lsblk命令详解
lsblk命令详解
lsblk命令用来查看block设备的信息.
主要应用场景: 获取wwnid,获取块设备列表,获取块设备类型(ssd,hdd),获取块设备的size等信息.
数据来源: /sys/dev/block
返回码:
0: success 1: failure 32: 找不到所有指定设备 64: 一些设备找到了,一些设备没找到
类似的命令:
findmnt , blkid, ls
帮助信息:
➜ ~ lsblk --help Usage: lsblk [options] [<device> ...] List information about block devices. 选项： -a, --all print all devices -b, --bytes print SIZE in bytes rather than in human readable format -d, --nodeps don't print slaves or holders -D, --discard print discard capabilities -e, --exclude <list> exclude devices by major number (default: RAM disks) -f, --fs output info about filesystems -i, --ascii use ascii characters only -I, --include <list> show only devices with specified major numbers -J, --json use JSON output format -l, --list use list format output -m, --perms output info about permissions -n, --noheadings don't print headings -o, --output <list> output columns -O, --output-all output all columns -p, --paths print complete device path -P, --pairs use key="value" output format -r, --raw use raw output format -s, --inverse inverse dependencies -S, --scsi output info about SCSI devices -t, --topology output info about topology -x, --sort <column> sort output by <column> -h, --help display this help and exit -V, --version output version information and exit Available columns (for --output): NAME device name KNAME internal kernel device name MAJ:MIN major:minor device number FSTYPE filesystem type MOUNTPOINT where the device is mounted LABEL filesystem LABEL UUID filesystem UUID PARTTYPE partition type UUID PARTLABEL partition LABEL PARTUUID partition UUID PARTFLAGS partition flags RA read-ahead of the device RO read-only device RM removable device HOTPLUG removable or hotplug device (usb, pcmcia, ...) MODEL device identifier SERIAL disk serial number SIZE size of the device STATE state of the device OWNER user name GROUP group name MODE device node permissions ALIGNMENT alignment offset MIN-IO minimum I/O size OPT-IO optimal I/O size PHY-SEC physical sector size LOG-SEC logical sector size ROTA rotational device, 0是不可旋转(ssd),1是可旋转(hdd) SCHED I/O scheduler name RQ-SIZE request queue size TYPE device type DISC-ALN discard alignment offset DISC-GRAN discard granularity DISC-MAX discard max bytes DISC-ZERO discard zeroes data WSAME write same max bytes WWN unique storage identifier RAND adds randomness PKNAME internal parent kernel device name HCTL Host:Channel:Target:Lun for SCSI TRAN device transport type SUBSYSTEMS de-duplicated chain of subsystems REV device revision VENDOR device vendor
lsblk 命令输出 default 参数是-a, --all
