diff --git a/block/src/lib.rs b/block/src/lib.rs
index e831502be..82142724a 100644
--- a/block/src/lib.rs
+++ b/block/src/lib.rs
@@ -68,9 +68,9 @@ pub const SECTOR_SIZE: u64 = 0x01 << SECTOR_SHIFT;
 #[derive(Error, Debug)]
 pub enum Error {
     #[error("Guest gave us bad memory addresses")]
-    GuestMemory(GuestMemoryError),
+    GuestMemory(#[source] GuestMemoryError),
     #[error("Guest gave us offsets that would have overflowed a usize")]
-    CheckedOffset(GuestAddress, usize),
+    CheckedOffset(GuestAddress, usize /* sector offset */),
     #[error("Guest gave us a write only descriptor that protocol says to read from")]
     UnexpectedWriteOnlyDescriptor,
     #[error("Guest gave us a read only descriptor that protocol says to write to")]
@@ -80,21 +80,21 @@ pub enum Error {
     #[error("Guest gave us a descriptor that was too short to use")]
     DescriptorLengthTooSmall,
     #[error("Failed to detect image type: {0}")]
-    DetectImageType(std::io::Error),
+    DetectImageType(#[source] std::io::Error),
     #[error("Failure in fixed vhd: {0}")]
-    FixedVhdError(std::io::Error),
+    FixedVhdError(#[source] std::io::Error),
     #[error("Getting a block's metadata fails for any reason")]
     GetFileMetadata,
     #[error("The requested operation would cause a seek beyond disk end")]
     InvalidOffset,
     #[error("Failure in qcow: {0}")]
-    QcowError(qcow::Error),
+    QcowError(#[source] qcow::Error),
     #[error("Failure in raw file: {0}")]
-    RawFileError(std::io::Error),
+    RawFileError(#[source] std::io::Error),
     #[error("The requested operation does not support multiple descriptors")]
     TooManyDescriptors,
     #[error("Failure in vhdx: {0}")]
-    VhdxError(VhdxError),
+    VhdxError(#[source] VhdxError),
 }
 
 fn build_device_id(disk_path: &Path) -> result::Result<String, Error> {
@@ -132,33 +132,33 @@ pub fn build_serial(disk_path: &Path) -> Vec<u8> {
 #[derive(Error, Debug)]
 pub enum ExecuteError {
     #[error("Bad request: {0}")]
-    BadRequest(Error),
+    BadRequest(#[source] Error),
     #[error("Failed to flush: {0}")]
-    Flush(io::Error),
+    Flush(#[source] io::Error),
     #[error("Failed to read: {0}")]
-    Read(GuestMemoryError),
+    Read(#[source] GuestMemoryError),
     #[error("Failed to read_exact: {0}")]
-    ReadExact(io::Error),
+    ReadExact(#[source] io::Error),
     #[error("Failed to seek: {0}")]
-    Seek(io::Error),
+    Seek(#[source] io::Error),
     #[error("Failed to write: {0}")]
-    Write(GuestMemoryError),
+    Write(#[source] GuestMemoryError),
     #[error("Failed to write_all: {0}")]
-    WriteAll(io::Error),
+    WriteAll(#[source] io::Error),
     #[error("Unsupported request: {0}")]
     Unsupported(u32),
     #[error("Failed to submit io uring: {0}")]
-    SubmitIoUring(io::Error),
+    SubmitIoUring(#[source] io::Error),
     #[error("Failed to get guest address: {0}")]
-    GetHostAddress(GuestMemoryError),
+    GetHostAddress(#[source] GuestMemoryError),
     #[error("Failed to async read: {0}")]
-    AsyncRead(AsyncIoError),
+    AsyncRead(#[source] AsyncIoError),
     #[error("Failed to async write: {0}")]
-    AsyncWrite(AsyncIoError),
+    AsyncWrite(#[source] AsyncIoError),
     #[error("failed to async flush: {0}")]
-    AsyncFlush(AsyncIoError),
+    AsyncFlush(#[source] AsyncIoError),
     #[error("Failed allocating a temporary buffer: {0}")]
-    TemporaryBufferAllocation(io::Error),
+    TemporaryBufferAllocation(#[source] io::Error),
 }
 
 impl ExecuteError {
diff --git a/block/src/qcow/mod.rs b/block/src/qcow/mod.rs
index a62729380..1efa59883 100644
--- a/block/src/qcow/mod.rs
