diff --git a/Dockerfile b/Dockerfile
index 9c9447fd..7669427e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 FROM metalstack/builder:latest as builder
 
-FROM registry.fi-ts.io/metal/supermicro:2.4.0 as sum
+FROM registry.fi-ts.io/metal/supermicro:2.5.0 as sum
 
-FROM golang:1.13-buster as initrd-builder
-ENV UROOT_GIT_SHA_OR_TAG=v6.0.0
+FROM golang:1.14-buster as initrd-builder
+ENV UROOT_GIT_SHA_OR_TAG=v7.0.0
 RUN apt-get update \
  && apt-get install -y --no-install-recommends \
 	curl \
diff --git a/Makefile b/Makefile
index 175b9c5a..26a95f79 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ clean::
 
 ${INITRD_COMPRESSED}:
 	rm -f ${INITRD_COMPRESSED}
-	docker-make --no-push --Lint --no-cache
+	docker-make --no-push --Lint
 
 .PHONY: initrd
 initrd: ${INITRD_COMPRESSED}
diff --git a/cmd/bios.go b/cmd/bios.go
index 3dec4cc0..27f27011 100644
--- a/cmd/bios.go
+++ b/cmd/bios.go
@@ -1,9 +1,10 @@
 package cmd
 
 import (
+	"time"
+
 	"github.com/metal-stack/metal-hammer/cmd/event"
 	"github.com/metal-stack/metal-hammer/pkg/kernel"
-	"time"
 
 	log "github.com/inconshreveable/log15"
 )
diff --git a/cmd/firmware/firmware.go b/cmd/firmware/firmware.go
index 70d6c9e7..fadaf87c 100644
--- a/cmd/firmware/firmware.go
+++ b/cmd/firmware/firmware.go
@@ -1,9 +1,10 @@
 package firmware
 
 import (
+	"os/exec"
+
 	log "github.com/inconshreveable/log15"
 	"github.com/pkg/errors"
-	"os/exec"
 )
 
 // updater check if a firmware update is required and updates
diff --git a/cmd/image/image.go b/cmd/image/image.go
index 972b4879..6bdf5035 100644
--- a/cmd/image/image.go
+++ b/cmd/image/image.go
@@ -2,19 +2,21 @@ package image
 
 import (
 	"fmt"
+
 	log "github.com/inconshreveable/log15"
 	"github.com/mholt/archiver"
 	lz4 "github.com/pierrec/lz4"
 	pb "gopkg.in/cheggaaa/pb.v1"
 
 	"crypto/md5"
-	"github.com/pkg/errors"
 	"io"
 	"io/ioutil"
 	"net/http"
 	"os"
 	"strings"
 	"time"
+
+	"github.com/pkg/errors"
 )
 
 // Pull a image from s3
diff --git a/cmd/network/ntpdate.go b/cmd/network/ntpdate.go
index 7fea9061..f316ddc7 100644
--- a/cmd/network/ntpdate.go
+++ b/cmd/network/ntpdate.go
@@ -2,10 +2,11 @@ package network
 
 import (
 	"fmt"
-	log "github.com/inconshreveable/log15"
 	"syscall"
 	"time"
 
+	log "github.com/inconshreveable/log15"
+
 	"github.com/beevik/ntp"
 )
 
diff --git a/cmd/reinstall.go b/cmd/reinstall.go
index 2f1be20a..55211b23 100644
--- a/cmd/reinstall.go
+++ b/cmd/reinstall.go
@@ -2,6 +2,9 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
+	"time"
+
 	log "github.com/inconshreveable/log15"
 	"github.com/jaypipes/ghw"
 	"github.com/metal-stack/metal-hammer/cmd/event"
@@ -10,8 +13,6 @@ import (
 	"github.com/metal-stack/metal-hammer/metal-core/models"
 	"github.com/metal-stack/metal-hammer/pkg/kernel"
 	"github.com/pkg/errors"
-	"strings"
-	"time"
 )
 
 // fetchMachine requests the machine data of given machine ID
diff --git a/cmd/storage/mount.go b/cmd/storage/mount.go
index 548e753f..df4ea377 100644
--- a/cmd/storage/mount.go
+++ b/cmd/storage/mount.go
@@ -1,11 +1,12 @@
 package storage
 
 import (
-	"github.com/pkg/errors"
 	"os"
 	"path/filepath"
 	"syscall"
 
+	"github.com/pkg/errors"
+
 	log "github.com/inconshreveable/log15"
 )
 
diff --git a/go.mod b/go.mod
index fae4224c..a5d86b46 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,7 @@
 module github.com/metal-stack/metal-hammer
 
+go 1.15
+
 require (
 	github.com/beevik/ntp v0.3.0
 	github.com/dsnet/compress v0.0.1 // indirect
@@ -28,7 +30,7 @@ require (
 	github.com/pierrec/lz4 v2.5.2+incompatible
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.6.1
-	github.com/u-root/u-root v6.0.0+incompatible
+	github.com/u-root/u-root v7.0.0+incompatible
 	github.com/vishvananda/netlink v1.1.0
 	github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae // indirect
 	golang.org/x/sys v0.0.0-20201117222635-ba5294a509c7
@@ -38,5 +40,3 @@ require (
 )
 
 replace github.com/mholt/archiver => github.com/mholt/archiver v2.1.0+incompatible
-
-go 1.15
diff --git a/go.sum b/go.sum
index 0f968920..91c36e7d 100644
--- a/go.sum
+++ b/go.sum
@@ -666,6 +666,8 @@ github.com/tidwall/pretty v1.0.1/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhV
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/u-root/u-root v6.0.0+incompatible h1:YqPGmRoRyYmeg17KIWFRSyVq6LX5T6GSzawyA6wG6EE=
 github.com/u-root/u-root v6.0.0+incompatible/go.mod h1:RYkpo8pTHrNjW08opNd/U6p/RJE7K0D8fXO0d47+3YY=
+github.com/u-root/u-root v7.0.0+incompatible h1:u+KSS04pSxJGI5E7WE4Bs9+Zd75QjFv+REkjy/aoAc8=
+github.com/u-root/u-root v7.0.0+incompatible/go.mod h1:RYkpo8pTHrNjW08opNd/U6p/RJE7K0D8fXO0d47+3YY=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
diff --git a/pkg/kernel/kernel.go b/pkg/kernel/kernel.go
index 238836c2..02676318 100644
--- a/pkg/kernel/kernel.go
+++ b/pkg/kernel/kernel.go
@@ -1,15 +1,16 @@
 package kernel
 
 import (
-	"github.com/pkg/errors"
 	"io/ioutil"
 	"os"
 	"strings"
 	"time"
 	"unsafe"
 
+	"github.com/pkg/errors"
+
 	log "github.com/inconshreveable/log15"
-	"github.com/u-root/u-root/pkg/kexec"
+	"github.com/u-root/u-root/pkg/boot/kexec"
 	"golang.org/x/sys/unix"
 	"gopkg.in/yaml.v2"
 )
diff --git a/pkg/lldp/client.go b/pkg/lldp/client.go
index 458ef837..f8f72e0a 100644
--- a/pkg/lldp/client.go
+++ b/pkg/lldp/client.go
@@ -2,13 +2,14 @@ package lldp
 
 import (
 	"fmt"
+	"net"
+	"time"
+
 	"github.com/google/gopacket"
 	"github.com/google/gopacket/layers"
 	"github.com/google/gopacket/pcap"
 	log "github.com/inconshreveable/log15"
 	"github.com/pkg/errors"
-	"net"
-	"time"
 )
 
 // LinkType can be Interface or Mac