➜ ~ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk └─sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk ├─sdb2 8:18 0 915M 0 part └─sdb1 8:17 0 118.4G 0 part loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk ├─sde2 8:66 0 1.8T 0 part └─sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk ├─sdc2 8:34 0 372G 0 part /home ├─sdc5 8:37 0 9.5G 0 part [SWAP] ├─sdc3 8:35 0 1K 0 part └─sdc1 8:33 0 95.4G 0 part / loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -b , --bytes ,输出单位为字节
➜ ~ lsblk -b NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 58478592 1 loop /snap/kata-containers/288 sdd 8:48 0 2000398934016 0 disk └─sdd1 8:49 0 2000397795328 0 part sdb 8:16 0 128035676160 0 disk ├─sdb2 8:18 0 959447040 0 part └─sdb1 8:17 0 127071901696 0 part loop4 7:4 0 73129984 1 loop /snap/kata-containers/352 sr0 11:0 1 1073741312 0 rom loop2 7:2 0 93720576 1 loop /snap/core/6818 loop0 7:0 0 92733440 1 loop /snap/core/6964 sde 8:64 0 2000398934016 0 disk ├─sde2 8:66 0 2000263577600 0 part └─sde1 8:65 0 134217728 0 part sdc 8:32 0 512110190592 0 disk ├─sdc2 8:34 0 399469707264 0 part /home ├─sdc5 8:37 0 10239344640 0 part [SWAP] ├─sdc3 8:35 0 1024 0 part └─sdc1 8:33 0 102398689280 0 part / loop3 7:3 0 93581312 1 loop /snap/core/6673
lsblk -D , --discard, 打印discard信息, (没详细查)，针对SSD盘，trim相关
➜ ~ lsblk -D NAME DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO loop1 0 4K 4G 0 sdd 0 4K 2G 0 └─sdd1 0 4K 2G 0 sdb 0 512B 2G 0 ├─sdb2 0 512B 2G 0 └─sdb1 0 512B 2G 0 loop4 0 4K 4G 0 sr0 0 0B 0B 0 loop2 0 4K 4G 0 loop0 0 4K 4G 0 sde 0 0B 0B 0 ├─sde2 0 0B 0B 0 └─sde1 0 0B 0B 0 sdc 0 512B 2G 0 ├─sdc2 0 512B 2G 0 ├─sdc5 0 512B 2G 0 ├─sdc3 0 512B 2G 0 └─sdc1 0 512B 2G 0 loop3 0 4K 4G 0
DISC-GRAN DISC-MAX 非0说明支持fstrim
lsblk -d [/dev/sdx], --nodeps ,打印指定设备的信息,或者打印所有设备的信息
➜ ~ lsblk -d NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk sdb 8:16 0 119.2G 0 disk loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk sdc 8:32 0 477G 0 disk loop3 7:3 0 89.3M 1 loop /snap/core/6673 ➜ ~ lsblk -d /dev/sdc NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdc 8:32 0 477G 0 disk
lsblk -e, --exclude list , 排除major id列表
➜ ~ lsblk -e 7 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdd 8:48 0 1.8T 0 disk └─sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk ├─sdb2 8:18 0 915M 0 part └─sdb1 8:17 0 118.4G 0 part sr0 11:0 1 1024M 0 rom sde 8:64 0 1.8T 0 disk ├─sde2 8:66 0 1.8T 0 part └─sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk ├─sdc2 8:34 0 372G 0 part /home ├─sdc5 8:37 0 9.5G 0 part [SWAP] ├─sdc3 8:35 0 1K 0 part └─sdc1 8:33 0 95.4G 0 part / ➜ ~ lsblk -e 7,8 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 1024M 0 rom
lsblk -f, --fs , 输出设备的文件系统信息
同lsblk -o NAME,FSTYPE,LABEL,UUID,MOUNTPOINT
