Created attachment 966568 [details] Latest grub.cfg generated by os-prober Description of problem: When I run grub2-mkconfig, os-prober misidentifies my Windows partition as Windows Vista. It actually is Windows 7. Until recently, it always identified it as Windows 7 Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1.run 'grub2-mkconfig -o /boot/grub2/grub.cfg' on my machine 2. 3. Actual results: Windows is identified as Vista not 7 Expected results: Proper identification Additional info:
Please include output from $ sudo os-prober
[frankzen@localhost rox]$ sudo os-prober /dev/sda1:Windows Vista (loader):Windows:chain /dev/sda4:Debian GNU/Linux (8.0):Debian:linux [frankzen@localhost rox]$
I'm not finding debug options for os-prober, but try this, it might give some hint why it thinks it's Vista: $ sudo bash -x os-prober
[frankzen@localhost rox]$ sudo bash -x os-prober + set -e + export fd_result=3 + fd_result=3 + export fd_logger=9 + fd_logger=9 + . /usr/share/os-prober/common.sh ++ cleanup_tmpdir=false ++ cleanup_ro_partitions= ++ progname= ++ eval ' log() { cache_progname echo "$progname: $@" 1>&9 } ' ++ export fd_logger ++ eval ' result() { log "result:" "$@" echo "$@" 1>&3 } ' ++ export fd_result ++ type mapdevfs +++ which umount ++ umount_exec=/bin/umount + newns + '[' '' ']' + exec /usr/libexec/newns os-prober /dev/sda1:Windows Vista (loader):Windows:chain /dev/sda4:Debian GNU/Linux (8.0):Debian:linux [frankzen@localhost rox]$ I dunno, hope this makes sense to someone :)
I'm investigating the issue, it's related to grep! not os-prober. grep's behavior in searching binary files is changed in Fedora 21. I'm trying to find out if it is a bug, or an intended change!
Seems to be a bug. I've filled bug #1172804 against grep.
Thanks Hedayat. Common Bugs proposed text: After installing Fedora along side Windows, the (GRUB) boot menu entry for Windows might be mislabeled with the wrong version of Windows. This is a cosmetic bug, the entry should still successfully boot Windows. A future update is anticipated that will fix the underlying cause, but following that update it will be necessary to manually run 'grub2-mkconfig -o /boot/grub2/grub.cfg' for the change to take effect.
I haven't tried yet to boot Windows from the mis-labeled prompt. If it works you'll hear nothing from me.
This is due to a bug in os-prober; it's making an unportable assumption about 'grep'. I have filed a bug report with a proposed (but untested) patch at: http://bugs.debian.org/772901
*** Bug 1176133 has been marked as a duplicate of this bug. ***
os-prober-1.65-2.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/os-prober-1.65-2.fc21
Package os-prober-1.65-2.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing os-prober-1.65-2.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-17566/os-prober-1.65-2.fc21 then log in and leave karma (feedback).
os-prober-1.65-2.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.