devsdb2

/dev/sdb2 is the second partition on the second SCSI/SATA disk recognized by a Linux system. In Linux device naming, disks are labeled /dev/sdX (where X is a letter such as a, b, c) and partitions on a disk are numbered, so /dev/sdb2 refers to the second partition on the disk /dev/sdb. The exact device node can change if drives are added, removed, or reordered, which is why mounting and operations often rely on stable identifiers like UUIDs or filesystem labels rather than the raw /dev path.

A partition such as /dev/sdb2 typically contains a filesystem, which can be ext4, XFS, Btrfs, NTFS, FAT32, or another supported type. It may be used for data storage, a separate home directory, a system partition, or other purposes. In some configurations, /dev/sdb2 could be part of a software RAID array or a physical volume for LVM, though that depends on how the disk was prepared.

To determine the filesystem and status of /dev/sdb2, administrators commonly use tools such as lsblk, blkid, or fdisk -l. For reliable mounting, the UUID or filesystem label can be used in place of the device path. For example, a system might mount the partition with an entry like UUID=abcdef01-2345-6789-abcd-ef0123456789 /mnt/storage ext4 defaults 0 2 in /etc/fstab, or mount by UUID at runtime.

Mounting, resizing, and filesystem maintenance can be performed with standard Linux utilities (mount, umount; resize2fs, xfs_growfs; parted or fdisk for partition changes). Caution is advised, as modifying partitions can lead to data loss without proper backups.