➜ ~ lsblk -f NAME FSTYPE LABEL UUID MOUNTPOINT loop1 squashfs /snap/kata-containers/288 sdd └─sdd1 ntfs Volume2 CA9015A6901599D1 sdb ├─sdb2 ntfs 30EAC3FEEAC3BE7A └─sdb1 ntfs OS_WIN10 0600EC5800EC4FEB loop4 squashfs /snap/kata-containers/352 sr0 loop2 squashfs /snap/core/6818 loop0 squashfs /snap/core/6964 sde ├─sde2 ntfs 专用存储 B6D47A52D47A1539 └─sde1 sdc ├─sdc2 ext4 53842090-4ad6-4472-ad35-53b4d7b33bf8 /home ├─sdc5 swap 382e4b22-503e-4911-bf2f-1167af3f3cda [SWAP] ├─sdc3 └─sdc1 ext4 6b5618d0-a2b0-41f3-a3a5-9eb5a524b0a8 / loop3 squashfs /snap/core/6673
lsblk -I , --include list ,打印major id列表
➜ ~ lsblk -I 7,8 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk └─sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk ├─sdb2 8:18 0 915M 0 part └─sdb1 8:17 0 118.4G 0 part loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk ├─sde2 8:66 0 1.8T 0 part └─sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk ├─sdc2 8:34 0 372G 0 part /home ├─sdc5 8:37 0 9.5G 0 part [SWAP] ├─sdc3 8:35 0 1K 0 part └─sdc1 8:33 0 95.4G 0 part / loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -i , --ascii ,将输出信息的字符用ascii码打印
➜ ~ lsblk -i NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk `-sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk |-sdb2 8:18 0 915M 0 part `-sdb1 8:17 0 118.4G 0 part loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk |-sde2 8:66 0 1.8T 0 part `-sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk |-sdc2 8:34 0 372G 0 part /home |-sdc5 8:37 0 9.5G 0 part [SWAP] |-sdc3 8:35 0 1K 0 part `-sdc1 8:33 0 95.4G 0 part / loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -J , --json 用json格式输出
➜ ~ lsblk -J { "blockdevices": [ {"name": "loop1", "maj:min": "7:1", "rm": "0", "size": "55.8M", "ro": "1", "type": "loop", "mountpoint": "/snap/kata-containers/288"}, {"name": "sdd", "maj:min": "8:48", "rm": "0", "size": "1.8T", "ro": "0", "type": "disk", "mountpoint": null, "children": [ {"name": "sdd1", "maj:min": "8:49", "rm": "0", "size": "1.8T", "ro": "0", "type": "part", "mountpoint": null} ] }, {"name": "sdb", "maj:min": "8:16", "rm": "0", "size": "119.2G", "ro": "0", "type": "disk", "mountpoint": null, "children": [ {"name": "sdb2", "maj:min": "8:18", "rm": "0", "size": "915M", "ro": "0", "type": "part", "mountpoint": null}, {"name": "sdb1", "maj:min": "8:17", "rm": "0", "size": "118.4G", "ro": "0", "type": "part", "mountpoint": null} ] }, {"name": "loop4", "maj:min": "7:4", "rm": "0", "size": "69.8M", "ro": "1", "type": "loop", "mountpoint": "/snap/kata-containers/352"}, {"name": "sr0", "maj:min": "11:0", "rm": "1", "size": "1024M", "ro": "0", "type": "rom", "mountpoint": null}, {"name": "loop2", "maj:min": "7:2", "rm": "0", "size": "89.4M", "ro": "1", "type": "loop", "mountpoint": "/snap/core/6818"}, {"name": "loop0", "maj:min": "7:0", "rm": "0", "size": "88.4M", "ro": "1", "type": "loop", "mountpoint": "/snap/core/6964"}, {"name": "sde", "maj:min": "8:64", "rm": "0", "size": "1.8T", "ro": "0", "type": "disk", "mountpoint": null, "children": [ {"name": "sde2", "maj:min": "8:66", "rm": "0", "size": "1.8T", "ro": "0", "type": "part", "mountpoint": null}, {"name": "sde1", "maj:min": "8:65", "rm": "0", "size": "128M", "ro": "0", "type": "part", "mountpoint": null} ] }, {"name": "sdc", "maj:min": "8:32", "rm": "0", "size": "477G", "ro": "0", "type": "disk", "mountpoint": null, "children": [ {"name": "sdc2", "maj:min": "8:34", "rm": "0", "size": "372G", "ro": "0", "type": "part", "mountpoint": "/home"}, {"name": "sdc5", "maj:min": "8:37", "rm": "0", "size": "9.5G", "ro": "0", "type": "part", "mountpoint": "[SWAP]"}, {"name": "sdc3", "maj:min": "8:35", "rm": "0", "size": "1K", "ro": "0", "type": "part", "mountpoint": null}, {"name": "sdc1", "maj:min": "8:33", "rm": "0", "size": "95.4G", "ro": "0", "type": "part", "mountpoint": "/"} ] }, {"name": "loop3", "maj:min": "7:3", "rm": "0", "size": "89.3M", "ro": "1", "type": "loop", "mountpoint": "/snap/core/6673"} ] }
lsblk -l, --list , 打印一个表格格式的输出
➜ ~ lsblk -l NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk sdb2 8:18 0 915M 0 part sdb1 8:17 0 118.4G 0 part loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk sde2 8:66 0 1.8T 0 part sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk sdc2 8:34 0 372G 0 part /home sdc5 8:37 0 9.5G 0 part [SWAP] sdc3 8:35 0 1K 0 part sdc1 8:33 0 95.4G 0 part / loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -m, --perms , 输出设备的权限,属主属组信息
同lsblk -o NAME,SIZE,OWNER,GROUP,MODE
➜ ~ lsblk -m NAME SIZE OWNER GROUP MODE loop1 55.8M root disk brw-rw---- sdd 1.8T root disk brw-rw---- └─sdd1 1.8T root disk brw-rw---- sdb 119.2G root disk brw-rw---- ├─sdb2 915M root disk brw-rw---- └─sdb1 118.4G root disk brw-rw---- loop4 69.8M root disk brw-rw---- sr0 1024M root cdrom brw-rw---- loop2 89.4M root disk brw-rw---- loop0 88.4M root disk brw-rw---- sde 1.8T root disk brw-rw---- ├─sde2 1.8T root disk brw-rw---- └─sde1 128M root disk brw-rw---- sdc 477G root disk brw-rw---- ├─sdc2 372G root disk brw-rw---- ├─sdc5 9.5G root disk brw-rw---- ├─sdc3 1K root disk brw-rw---- └─sdc1 95.4G root disk brw-rw---- loop3 89.3M root disk brw-rw----
lsblk -n, --noheadings, 不打印标题
➜ ~ lsblk -n loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk └─sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk ├─sdb2 8:18 0 915M 0 part └─sdb1 8:17 0 118.4G 0 part loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk ├─sde2 8:66 0 1.8T 0 part └─sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk ├─sdc2 8:34 0 372G 0 part /home ├─sdc5 8:37 0 9.5G 0 part [SWAP] ├─sdc3 8:35 0 1K 0 part └─sdc1 8:33 0 95.4G 0 part / loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -o , --output list, 打印指定字段细腻系,
