diff --git a/pkg/archive/archive.go b/pkg/archive/archive.go index 986f014491..50f5ae2979 100644 --- a/pkg/archive/archive.go +++ b/pkg/archive/archive.go @@ -18,12 +18,14 @@ import ( "syscall" "time" + "github.com/containerd/containerd/pkg/userns" "github.com/docker/docker/pkg/fileutils" "github.com/docker/docker/pkg/idtools" "github.com/docker/docker/pkg/ioutils" "github.com/docker/docker/pkg/pools" "github.com/docker/docker/pkg/system" "github.com/klauspost/compress/zstd" + "github.com/pkg/errors" "github.com/sirupsen/logrus" exec "golang.org/x/sys/execabs" ) @@ -766,7 +768,11 @@ func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, L chownOpts = &idtools.Identity{UID: hdr.Uid, GID: hdr.Gid} } if err := os.Lchown(path, chownOpts.UID, chownOpts.GID); err != nil { - return err + msg := "failed to Lchown %q for UID %d, GID %d" + if errors.Is(err, syscall.EINVAL) && userns.RunningInUserNS() { + msg += " (try increasing the number of subordinate IDs in /etc/subuid and /etc/subgid)" + } + return errors.Wrapf(err, msg, path, hdr.Uid, hdr.Gid) } }