We believe that your issue has been closed by the upload of
Version 0.14.9 of grml2usb from Michael Prokop <mika@grml.org>.
The explanation is attached below

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Hash: SHA1

Format: 1.8
Date: Tue, 07 Oct 2014 08:43:38 +0200
Source: grml2usb
Binary: grml2usb
Architecture: source amd64
Version: 0.14.9
Distribution: unstable
Urgency: medium
Maintainer: Grml Team <team@grml.org>
Changed-By: Michael Prokop <mika@grml.org>
Description:
 grml2usb   - install Grml system / ISO to usb device
Closes: 757993
Changes:
 grml2usb (0.14.9) unstable; urgency=medium
 .
   * [2b2c97a] Use pyparted to check for bootflag
     [Closes: issue1248] [Closes: #757993]
     Thanks to Evgeni Golov <evgeni@grml.org> for further
     improving my initial patch.
Checksums-Sha1:
 5ae6ffd1ec31665159d12c2811b8cdb20416fd38 1078 grml2usb_0.14.9.dsc
 c708f2c53fcbd683771060265bd59ad876e1bf9a 384568 grml2usb_0.14.9.tar.xz
 350e27378bb6d23673dc248953b4dbaff08252db 215802 grml2usb_0.14.9_amd64.deb
Checksums-Sha256:
 0b4698ff8aed865dc9e9fabee514ba4efaada8f4668fdf945b9861feb220735e 1078 grml2usb_0.14.9.dsc
 43e27181d46db35b226f51e8c9ec36c412fb14b2c2dc5896285d1775332df8db 384568 grml2usb_0.14.9.tar.xz
 f24a05f56e72e6e69305cf9ef42e17d70e00b9d3c189649ad25afb41952b1411 215802 grml2usb_0.14.9_amd64.deb
Files:
 ecb1a5ba6095ef96afc82809bc68e377 1078 admin optional grml2usb_0.14.9.dsc
 0198e563bdeb62cb2f85c6be846fb64a 384568 admin optional grml2usb_0.14.9.tar.xz
 4ed15fe8edc9674dcd5ae2faf18bf7b4 215802 admin optional grml2usb_0.14.9_amd64.deb

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