diff --git a/s3/public.go b/s3/public.go
index 4d567209..f4577982 100644
--- a/s3/public.go
+++ b/s3/public.go
@@ -304,6 +304,8 @@ func (storage *PublishedStorage) LinkFromPool(publishedDirectory string, sourceP
 	err = storage.putFile(relPath, source)
 	if err == nil {
 		storage.pathCache[relPath] = sourceMD5
+	} else {
+		err = errors.Wrap(err, fmt.Sprintf("error uploading %s to %s: %s", sourcePath, storage, poolPath))
 	}
 
 	return err
diff --git a/swift/public.go b/swift/public.go
index c17f0f26..d8236c03 100644
--- a/swift/public.go
+++ b/swift/public.go
@@ -3,14 +3,15 @@ package swift
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 	"os"
 	"path/filepath"
 	"time"
 
 	"github.com/ncw/swift"
+	"github.com/pkg/errors"
 	"github.com/smira/aptly/aptly"
-	"github.com/smira/aptly/files"
 	"github.com/smira/aptly/utils"
 )
 
@@ -129,12 +130,18 @@ func (storage *PublishedStorage) PutFile(path string, sourceFilename string) err
 	}
 	defer source.Close()
 
-	_, err = storage.conn.ObjectPut(storage.container, filepath.Join(storage.prefix, path), source, false, "", "", nil)
-
+	err = storage.putFile(path, source)
 	if err != nil {
-		return fmt.Errorf("error uploading %s to %s: %s", sourceFilename, storage, err)
+		err = errors.Wrap(err, fmt.Sprintf("error uploading %s to %s", sourceFilename, storage))
 	}
-	return nil
+
+	return err
+}
+
+func (storage *PublishedStorage) putFile(path string, source io.Reader) error {
+	_, err := storage.conn.ObjectPut(storage.container, filepath.Join(storage.prefix, path), source, false, "", "", nil)
+
+	return err
 }
 
 // Remove removes single file under public path
@@ -188,8 +195,6 @@ func (storage *PublishedStorage) RemoveDirs(path string, progress aptly.Progress
 // LinkFromPool returns relative path for the published file to be included in package index
 func (storage *PublishedStorage) LinkFromPool(publishedDirectory string, sourcePool aptly.PackagePool,
 	sourcePath string, sourceChecksums utils.ChecksumInfo, force bool) error {
-	// verify that package pool is local pool in filesystem
-	_ = sourcePool.(*files.PackagePool)
 
 	baseName := filepath.Base(sourcePath)
 	relPath := filepath.Join(publishedDirectory, baseName)
@@ -216,7 +221,18 @@ func (storage *PublishedStorage) LinkFromPool(publishedDirectory string, sourceP
 		}
 	}
 
-	return storage.PutFile(relPath, sourcePath)
+	source, err := sourcePool.Open(sourcePath)
+	if err != nil {
+		return err
+	}
+	defer source.Close()
+
+	err = storage.putFile(relPath, source)
+	if err != nil {
+		err = errors.Wrap(err, fmt.Sprintf("error uploading %s to %s: %s", sourcePath, storage, poolPath))
+	}
+
+	return err
 }
 
 // Filelist returns list of files under prefix
diff --git a/swift/public_test.go b/swift/public_test.go
index 45a7bb09..5ebf78c4 100644
--- a/swift/public_test.go
+++ b/swift/public_test.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"io/ioutil"
 	"math/rand"
-	"os"
 	"path/filepath"
 	"time"
 
@@ -147,22 +146,23 @@ func (s *PublishedStorageSuite) TestLinkFromPool(c *C) {
 	root := c.MkDir()
 	pool := files.NewPackagePool(root)
 
-	sourcePath := filepath.Join(root, "pool/c1/df/mars-invaders_1.03.deb")
-	err := os.MkdirAll(filepath.Dir(sourcePath), 0755)
+	tmpFile1 := filepath.Join(c.MkDir(), "mars-invaders_1.03.deb")
+	err := ioutil.WriteFile(tmpFile1, []byte("Contents"), 0644)
 	c.Assert(err, IsNil)
+	cksum1 := utils.ChecksumInfo{MD5: "c1df1da7a1ce305a3b60af9d5733ac1d"}
 
-	err = ioutil.WriteFile(sourcePath, []byte("Contents"), 0644)
+	tmpFile2 := filepath.Join(c.MkDir(), "mars-invaders_1.03.deb")
+	err = ioutil.WriteFile(tmpFile2, []byte("Spam"), 0644)
 	c.Assert(err, IsNil)
+	cksum2 := utils.ChecksumInfo{MD5: "e9dfd31cc505d51fc26975250750deab"}
 
-	sourcePath2 := filepath.Join(root, "pool/e9/df/mars-invaders_1.03.deb")
-	err = os.MkdirAll(filepath.Dir(sourcePath2), 0755)
+	src1, err := pool.Import(tmpFile1, "mars-invaders_1.03.deb", &cksum1, true)
 	c.Assert(err, IsNil)
-
-	err = ioutil.WriteFile(sourcePath2, []byte("Spam"), 0644)
+	src2, err := pool.Import(tmpFile2, "mars-invaders_1.03.deb", &cksum2, true)
 	c.Assert(err, IsNil)
 
 	// first link from pool
-	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, sourcePath, utils.ChecksumInfo{MD5: "c1df1da7a1ce305a3b60af9d5733ac1d"}, false)
+	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, src1, cksum1, false)
 	c.Check(err, IsNil)
 
 	data, err := s.storage.conn.ObjectGetBytes("test", "pool/main/m/mars-invaders/mars-invaders_1.03.deb")
@@ -170,7 +170,7 @@ func (s *PublishedStorageSuite) TestLinkFromPool(c *C) {
 	c.Check(data, DeepEquals, []byte("Contents"))
 
 	// duplicate link from pool
-	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, sourcePath, utils.ChecksumInfo{MD5: "c1df1da7a1ce305a3b60af9d5733ac1d"}, false)
+	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, src1, cksum1, false)
 	c.Check(err, IsNil)
 
 	data, err = s.storage.conn.ObjectGetBytes("test", "pool/main/m/mars-invaders/mars-invaders_1.03.deb")
@@ -178,7 +178,7 @@ func (s *PublishedStorageSuite) TestLinkFromPool(c *C) {
 	c.Check(data, DeepEquals, []byte("Contents"))
 
 	// link from pool with conflict
-	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, sourcePath2, utils.ChecksumInfo{MD5: "e9dfd31cc505d51fc26975250750deab"}, false)
+	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, src2, cksum2, false)
 	c.Check(err, ErrorMatches, ".*file already exists and is different.*")
 
 	data, err = s.storage.conn.ObjectGetBytes("test", "pool/main/m/mars-invaders/mars-invaders_1.03.deb")
@@ -186,7 +186,7 @@ func (s *PublishedStorageSuite) TestLinkFromPool(c *C) {
 	c.Check(data, DeepEquals, []byte("Contents"))
 
 	// link from pool with conflict and force
-	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, sourcePath2, utils.ChecksumInfo{MD5: "e9dfd31cc505d51fc26975250750deab"}, true)
+	err = s.storage.LinkFromPool(filepath.Join("", "pool", "main", "m/mars-invaders"), pool, src2, cksum2, true)
 	c.Check(err, IsNil)
 
 	data, err = s.storage.conn.ObjectGetBytes("test", "pool/main/m/mars-invaders/mars-invaders_1.03.deb")