findfs
locate filesystems by label or UUID
TLDR
Find device by filesystem label
$ findfs LABEL=[label]
Find device by filesystem UUID$ findfs UUID=[uuid]
Find device by GPT partition label$ findfs PARTLABEL=[partition_label]
Find device by GPT partition UUID$ findfs PARTUUID=[partition_uuid]
SYNOPSIS
findfs tag=value
DESCRIPTION
findfs finds a filesystem by label or UUID and prints the device path. It searches all block devices for matching filesystem metadata.Used in boot scripts and mount operations to locate filesystems reliably.
PARAMETERS
LABEL=label
Search by filesystem labelUUID=uuid
Search by filesystem UUIDPARTLABEL=label
Search by GPT/MAC partition labelPARTUUID=uuid
Search by GPT partition UUID
INSTALL
sudo apt install util-linux
sudo dnf install util-linux
sudo pacman -S util-linux
sudo apk add util-linux-misc
sudo zypper install util-linux
brew install util-linux
nix profile install nixpkgs#util-linux
CAVEATS
Part of util-linux. PARTUUID only available on GPT partition tables. Labels and UUIDs must be unique for reliable matching.
