dpkg-source failed to rename file across filesystems

[ilia]

Binary package hint: dpkg

dpkg-source uses rename() perl function which fails when target is located on another file system. For example, prevu executes it as `dpkg-source -x -sn file.dsc /var/dest/dir`. On my computer /var resides on separated file system which leads to error if file.dsc not under /var:

$ prevu libccrtp_1.7.1-2.dsc
I: Building against currently running distro: intrepid

gpg: Signature made Mon 23 Feb 2009 03:03:18 PM IST using DSA key ID 3D08B612
gpg: Can't check signature: public key not found
dpkg-source: extracting libccrtp in /var/cache/prevu/src/20157/extracted
dpkg-source: info: unpacking libccrtp_1.7.1.orig.tar.gz
dpkg-source: failure: Unable to rename /tmp/test/libccrtp_1.7.1.orig.tar.gz.tmp-extract.AXkZ7/ccrtp-1.7.1 to /var/cache/prevu/src/20157/extracted.orig: Invalid cross-device link

This particular failed rename() is in /usr/share/perl5/Dpkg/Source/Archive.pm file, but you can grep through pm modules to find out more. perlfunc(1) suggests to use File::Copy module or mv utility instead of rename function to handle move across different file systems.

I'm using dpkg 1.14.20ubuntu6 from Intrepid.

[Mark Eichin (eichin-gmail)]

Looks like debian fixed this for lenny in debbugs#507217 (dpkg-dev 1.14.24)