+++ b/block/src/qcow/mod.rs
@@ -37,23 +37,23 @@ const MAX_NESTING_DEPTH: u32 = 10;
 #[derive(Debug, Error)]
 pub enum Error {
     #[error("Backing file io error: {0}")]
-    BackingFileIo(io::Error),
+    BackingFileIo(#[source] io::Error),
     #[error("Backing file open error: {0}")]
-    BackingFileOpen(Box<Error>),
+    BackingFileOpen(#[source] Box<Error>),
     #[error("Backing file name is too long: {0} bytes over")]
     BackingFileTooLong(usize),
     #[error("Compressed blocks not supported")]
     CompressedBlocksNotSupported,
     #[error("Failed to evict cache: {0}")]
-    EvictingCache(io::Error),
+    EvictingCache(#[source] io::Error),
     #[error("File larger than max of {MAX_QCOW_FILE_SIZE}: {0}")]
     FileTooBig(u64),
     #[error("Failed to get file size: {0}")]
-    GettingFileSize(io::Error),
+    GettingFileSize(#[source] io::Error),
     #[error("Failed to get refcount: {0}")]
-    GettingRefcount(refcount::Error),
+    GettingRefcount(#[source] refcount::Error),
     #[error("Failed to parse filename: {0}")]
-    InvalidBackingFileName(str::Utf8Error),
+    InvalidBackingFileName(#[source] str::Utf8Error),
     #[error("Invalid cluster index")]
     InvalidClusterIndex,
     #[error("Invalid cluster size")]
@@ -81,29 +81,29 @@ pub enum Error {
     #[error("Not enough space for refcounts")]
     NotEnoughSpaceForRefcounts,
     #[error("Failed to open file {0}")]
-    OpeningFile(io::Error),
+    OpeningFile(#[source] io::Error),
     #[error("Failed to read data: {0}")]
-    ReadingData(io::Error),
+    ReadingData(#[source] io::Error),
     #[error("Failed to read header: {0}")]
-    ReadingHeader(io::Error),
+    ReadingHeader(#[source] io::Error),
     #[error("Failed to read pointers: {0}")]
-    ReadingPointers(io::Error),
+    ReadingPointers(#[source] io::Error),
     #[error("Failed to read ref count block: {0}")]
-    ReadingRefCountBlock(refcount::Error),
+    ReadingRefCountBlock(#[source] refcount::Error),
     #[error("Failed to read ref counts: {0}")]
-    ReadingRefCounts(io::Error),
+    ReadingRefCounts(#[source] io::Error),
     #[error("Failed to rebuild ref counts: {0}")]
-    RebuildingRefCounts(io::Error),
+    RebuildingRefCounts(#[source] io::Error),
     #[error("Refcount table offset past file end")]
     RefcountTableOffEnd,
     #[error("Too many clusters specified for refcount")]
     RefcountTableTooLarge,
     #[error("Failed to seek file: {0}")]
-    SeekingFile(io::Error),
+    SeekingFile(#[source] io::Error),
     #[error("Failed to set file size: {0}")]
-    SettingFileSize(io::Error),
+    SettingFileSize(#[source] io::Error),
     #[error("Failed to set refcount refcount: {0}")]
-    SettingRefcountRefcount(io::Error),
+    SettingRefcountRefcount(#[source] io::Error),
     #[error("Size too small for number of clusters")]
     SizeTooSmallForNumberOfClusters,
     #[error("L1 entry table too large: {0}")]
@@ -115,9 +115,9 @@ pub enum Error {
     #[error("Unsupported version: {0}")]
     UnsupportedVersion(u32),
     #[error("Failed to write data: {0}")]
-    WritingData(io::Error),
+    WritingData(#[source] io::Error),
     #[error("Failed to write header: {0}")]
-    WritingHeader(io::Error),
+    WritingHeader(#[source] io::Error),
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
diff --git a/block/src/qcow/refcount.rs b/block/src/qcow/refcount.rs
index 33bf5c045..deeccf161 100644
--- a/block/src/qcow/refcount.rs
+++ b/block/src/qcow/refcount.rs
@@ -16,7 +16,7 @@ use crate::qcow::vec_cache::{CacheMap, Cacheable, VecCache};
 pub enum Error {
     /// `EvictingCache` - Error writing a refblock from the cache to disk.
