void *mem_prepopulate_pats;
bool wof_running;
bool tried_to_load_prepopulate_list;
+
+ bool have_wrong_version_wims;
+ bool have_uncompressed_wims;
+ bool have_unsupported_compressed_resources;
+ bool have_huge_resources;
} wimboot;
/* Open handle to the target directory */
{
const wchar_t *path = L"\\Windows\\System32\\WimBootCompress.ini";
struct wim_dentry *dentry;
- struct blob_descriptor *blob;
+ const struct blob_descriptor *blob;
int ret;
void *buf;
struct string_set *s;
!(blob = inode_get_blob_for_unnamed_data_stream(dentry->d_inode,
ctx->common.wim->blob_table)))
{
- WARNING("%ls does not exist in WIM image!", path);
+ WARNING("%ls does not exist in the WIM image.\n"
+ " The default configuration will be used instead; it assumes that all\n"
+ " files are valid for external backing regardless of path, equivalent\n"
+ " to an empty [PrepopulateList] section.", path);
return WIMLIB_ERR_PATH_DOES_NOT_EXIST;
}
- ret = read_full_blob_into_alloc_buf(blob, &buf);
+ ret = read_blob_into_alloc_buf(blob, &buf);
if (ret)
return ret;
}
static bool
-is_resource_valid_for_external_backing(const struct wim_resource_descriptor *rdesc)
+is_resource_valid_for_external_backing(const struct wim_resource_descriptor *rdesc,
+ struct win32_apply_ctx *ctx)
{
/* Must be the original WIM file format. This check excludes pipable
* resources and solid resources. It also excludes other resources
*/
if (rdesc->wim->hdr.magic != WIM_MAGIC ||
rdesc->wim->hdr.wim_version != WIM_VERSION_DEFAULT)
+ {
+ ctx->wimboot.have_wrong_version_wims = true;
return false;
+ }
/*
* Whitelist of compression types and chunk sizes supported by
*/
switch (rdesc->compression_type) {
case WIMLIB_COMPRESSION_TYPE_NONE:
- if (rdesc->wim->compression_type == WIMLIB_COMPRESSION_TYPE_NONE)
+ if (rdesc->wim->compression_type == WIMLIB_COMPRESSION_TYPE_NONE) {
+ ctx->wimboot.have_uncompressed_wims = true;
return false;
+ }
break;
case WIMLIB_COMPRESSION_TYPE_XPRESS:
switch (rdesc->chunk_size) {
case 32768:
break;
default:
+ ctx->wimboot.have_unsupported_compressed_resources = true;
return false;
}
break;
case 32768:
break;
default:
+ ctx->wimboot.have_unsupported_compressed_resources = true;
return false;
}
break;
default:
+ ctx->wimboot.have_unsupported_compressed_resources = true;
return false;
}
/* Microsoft's WoF driver errors out if it tries to satisfy a read with
* ending offset >= 4 GiB from an externally backed file. */
- if (rdesc->uncompressed_size > 4200000000)
+ if (rdesc->uncompressed_size > 4200000000) {
+ ctx->wimboot.have_huge_resources = true;
return false;
+ }
return true;
}
if (!wim_info_get_wimboot(ctx->common.wim->wim_info,
ctx->common.wim->current_image))
- WARNING("Image is not marked as WIMBoot compatible!");
+ WARNING("The WIM image is not marked as WIMBoot compatible. This usually\n"
+ " means it is not intended to be used to back a Windows operating\n"
+ " system. Proceeding anyway.");
list_for_each_entry(dentry, dentry_list, d_extraction_list_node) {
struct blob_descriptor *blob;
return ret;
}
+ if (ctx->wimboot.have_wrong_version_wims) {
+ WARNING("At least one of the source WIM files uses a version of the WIM\n"
+" file format that not supported by Microsoft's wof.sys driver.\n"
+" Files whose data is contained in one of these WIM files will be\n"
+" extracted as full files rather than externally backed.");
+ }
+
+ if (ctx->wimboot.have_uncompressed_wims) {
+ WARNING("At least one of the source WIM files is uncompressed. Files whose\n"
+" data is contained in an uncompressed WIM file will be extracted as\n"
+" full files rather than externally backed, since uncompressed WIM\n"
+" files are not supported by Microsoft's wof.sys driver.");
+ }
+
+ if (ctx->wimboot.have_unsupported_compressed_resources) {
+ WARNING("At least one of the source WIM files uses a compression format that\n"
+" is not supported by Microsoft's wof.sys driver. Files whose data is\n"
+" contained in a compressed resource in one of these WIM files will be\n"
+" extracted as full files rather than externally backed. (The\n"
+" compression formats supported by wof.sys are: XPRESS 4K, XPRESS 8K,\n"
+" XPRESS 16K, XPRESS 32K, and LZX 32K.)");
+ }
+
+ if (ctx->wimboot.have_huge_resources) {
+ WARNING("Some files exceeded 4.2 GB in size. Such files will be extracted\n"
+" as full files rather than externally backed, since very large files\n"
+" are not supported by Microsoft's wof.sys driver.");
+ }
+
return 0;
}
if (ret)
goto out;
- struct read_blob_list_callbacks cbs = {
- .begin_blob = begin_extract_blob,
- .begin_blob_ctx = ctx,
- .consume_chunk = extract_chunk,
- .consume_chunk_ctx = ctx,
- .end_blob = end_extract_blob,
- .end_blob_ctx = ctx,
+ struct read_blob_callbacks cbs = {
+ .begin_blob = begin_extract_blob,
+ .consume_chunk = extract_chunk,
+ .end_blob = end_extract_blob,
+ .ctx = ctx,
};
ret = extract_blob_list(&ctx->common, &cbs);
if (ret)
git://wimlib.net / wimlib / blobdiff