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This article mainly shows you "how to view the disk file system format under Linux", the content is easy to understand, well-organized, hope to help you solve your doubts, the following let Xiaobian lead you to study and learn "how to view disk file system format under Linux" this article.

There are many types of file systems, each with different structure, logic, access speed, flexibility, security, size, and so on. File systems can be used in magnetic tapes, removable hard drives, flash memory, etc. In short, there are many and complex categories of file systems.

Df-T can only view mounted partitions and file system types. Try `df-- help' for more information. [root@localhost huanghai] # df-TFilesystem Type 1K-blocks Used Available Use% Mounted on/dev/sda3 ext4 541474624 431342832 82619832 84% / tmpfs tmpfs 16315340 627124 15688216% / dev/shm/dev/sda1 ext4 99932064356 882536.7% / boot/dev/sdb1 ext4 4755888276 193163092 43211333285% / data / dev/sdc1 ext4 107406275100 53236939356 48798242192 53% / usr/local/tomcat7/webapps/dsideal_yy/html/downfdisk-l shows all mounted and unmounted partitions However, the file system type is not displayed. [root@localhost huanghai] # fdisk-lDisk / dev/sda: 598.9 GB, 598879502336 bytes255 heads, 63 sectors/track 72809 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x000ccf9c Device Boot Start End Blocks Id System/dev/sda1 * 1131 1048576 83 LinuxPartition 1 does not end on cylinder boundary./dev/sda2 4309 33554432 82 Linux swap / Solaris/dev/sda3 4309 72810 550239232 83 LinuxWARNING: GPT (GUID Partition Table) detected on'/ devplink sdbstores! The util fdisk doesn't support GPT. Use GNU Parted.Disk / dev/sdb: 4947.8 GB, 4947802324992 bytes256 heads, 63 sectors/track, 599186 cylindersUnits = cylinders of 16128 * 512 = 8257536 bytesSector size (logical/physical): 512 bytes / 4096 bytesI/O size (minimum/optimal): 4096 bytes / 4096 bytesDisk identifier: 0x00000000 Device Boot Start End Blocks Id System/dev/sdb1 1 266306 2147483647 + ee GPTPartition 1 does not start on physical sector boundary.WARNING: GPT (GUID Partition Table) detected on'/ devUniverse! The util fdisk doesn't support GPT. Use GNU Parted.Disk / dev/sdc: 110000.0 GB, 109999997059072 bytes256 heads, 63 sectors/track, 13321164 cylindersUnits = cylinders of 16128512 = 8257536 bytesSector size (logical/physical): 512 bytes / 4096 bytesI/O size (minimum/optimal): 4096 bytes / 1048576 bytesDisk identifier: 0x00000000 Device Boot Start End Blocks Id System/dev/sdc1 1266306 2147483647 + ee GPTPartition 1 does not start on physical sector boundary. Switch to gdisk and try [root@localhost huanghai] # gdisk-l / dev/sdbGPT fdisk (gdisk) version 0.8.10Partition table scan: MBR: protective BSD: not present APM: not present GPT: presentFound valid GPT with protective MBR Using GPT.Disk / dev/sdb: 9663676416 sectors, 4.5 TiBLogical sector size: 512 bytesDisk identifier (GUID): BB32BC66-154F-40BC-A100-ADF169403ED0Partition table holds up to 128 entriesFirst usable sector is 34, last usable sector is 9663676382Partitions will be aligned on 2048-sector boundariesTotal free space is 2014 sectors (1007.0 KiB) Number Start (sector) End (sector) Size Code Name 1 20489663676382 4.5 TiB 8300 Linux filesystemparted-l can view unmounted file system types And which partitions have not been formatted. Model: DELL PERC H330 Mini (scsi) Disk / dev/sda: 599GBSector size (logical/physical): 512B/512BPartition Table: msdosNumber Start End Size Type File system Flags1 1049kB 1075MB 1074MB primary ext4 boot2 1075MB 35.4GB 34.4GB primary linux-swap (v1) 3 35.4GB 599GB 563GB primary ext4Model: DELL MD38xxf (scsi) Disk / dev/sdb: 4948GBSector size (logical/physical): 512B/4096BPartition Table: gptNumber Start End Size File system Name Flags1 1049kB 4948GB 4948GB ext4 Linux filesystemModel: HPE MSA 2050 SAN (scsi) Disk / dev/sdc: 110TBSector size (logical/physical): 512B/4096BPartition Table: gptNumber Start End Size File system Name Flags1 1049kB 110TB 110TB ext4 Linux filesystemlsblk-f can also view unmounted file system types. [root@localhost huanghai] # lsblk-fNAME FSTYPE LABEL UUID MOUNTPOINTsda ├─ sda1 ext4 bc5635e2-b09f-4ff7-9749-b856bc33ab04 / boot ├─ sda2 swap b025568d-9943-469c-92cf-1603ad89093e [SWAP] └─ sda3 ext4 2f14a976-3e63-4a59-83e4-ccab3e5bc049 / sdb └─ sdb1 ext4 d0b1d4d3-0284-4c48-9a23-ade65a571865 / datasdc └─ sdc1 ext4 c2432c06-6459-473c-a884-e912c0db87dd / usr/local/tomcat7/webapps/dsideal_yy/html/downsr0file-s / dev/sda3 [root@localhost huanghai] # file-s / dev / sda3/dev/sda3: Linux rev 1.0 ext4 filesystem data (needs journal recovery) (extents) (large files) (huge files) You have mail in / var/spool/mail/root are all the contents of the article "how to View disk File system formats under Linux" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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