     #[error("Failed to write a refblock from the cache to disk: {0}")]
-    EvictingRefCounts(io::Error),
+    EvictingRefCounts(#[source] io::Error),
     /// `InvalidIndex` - Address requested isn't within the range of the disk.
     #[error("Address requested is not within the range of the disk")]
     InvalidIndex,
@@ -28,7 +28,7 @@ pub enum Error {
     NeedNewCluster,
     /// `ReadingRefCounts` - Error reading the file into the refcount cache.
     #[error("Failed to read the file into the refcount cache: {0}")]
-    ReadingRefCounts(io::Error),
+    ReadingRefCounts(#[source] io::Error),
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
diff --git a/block/src/vhdx/mod.rs b/block/src/vhdx/mod.rs
index 2ec266c62..03a312ea7 100644
--- a/block/src/vhdx/mod.rs
+++ b/block/src/vhdx/mod.rs
@@ -26,19 +26,19 @@ mod vhdx_metadata;
 #[sorted]
 #[derive(Error, Debug)]
 pub enum VhdxError {
-    #[error("Not a VHDx file {0}")]
+    #[error("Not a VHDx file: {0}")]
     NotVhdx(#[source] VhdxHeaderError),
-    #[error("Failed to parse VHDx header {0}")]
+    #[error("Failed to parse VHDx header: {0}")]
     ParseVhdxHeader(#[source] VhdxHeaderError),
-    #[error("Failed to parse VHDx metadata {0}")]
+    #[error("Failed to parse VHDx metadata: {0}")]
     ParseVhdxMetadata(#[source] VhdxMetadataError),
-    #[error("Failed to parse VHDx region entries {0}")]
+    #[error("Failed to parse VHDx region entries: {0}")]
     ParseVhdxRegionEntry(#[source] VhdxHeaderError),
-    #[error("Failed reading metadata {0}")]
+    #[error("Failed reading metadata: {0}")]
     ReadBatEntry(#[source] VhdxBatError),
-    #[error("Failed reading sector from disk {0}")]
+    #[error("Failed reading sector from disk: {0}")]
     ReadFailed(#[source] VhdxIoError),
-    #[error("Failed writing to sector on disk {0}")]
+    #[error("Failed writing to sector on disk: {0}")]
     WriteFailed(#[source] VhdxIoError),
 }
 
diff --git a/block/src/vhdx/vhdx_bat.rs b/block/src/vhdx/vhdx_bat.rs
index 01d86425e..a12ec23ec 100644
--- a/block/src/vhdx/vhdx_bat.rs
+++ b/block/src/vhdx/vhdx_bat.rs
@@ -33,9 +33,9 @@ pub enum VhdxBatError {
     InvalidBatEntry,
     #[error("Invalid BAT entry count")]
     InvalidEntryCount,
-    #[error("Failed to read BAT entry {0}")]
+    #[error("Failed to read BAT entry: {0}")]
     ReadBat(#[source] io::Error),
-    #[error("Failed to write BAT entry {0}")]
+    #[error("Failed to write BAT entry: {0}")]
     WriteBat(#[source] io::Error),
 }