或者lsblk -o +UUID, 表示在默认输出的后边加一列字段名为UUID的信息
➜ ~ lsblk -o +UUID NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT UUID loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk └─sdd1 8:49 0 1.8T 0 part CA9015A6901599D1 sdb 8:16 0 119.2G 0 disk ├─sdb2 8:18 0 915M 0 part 30EAC3FEEAC3BE7A └─sdb1 8:17 0 118.4G 0 part 0600EC5800EC4FEB loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk ├─sde2 8:66 0 1.8T 0 part B6D47A52D47A1539 └─sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk ├─sdc2 8:34 0 372G 0 part /home 53842090-4ad6-4472-ad35-53b4d7b33bf8 ├─sdc5 8:37 0 9.5G 0 part [SWAP] 382e4b22-503e-4911-bf2f-1167af3f3cda ├─sdc3 8:35 0 1K 0 part └─sdc1 8:33 0 95.4G 0 part / 6b5618d0-a2b0-41f3-a3a5-9eb5a524b0a8 loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -O, --output-all,输出所有列的信息
➜ ~ lsblk -O NAME KNAME MAJ:MIN FSTYPE MOUNTPOINT LABEL UUID PARTTYPE PARTLABEL PARTUUID PARTFLAGS RA RO RM HOTPLUG MODEL SERIAL SIZE STATE OWNER GROUP MODE ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE TYPE DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO WSAME WWN RAND PKNAME HCTL TRAN SUBSYSTEMS REV VENDOR loop1 loop1 7:1 squashfs /snap/kata 128 1 0 0 55.8M root disk brw-rw---- 0 512 0 512 512 1 none 128 loop 0 4K 4G 0 0B 0 block sdd sdd 8:48 128 0 0 0 ST2000DM0 WFL10Z4B 1.8T runni root disk brw-rw---- 0 4096 0 4096 512 1 cfq 128 disk 0 4K 2G 0 0B 0x5000c500be0e12fc 1 2:0:0:0 sata block:scsi:pci │ 0001 ATA └─sdd1 sdd1 8:49 ntfs Volume2 CA9015A6901599D1 ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 Basic data partition fbbcfa40-06d8-4d43-9b2e-18b04089e30d 128 0 0 0 1.8T root disk brw-rw---- 0 4096 0 4096 512 1 cfq 128 part 0 4K 2G 0 0B 0x5000c500be0e12fc 1 sdd block:scsi:pci sdb sdb 8:16 128 0 0 0 M4-CT128M 000000001 119.2G runni root disk brw-rw---- 0 512 0 512 512 0 cfq 128 disk 0 512B 2G 0 0B 0x500a075109112598 0 0:0:0:0 sata block:scsi:pci │ 000F ATA ├─sdb2 sdb2 8:18 ntfs 30EAC3FEEAC3BE7A 0x27 4051264b-02 128 0 0 0 915M root disk brw-rw---- 0 512 0 512 512 0 cfq 128 part 0 512B 2G 0 0B 0x500a075109112598 0 sdb block:scsi:pci │ └─sdb1 sdb1 8:17 ntfs OS_WIN10 0600EC5800EC4FEB 0x7 4051264b-01 0x80 128 0 0 0 118.4G root disk brw-rw---- 0 512 0 512 512 0 cfq 128 part 0 512B 2G 0 0B 0x500a075109112598 0 sdb block:scsi:pci loop4 loop4 7:4 squashfs /snap/kata 128 1 0 0 69.8M root disk brw-rw---- 0 512 0 512 512 1 none 128 loop 0 4K 4G 0 0B 0 block sr0 sr0 11:0 128 0 1 1 DRW-24D3S KSTD3N812 1024M runni root cdrom brw-rw---- 0 512 0 512 512 1 cfq 128 rom 0 0B 0B 0 0B 0x5001480000000000 1 