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Created attachment 1196274 [details] anaconda.log Description of problem: "FSError: umount failed" when installation manually with GUI Version-Release number of selected component (if applicable): os tree:RHEL-7.3-20160825.1 How reproducible: 100% Steps to Reproduce: 1.Download vmlinuz and initrd.img files from tree and put them in /boot 2.Edit /etc/grub.d/40_custom 3.Run #grub2-mkconfig -o /boot/grub2/grub.cfg 4. Reboot the machine and choose the new boot option to install the system Actual results: When the GUI sreen shows, a window pops up prompting error:"This program has encountered an unknown error..." Clicked "More info", it shows "FSError: umount failed". Pls refer to attachment: anaconda.log. Expected results: This error should not occur, users should be able to proceed the language selecting and other operations Additional info:
Created attachment 1196275 [details] anaconda-tb-Kn5G7L
Created attachment 1196277 [details] anaconda-yum.conf
Sorry, I find an another important condition to reproduce this issue in test steps, there is a installation cd in the cdrom.
This looks like bug 1322439, so I'm going to close it as a duplicate. Feel free to reopen if you think this is a different issue. *** This bug has been marked as a duplicate of bug 1322439 ***