    0  14.7G  0 part 
├─sda8    8:8    0     1M  0 part 
├─sda9    8:9    0 324.5G  0 part /
└─sda10   8:10   0   7.9G  0 part [SWAP]
sr0      11:0    1  1024M  0 rom  

Ọ bụrụ na ị chọrọ ile niile ngọngọ ngwaọrụ na gị usoro mgbe ahụ na-agụnye -a nhọrọ.

[email  ~ $ lsblk -a

NAME    MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda       8:0    0 931.5G  0 disk 
├─sda1    8:1    0  1000M  0 part 
├─sda2    8:2    0   260M  0 part /boot/efi
├─sda3    8:3    0  1000M  0 part 
├─sda4    8:4    0   128M  0 part 
├─sda5    8:5    0 557.1G  0 part 
├─sda6    8:6    0    25G  0 part 
├─sda7    8:7    0  14.7G  0 part 
├─sda8    8:8    0     1M  0 part 
├─sda9    8:9    0 324.5G  0 part /
└─sda10   8:10   0   7.9G  0 part [SWAP]
sdb       8:16   1         0 disk 
sr0      11:0    1  1024M  0 rom  
ram0      1:0    0    64M  0 disk 
ram1      1:1    0    64M  0 disk 
ram2      1:2    0    64M  0 disk 
ram3      1:3    0    64M  0 disk 
ram4      1:4    0    64M  0 disk 
ram5      1:5    0    64M  0 disk 
ram6      1:6    0    64M  0 disk 
ram7      1:7    0    64M  0 disk 
ram8      1:8    0    64M  0 disk 
ram9      1:9    0    64M  0 disk 
loop0     7:0    0         0 loop 
loop1     7:1    0         0 loop 
loop2     7:2    0         0 loop 
loop3     7:3    0         0 loop 
loop4     7:4    0         0 loop 
loop5     7:5    0         0 loop 
loop6     7:6    0         0 loop 
loop7     7:7    0         0 loop 
ram10     1:10   0    64M  0 disk 
ram11     1:11   0    64M  0 disk 
ram12     1:12   0    64M  0 disk 
ram13     1:13   0    64M  0 disk 
ram14     1:14   0    64M  0 disk 
ram15     1:15   0    64M  0 disk 

5. Otu esi ebipụta ozi njikwa USB

A na-eji iwu lsusb kọọ akụkọ gbasara ndị na-ahụ maka USB na ngwaọrụ niile ejikọrọ na ha.

[email  ~ $ lsusb

Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 005: ID 0bda:b728 Realtek Semiconductor Corp. 
Bus 002 Device 004: ID 5986:0249 Acer, Inc 
Bus 002 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. 
RTS5129 Card Reader Controller
Bus 002 Device 002: ID 045e:00cb Microsoft Corp. 
Basic Optical Mouse v2.0
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 
2.0 root hub

Ị nwere ike iji nhọrọ -v mepụta ozi zuru ezu gbasara ngwaọrụ USB ọ bụla.

[email  ~ $ lsusb -v

6. Otu esi ebipụta ozi ngwaọrụ PCI

Ngwaọrụ PCI nwere ike ịgụnye ọdụ ụgbọ mmiri USB, kaadị eserese, ihe nkwụnye netwọkụ, wdg. A na-eji ngwá ọrụ lspci mepụta ozi gbasara ndị na-ahụ maka PCI niile na sistemụ gị yana ngwaọrụ ejikọrọ na ha.

Ka ibipụta ozi gbasara ngwaọrụ PCI gbasoro iwu a.

[email  ~ $ lspci

00:00.0 Host bridge: Intel Corporation Haswell-ULT 
DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT 
Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller
(rev 0b)
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC 
(rev 04)
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 
(rev 04)
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller 
(rev 04)
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 
(rev e4)
00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4 
(rev e4)
00:1c.4 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 5 
(rev e4)
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 
(rev 04)
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller 
(rev 04)
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 
[AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 
PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. 
RTL8723BE PCIe Wireless Network Adapter
03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)

Jiri nhọrọ -t mepụta mmepụta n'ụdị osisi.

