diff --git a/chain/gen/genesis/miners.go b/chain/gen/genesis/miners.go
index 51a128d54d1..26f52eae0f3 100644
--- a/chain/gen/genesis/miners.go
+++ b/chain/gen/genesis/miners.go
@@ -239,6 +239,9 @@ func SetupStorageMiners(ctx context.Context, cs *store.ChainStore, sroot cid.Cid
 		st.TotalQualityAdjPower = big.Sub(st.TotalQualityAdjPower, big.NewInt(1))
 		return nil
 	})
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("mutating state: %w", err)
+	}
 
 	c, err := vm.Flush(ctx)
 	if err != nil {
diff --git a/cli/chain.go b/cli/chain.go
index cbdd957e9fa..0dfcb926a9d 100644
--- a/cli/chain.go
+++ b/cli/chain.go
@@ -221,6 +221,9 @@ var chainStatObjCmd = &cli.Command{
 		base := cid.Undef
 		if cctx.IsSet("base") {
 			base, err = cid.Decode(cctx.String("base"))
+			if err != nil {
+				return err
+			}
 		}
 
 		stats, err := api.ChainStatObj(ctx, obj, base)
diff --git a/cli/state.go b/cli/state.go
index 6b5c9035b9e..910b9557a5e 100644
--- a/cli/state.go
+++ b/cli/state.go
@@ -359,7 +359,7 @@ var stateReplaySetCmd = &cli.Command{
 			return fmt.Errorf("message cid was invalid: %s", err)
 		}
 
-		api, closer, err := GetFullNodeAPI(cctx)
+		fapi, closer, err := GetFullNodeAPI(cctx)
 		if err != nil {
 			return err
 		}
@@ -381,7 +381,7 @@ var stateReplaySetCmd = &cli.Command{
 			if len(tscids) > 0 {
 				var headers []*types.BlockHeader
 				for _, c := range tscids {
-					h, err := api.ChainGetBlock(ctx, c)
+					h, err := fapi.ChainGetBlock(ctx, c)
 					if err != nil {
 						return err
 					}
@@ -391,12 +391,13 @@ var stateReplaySetCmd = &cli.Command{
 
 				ts, err = types.NewTipSet(headers)
 			} else {
-				r, err := api.StateWaitMsg(ctx, mcid)
+				var r *api.MsgLookup
+				r, err = fapi.StateWaitMsg(ctx, mcid)
 				if err != nil {
 					return xerrors.Errorf("finding message in chain: %w", err)
 				}
 
-				ts, err = api.ChainGetTipSet(ctx, r.TipSet.Parents())
+				ts, err = fapi.ChainGetTipSet(ctx, r.TipSet.Parents())
 			}
 			if err != nil {
 				return err
@@ -404,7 +405,7 @@ var stateReplaySetCmd = &cli.Command{
 
 		}
 
-		res, err := api.StateReplay(ctx, ts.Key(), mcid)
+		res, err := fapi.StateReplay(ctx, ts.Key(), mcid)
 		if err != nil {
 			return xerrors.Errorf("replay call failed: %w", err)
 		}
diff --git a/cli/wallet.go b/cli/wallet.go
index f9f749d72d1..ccca4d23d4a 100644
--- a/cli/wallet.go
+++ b/cli/wallet.go
@@ -113,7 +113,12 @@ var walletBalance = &cli.Command{
 			return err
 		}
 
-		fmt.Printf("%s\n", types.FIL(balance))
+		if balance.Equals(types.NewInt(0)) {
+			fmt.Printf("%s (warning: may display 0 if chain sync in progress)\n", types.FIL(balance))
+		} else {
+			fmt.Printf("%s\n", types.FIL(balance))
+		}
+
 		return nil
 	},
 }
diff --git a/cmd/lotus-storage-miner/proving.go b/cmd/lotus-storage-miner/proving.go
index 7cfa010b9a3..d419efd7b62 100644
--- a/cmd/lotus-storage-miner/proving.go
+++ b/cmd/lotus-storage-miner/proving.go
@@ -15,7 +15,8 @@ import (
 )
 
 var provingCmd = &cli.Command{
-	Name: "proving",
+	Name:  "proving",
+	Usage: "View proving information",
 	Subcommands: []*cli.Command{
 		provingInfoCmd,
 		provingDeadlinesCmd,
@@ -23,7 +24,8 @@ var provingCmd = &cli.Command{
 }
 
 var provingInfoCmd = &cli.Command{
-	Name: "info",
+	Name:  "info",
+	Usage: "View current state information",
 	Action: func(cctx *cli.Context) error {
 		nodeApi, closer, err := lcli.GetStorageMinerAPI(cctx)
 		if err != nil {
@@ -145,7 +147,8 @@ func epochTime(curr, e abi.ChainEpoch) string {
 }
 
 var provingDeadlinesCmd = &cli.Command{
-	Name: "deadlines",
+	Name:  "deadlines",
+	Usage: "View the current proving period deadlines information",
 	Action: func(cctx *cli.Context) error {
 		nodeApi, closer, err := lcli.GetStorageMinerAPI(cctx)
 		if err != nil {