5:0:0:0 sata block:scsi:pci 1.01 ASUS loop2 loop2 7:2 squashfs /snap/core 128 1 0 0 89.4M root disk brw-rw---- 0 512 0 512 512 1 none 128 loop 0 4K 4G 0 0B 0 block loop0 loop0 7:0 squashfs /snap/core 128 1 0 0 88.4M root disk brw-rw---- 0 512 0 512 512 1 none 128 loop 0 4K 4G 0 0B 0 block sde sde 8:64 128 0 0 0 WDC WD20E WD-WCC4ML 1.8T runni root disk brw-rw---- 0 4096 0 4096 512 1 cfq 128 disk 0 0B 0B 0 0B 0x50014ee2b52d7844 1 4:0:0:0 sata block:scsi:pci │ 0A80 ATA ├─sde2 sde2 8:66 ntfs 专用存储 B6D47A52D47A1539 ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 Basic data partition │ 42732d06-bb6d-4e0c-80fc-5e2746300ea7 128 0 0 0 1.8T root disk brw-rw---- 0 4096 0 4096 512 1 cfq 128 part 0 0B 0B 0 0B 0x50014ee2b52d7844 1 sde block:scsi:pci │ └─sde1 sde1 8:65 e3c9e316-0b5c-4db8-817d-f92df00215ae Microsoft reserved partition 731fb900-205e-4c54-b9c7-b78946f2ac12 128 0 0 0 128M root disk brw-rw---- 3072 4096 0 4096 512 1 cfq 128 part 0 0B 0B 0 0B 0x50014ee2b52d7844 1 sde block:scsi:pci sdc sdc 8:32 128 0 0 0 INTEL SSD BTLA82430 477G runni root disk brw-rw---- 0 512 0 512 512 0 cfq 128 disk 0 512B 2G 0 0B 0x55cd2e414f7acc09 0 1:0:0:0 sata block:scsi:pci │ 002C ATA ├─sdc2 sdc2 8:34 ext4 /home 53842090-4ad6-4472-ad35-53b4d7b33bf8 0x83 2ab59d7a-02 128 0 0 0 372G root disk brw-rw---- 0 512 0 512 512 0 cfq 128 part 0 512B 2G 0 0B 0x55cd2e414f7acc09 0 sdc block:scsi:pci │ ├─sdc5 sdc5 8:37 swap [SWAP] 382e4b22-503e-4911-bf2f-1167af3f3cda 0x82 2ab59d7a-05 128 0 0 0 9.5G root disk brw-rw---- 0 512 0 512 512 0 cfq 128 part 0 512B 2G 0 0B 0x55cd2e414f7acc09 0 sdc block:scsi:pci │ ├─sdc3 sdc3 8:35 0x5 2ab59d7a-03 128 0 0 0 1K root disk brw-rw---- 0 512 0 512 512 0 cfq 128 part 0 512B 2G 0 0B 0x55cd2e414f7acc09 0 sdc block:scsi:pci │ └─sdc1 sdc1 8:33 ext4 / 6b5618d0-a2b0-41f3-a3a5-9eb5a524b0a8 0x83 2ab59d7a-01 0x80 128 0 0 0 95.4G root disk brw-rw---- 0 512 0 512 512 0 cfq 128 part 0 512B 2G 0 0B 0x55cd2e414f7acc09 0 sdc block:scsi:pci loop3 loop3 7:3 squashfs /snap/core 128 1 0 0 89.3M root disk brw-rw---- 0 512 0 512 512 1 none 128 loop 0 4K 4G 0 0B 0 block
lsblk -P, --pairs 打印成html需要的unsafe格式字符
➜ ~ lsblk -P NAME="loop1" MAJ:MIN="7:1" RM="0" SIZE="55.8M" RO="1" TYPE="loop" MOUNTPOINT="/snap/kata-containers/288" NAME="sdd" MAJ:MIN="8:48" RM="0" SIZE="1.8T" RO="0" TYPE="disk" MOUNTPOINT="" NAME="sdd1" MAJ:MIN="8:49" RM="0" SIZE="1.8T" RO="0" TYPE="part" MOUNTPOINT="" NAME="sdb" MAJ:MIN="8:16" RM="0" SIZE="119.2G" RO="0" TYPE="disk" MOUNTPOINT="" NAME="sdb2" MAJ:MIN="8:18" RM="0" SIZE="915M" RO="0" TYPE="part" MOUNTPOINT="" NAME="sdb1" MAJ:MIN="8:17" RM="0" SIZE="118.4G" RO="0" TYPE="part" MOUNTPOINT="" NAME="loop4" MAJ:MIN="7:4" RM="0" SIZE="69.8M" RO="1" TYPE="loop" MOUNTPOINT="/snap/kata-containers/352" NAME="sr0" MAJ:MIN="11:0" RM="1" SIZE="1024M" RO="0" TYPE="rom" MOUNTPOINT="" NAME="loop2" MAJ:MIN="7:2" RM="0" SIZE="89.4M" RO="1" TYPE="loop" MOUNTPOINT="/snap/core/6818" NAME="loop0" MAJ:MIN="7:0" RM="0" SIZE="88.4M" RO="1" TYPE="loop" MOUNTPOINT="/snap/core/6964" NAME="sde" MAJ:MIN="8:64" RM="0" SIZE="1.8T" RO="0" TYPE="disk" MOUNTPOINT="" NAME="sde2" MAJ:MIN="8:66" RM="0" SIZE="1.8T" RO="0" TYPE="part" MOUNTPOINT="" NAME="sde1" MAJ:MIN="8:65" RM="0" SIZE="128M" RO="0" TYPE="part" MOUNTPOINT="" NAME="sdc" MAJ:MIN="8:32" RM="0" SIZE="477G" RO="0" TYPE="disk" MOUNTPOINT="" NAME="sdc2" MAJ:MIN="8:34" RM="0" SIZE="372G" RO="0" TYPE="part" MOUNTPOINT="/home" NAME="sdc5" MAJ:MIN="8:37" RM="0" SIZE="9.5G" RO="0" TYPE="part" MOUNTPOINT="[SWAP]" NAME="sdc3" MAJ:MIN="8:35" RM="0" SIZE="1K" RO="0" TYPE="part" MOUNTPOINT="" NAME="sdc1" MAJ:MIN="8:33" RM="0" SIZE="95.4G" RO="0" TYPE="part" MOUNTPOINT="/" NAME="loop3" MAJ:MIN="7:3" RM="0" SIZE="89.3M" RO="1" TYPE="loop" MOUNTPOINT="/snap/core/6673"
lsblk -p, --paths, 打印设备的全部路径
➜ ~ lsblk -p NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT /dev/loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 /dev/sdd 8:48 0 1.8T 0 disk └─/dev/sdd1 8:49 0 1.8T 0 part /dev/sdb 8:16 0 119.2G 0 disk ├─/dev/sdb2 8:18 0 915M 0 part └─/dev/sdb1 8:17 0 118.4G 0 part /dev/loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 /dev/sr0 11:0 1 1024M 0 rom /dev/loop2 7:2 0 89.4M 1 loop /snap/core/6818 /dev/loop0 7:0 0 88.4M 1 loop /snap/core/6964 /dev/sde 8:64 0 1.8T 0 disk ├─/dev/sde2 8:66 0 1.8T 0 part └─/dev/sde1 8:65 0 128M 0 part /dev/sdc 8:32 0 477G 0 disk ├─/dev/sdc2 8:34 0 372G 0 part /home ├─/dev/sdc5 8:37 0 9.5G 0 part [SWAP] ├─/dev/sdc3 8:35 0 1K 0 part └─/dev/sdc1 8:33 0 95.4G 0 part / /dev/loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -r, --raw , 裸格式输出
➜ ~ lsblk -r NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd 8:48 0 1.8T 0 disk sdd1 8:49 0 1.8T 0 part sdb 8:16 0 119.2G 0 disk sdb2 8:18 0 915M 0 part sdb1 8:17 0 118.4G 0 part loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde 8:64 0 1.8T 0 disk sde2 8:66 0 1.8T 0 part sde1 8:65 0 128M 0 part sdc 8:32 0 477G 0 disk sdc2 8:34 0 372G 0 part /home sdc5 8:37 0 9.5G 0 part [SWAP] sdc3 8:35 0 1K 0 part sdc1 8:33 0 95.4G 0 part / loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -S, --scsi 输出scsi设备(物理设备)的信息
➜ ~ lsblk -S NAME HCTL TYPE VENDOR MODEL REV TRAN sdd 2:0:0:0 disk ATA ST2000DM008-2FR1 0001 sata sdb 0:0:0:0 disk ATA M4-CT128M4SSD1 000F sata sr0 5:0:0:0 rom ASUS DRW-24D3ST 1.01 sata sde 4:0:0:0 disk ATA WDC WD20EZRX-00D 0A80 sata sdc 1:0:0:0 disk ATA INTEL SSDSC2KW51 002C sata
lsblk -s, --inverse , 打印分区的依赖设备反序列输出,分区指向设备.