[email  ~ $ lspci -t

-[0000:00]-+-00.0
           +-02.0
           +-03.0
           +-14.0
           +-16.0
           +-1b.0
           +-1c.0-[01]----00.0
           +-1c.3-[02]----00.0
           +-1c.4-[03]----00.0
           +-1d.0
           +-1f.0
           +-1f.2
           \-1f.3

Jiri nhọrọ -v mepụta ozi zuru ezu gbasara ngwaọrụ ọ bụla ejikọrọ.

[email  ~ $ lspci -v

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
	Subsystem: Lenovo Device 3978
	Flags: bus master, fast devsel, latency 0
	Capabilities: 

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT 
Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device 380d
	Flags: bus master, fast devsel, latency 0, IRQ 62
	Memory at c3000000 (64-bit, non-prefetchable) [size=4M]
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 6000 [size=64]
	Expansion ROM at  [disabled]
	Capabilities: 
	Kernel driver in use: i915
.....

7. Otu esi ebipụta ozi ngwaọrụ SCSI

Ka ilele ngwaọrụ scsi/sata gị niile, jiri iwu lsscsi dị ka ndị a. Ọ bụrụ na ị nweghị akụrụngwa lsscsi arụnyere, mee iwu a ka ịwụnye ya.

$ sudo apt-get install lsscsi        [on Debian derivatives]
# yum install lsscsi                 [On RedHat based systems]
# dnf install lsscsi                 [On Fedora 21+ Onwards]

Mgbe echichi gasịrị, mee iwu lsscsi dị ka egosiri:

[email  ~ $ lsscsi

[0:0:0:0]    disk    ATA      ST1000LM024 HN-M 2BA3  /dev/sda 
[1:0:0:0]    cd/dvd  PLDS     DVD-RW DA8A5SH   RL61  /dev/sr0 
[4:0:0:0]    disk    Generic- xD/SD/M.S.       1.00  /dev/sdb 

Jiri nhọrọ -s gosi nha ngwaọrụ.

[email  ~ $ lsscsi -s

[0:0:0:0]    disk    ATA      ST1000LM024 HN-M 2BA3  /dev/sda   1.00TB
[1:0:0:0]    cd/dvd  PLDS     DVD-RW DA8A5SH   RL61  /dev/sr0        -
[4:0:0:0]    disk    Generic- xD/SD/M.S.       1.00  /dev/sdb        -

8. Otu esi ebipụta ozi gbasara ngwaọrụ SATA

Ị nwere ike ịchọta ụfọdụ ozi gbasara ngwaọrụ sata na sistemụ gị dị ka ndị a site na iji hdparm utility. N'ihe atụ dị n'okpuru, ejiri m ngwaọrụ ngọngọ/dev/sda1 nke bụ diski ike na sistemụ m.

[email  ~ $ sudo hdparm /dev/sda1

/dev/sda1:
 multcount     =  0 (off)
 IO_support    =  1 (32-bit)
 readonly      =  0 (off)
 readahead     = 256 (on)
 geometry      = 56065/255/63, sectors = 2048000, start = 2048

Iji bipụta ozi gbasara geometry ngwaọrụ n'usoro nke cylinders, isi, ngalaba, nha, na nbido nke ngwaọrụ ahụ, jiri nhọrọ -g.

[email  ~ $ sudo hdparm -g /dev/sda1

/dev/sda1:
 geometry      = 56065/255/63, sectors = 2048000, start = 2048

9. Otu esi elele ozi sistemụ faịlụ Linux

Iji kpokọta ozi gbasara akụkụ sistemụ faịlụ, ị nwere ike iji gbanwee akụkụ sistemụ faịlụ, enwere ike iji ya lelee ozi gbasara akụkụ dị iche iche na sistemụ faịlụ gị.

Ị nwere ike ibipụta ozi nkebi dịka ndị a. Cheta na ị na-agba ọsọ iwu dị ka onye na-ahụ maka ọrụ ma ọ bụ na ị gaghị ahụ mmepụta ọ bụla.

[email  ~ $ sudo fdisk -l

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! 
The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, 
total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xcee8ad92

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1  1953525167   976762583+  ee  GPT
Partition 1 does not start on physical sector boundary.

