In this video, Kevin Dankwardt list contents of /dev/disk (made by udev), which has subdirectories by-id, by-partlabel, by-partuuid, by-path, and by-uuid. He also demonstrates the commands blkid and lsblk.
- [Instructor] Let's look at identifying storage.…That is, identifying your disks.…Well, there's a good bit of information,…like UUID information in dev disk.…The used space device demon is responsible for creating lots…of stuff underneath dev, like device files…when the system detects disks,…including disks that get plugged in dynamically,…like a USB disk.…So underneath dev disk there's directories…where there's entries for your disk,…based on their ID and labels and so forth.…
So, if you're trying to figure out…which disk is which, you might be able…to get information that's sufficient there.…Say, before you unplug a disk.…There's also a command blkid to give you information…and lsblk, which list partitions…and sizes and even the mountpoint,…for things that are mounted.…The sys file system has, in general,…information about hardware devices and drivers.…
The subdirectory block is what the kernel knows…about block devices.…There's an entry in there for each block device,…including partitions that the kernel sees.…
- Partitioning storage
- Creating, mounting, and unmounting file systems
- Formatting file systems
- Making volumes with LVM
- Adding storage security
- Managing swap spaces
- Backing up and recovering Linux storage systems
- Working with networked file systems like NFS and SSHFS
Skill Level Intermediate
Linux: Bash Shell and Scriptswith Kevin Dankwardt2h 46m Intermediate
Linux: Multitasking at the Command Linewith Scott Simpson39m 1s Intermediate
1. Disk Partitions, Formatting, and Mounting
2. Logical Volume Manager (LVM)
3. Security and Resource Constraints
4. Special Storage Features and Considerations
5. Networked File Systems
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