➜ ~ lsblk -s NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 sdd1 8:49 0 1.8T 0 part └─sdd 8:48 0 1.8T 0 disk sdb2 8:18 0 915M 0 part └─sdb 8:16 0 119.2G 0 disk sdb1 8:17 0 118.4G 0 part └─sdb 8:16 0 119.2G 0 disk loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 sr0 11:0 1 1024M 0 rom loop2 7:2 0 89.4M 1 loop /snap/core/6818 loop0 7:0 0 88.4M 1 loop /snap/core/6964 sde2 8:66 0 1.8T 0 part └─sde 8:64 0 1.8T 0 disk sde1 8:65 0 128M 0 part └─sde 8:64 0 1.8T 0 disk sdc2 8:34 0 372G 0 part /home └─sdc 8:32 0 477G 0 disk sdc5 8:37 0 9.5G 0 part [SWAP] └─sdc 8:32 0 477G 0 disk sdc3 8:35 0 1K 0 part └─sdc 8:32 0 477G 0 disk sdc1 8:33 0 95.4G 0 part / └─sdc 8:32 0 477G 0 disk loop3 7:3 0 89.3M 1 loop /snap/core/6673
lsblk -t, --topology 打印块设备的拓扑结构.
同 lsblk -o NAME,ALIGN-MENT,MIN-IO,OPT-IO,PHY-SEC,LOG-SEC,ROTA,SCHED,RQ-SIZE,RA,WSAME.
➜ ~ lsblk -t NAME ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE RA WSAME loop1 0 512 0 512 512 1 none 128 128 0B sdd 0 4096 0 4096 512 1 cfq 128 128 0B └─sdd1 0 4096 0 4096 512 1 cfq 128 128 0B sdb 0 512 0 512 512 0 cfq 128 128 0B ├─sdb2 0 512 0 512 512 0 cfq 128 128 0B └─sdb1 0 512 0 512 512 0 cfq 128 128 0B loop4 0 512 0 512 512 1 none 128 128 0B sr0 0 512 0 512 512 1 cfq 128 128 0B loop2 0 512 0 512 512 1 none 128 128 0B loop0 0 512 0 512 512 1 none 128 128 0B sde 0 4096 0 4096 512 1 cfq 128 128 0B ├─sde2 0 4096 0 4096 512 1 cfq 128 128 0B └─sde1 3072 4096 0 4096 512 1 cfq 128 128 0B sdc 0 512 0 512 512 0 cfq 128 128 0B ├─sdc2 0 512 0 512 512 0 cfq 128 128 0B ├─sdc5 0 512 0 512 512 0 cfq 128 128 0B ├─sdc3 0 512 0 512 512 0 cfq 128 128 0B └─sdc1 0 512 0 512 512 0 cfq 128 128 0B loop3 0 512 0 512 512 1 none 128 128 0B
lsblk -V, --version 查看版本号
➜ ~ lsblk -V lsblk，来自 util-linux 2.27.1
lsblk -x, --sort colum, 指定字段对输出信息排序
➜ ~ lsblk -S -x NAME NAME HCTL TYPE VENDOR MODEL REV TRAN sdb 0:0:0:0 disk ATA M4-CT128M4SSD1 000F sata sdc 1:0:0:0 disk ATA INTEL SSDSC2KW51 002C sata sdd 2:0:0:0 disk ATA ST2000DM008-2FR1 0001 sata sde 4:0:0:0 disk ATA WDC WD20EZRX-00D 0A80 sata sr0 5:0:0:0 rom ASUS DRW-24D3ST 1.01 sata
应用场景:
-
确认从磁盘上会否ssd
lsblk -d -o +rota
➜ ~ lsblk -d -o +rota NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT ROTA loop1 7:1 0 55.8M 1 loop /snap/kata-containers/288 1 sdd 8:48 0 1.8T 0 disk 1 sdb 8:16 0 119.2G 0 disk 0 loop4 7:4 0 69.8M 1 loop /snap/kata-containers/352 1 sr0 11:0 1 1024M 0 rom 1 loop2 7:2 0 89.4M 1 loop /snap/core/6818 1 loop0 7:0 0 88.4M 1 loop /snap/core/6964 1 sde 8:64 0 1.8T 0 disk 1 sdc 8:32 0 477G 0 disk 0 loop3 7:3 0 89.3M 1 loop /snap/core/6673 1
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