10. Otu esi elele ozi akụrụngwa akụrụngwa Linux

Ị nwekwara ike iji ọrụ dmidecode wepụ ozi ngwaike site na ịgụ data sitere na tebụl DMI.

Ka ibipụta ozi gbasara ebe nchekwa, mee iwu a ka onye na-ahụ maka nchekwa.

[email  ~ $ sudo dmidecode -t memory

# dmidecode 2.12
# SMBIOS entry point at 0xaaebef98
SMBIOS 2.7 present.

Handle 0x0005, DMI type 5, 24 bytes
Memory Controller Information
	Error Detecting Method: None
	Error Correcting Capabilities:
		None
	Supported Interleave: One-way Interleave
	Current Interleave: One-way Interleave
	Maximum Memory Module Size: 8192 MB
	Maximum Total Memory Size: 32768 MB
	Supported Speeds:
		Other
	Supported Memory Types:
		Other
	Memory Module Voltage: Unknown
	Associated Memory Slots: 4
		0x0006
		0x0007
		0x0008
		0x0009
	Enabled Error Correcting Capabilities:
		None
...

Ka ibipụta ozi gbasara sistemụ, mee iwu a.

[email  ~ $ sudo dmidecode -t system

# dmidecode 2.12
# SMBIOS entry point at 0xaaebef98
SMBIOS 2.7 present.

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: LENOVO
	Product Name: 20354
	Version: Lenovo Z50-70
	Serial Number: 1037407803441
	UUID: 29D2B1E4-37D2-11E4-9F6E-28D244EBBD98
	Wake-up Type: Power Switch
	SKU Number: LENOVO_MT_20354_BU_idea_FM_Lenovo Z50-70
	Family: IDEAPAD
...

Ka ibipụta ozi gbasara BIOS, mee iwu a.

[email  ~ $ sudo dmidecode -t bios

# dmidecode 2.12
# SMBIOS entry point at 0xaaebef98
SMBIOS 2.7 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
	Vendor: LENOVO
	Version: 9BCN26WW
	Release Date: 07/31/2014
	Address: 0xE0000
	Runtime Size: 128 kB
	ROM Size: 4096 kB
	Characteristics:
		PCI is supported
		BIOS is upgradeable
		BIOS shadowing is allowed
		Boot from CD is supported
		Selectable boot is supported
		EDD is supported
		Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
		Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
		5.25"/360 kB floppy services are supported (int 13h)
		5.25"/1.2 MB floppy services are supported (int 13h)
		3.5"/720 kB floppy services are supported (int 13h)
		3.5"/2.88 MB floppy services are supported (int 13h)
		8042 keyboard services are supported (int 9h)
		CGA/mono video services are supported (int 10h)
		ACPI is supported
		USB legacy is supported
		BIOS boot specification is supported
		Targeted content distribution is supported
		UEFI is supported
	BIOS Revision: 0.26
	Firmware Revision: 0.26
...

Ka ibipụta ozi gbasara processor, mee iwu a.

[email  ~ $ sudo dmidecode -t processor

# dmidecode 2.12
# SMBIOS entry point at 0xaaebef98
SMBIOS 2.7 present.

Handle 0x0004, DMI type 4, 42 bytes
Processor Information
	Socket Designation: U3E1
	Type: Central Processor
	Family: Core i5
	Manufacturer: Intel(R) Corporation
	ID: 51 06 04 00 FF FB EB BF
	Signature: Type 0, Family 6, Model 69, Stepping 1
	Flags:
...

Nchịkọta

Enwere ọtụtụ ụzọ ndị ọzọ ị ga-eji nweta ozi gbasara ngwa ngwa sistemụ gị. Ọtụtụ n'ime iwu ndị a na-eji faịlụ dị na ndekọ/proc wepụ ozi sistemụ.

Echere na ịchọta ndụmọdụ na usoro ndị a bara uru ma cheta ịdepụta okwu ma ọ bụrụ na ịchọrọ ịgbakwunye ozi ndị ọzọ na nke a ma ọ bụ ọ bụrụ na ị na-eche nsogbu ọ bụla ihu na iji iwu ọ bụla. Cheta na ị ga-ejikọ na Tecment mgbe niile.