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-rw-r--r--apt-pkg/contrib/cdromutl.cc10
1 files changed, 10 insertions, 0 deletions
diff --git a/apt-pkg/contrib/cdromutl.cc b/apt-pkg/contrib/cdromutl.cc
index 6dce82fe1..129e4a9f6 100644
--- a/apt-pkg/contrib/cdromutl.cc
+++ b/apt-pkg/contrib/cdromutl.cc
@@ -157,6 +157,16 @@ bool IdentCdrom(string CD,string &Res,unsigned int Version)
{
MD5Summation Hash;
+ // if we are on a writable medium (like a usb-stick) that is just
+ // used like a cdrom don't use "." as it will constantly change,
+ // use .disk instead
+ if (access(CD.c_str(), W_OK) == 0 && DirectoryExists(CD+string("/.disk"))) {
+ CD = CD+string("/.disk");
+ if (_config->FindB("Debug::aptcdrom",false) == true)
+ std::clog << "Found writable cdrom, using alternative path: "
+ << CD.c_str() << std::endl;
+ }
+
string StartDir = SafeGetCWD();
if (chdir(CD.c_str()) != 0)
return _error->Errno("chdir",_("Unable to change to %s"),CD.c_str());