minio/pkg/disk/root-disk-unix.go

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// +build !windows
package disk
import (
"os"
"syscall"
)
// IsRootDisk returns if diskPath belongs to root-disk, i.e the disk mounted at "/"
func IsRootDisk(diskPath string) (bool, error) {
rootDisk := false
diskInfo, err := os.Stat(diskPath)
if err != nil {
return false, err
}
rootInfo, err := os.Stat("/")
if err != nil {
return false, err
}
diskStat, diskStatOK := diskInfo.Sys().(*syscall.Stat_t)
rootStat, rootStatOK := rootInfo.Sys().(*syscall.Stat_t)
if diskStatOK && rootStatOK {
if diskStat.Dev == rootStat.Dev {
// Indicate if the disk path is on root disk. This is used to indicate the healing
// process not to format the drive and end up healing it.
rootDisk = true
}
}
return rootDisk, nil
}