Hide Forgot
Created attachment 1507698 [details] Exception report Description of problem: I used mdadm to create a raid1 with two disks and partion it,then i removed one disk from the raid.After this, i try to install system but it will report exception.It is interesting that if i remove another one disk and remain the oringinal one,then system installation will success. Information detail: anaconda 21.48.22.134-1 exception report Traceback (most recent call first): File "/usr/lib/python2.7/site-packages/blivet/devicelibs/mdraid.py", line 378, in name_from_md_node raise MDRaidError("name_from_md_node(%s) failed" % node) File "/usr/lib/python2.7/site-packages/blivet/devicetree.py", line 926, in addUdevPartitionDevice name = mdraid.name_from_md_node(name) File "/usr/lib/python2.7/site-packages/blivet/devicetree.py", line 1240, in addUdevDevice device = self.addUdevPartitionDevice(info) File "/usr/lib/python2.7/site-packages/blivet/devicetree.py", line 2306, in _populate self.addUdevDevice(dev) File "/usr/lib/python2.7/site-packages/blivet/devicetree.py", line 2239, in populate self._populate() File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 495, in reset self.devicetree.populate(cleanupOnly=cleanupOnly) File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 190, in storageInitialize storage.reset() File "/usr/lib64/python2.7/threading.py", line 765, in run self.__target(*self.__args, **self.__kwargs) File "/usr/lib64/python2.7/site-packages/pyanaconda/threads.py", line 227, in run threading.Thread.run(self, *args, **kwargs) MDRaidError: name_from_md_node(md127p1) failed Local variables in innermost frame: node: md127p1 name: None md_dir: /dev/md Version-Release number of selected component (if applicable): python-blivet-0.61.15.69-1.el7.noarch.rpm How reproducible: Steps to Reproduce: 1.A normal system with two vacant disks like sdb,sdc. 2.mdadm -C /dev/md0 -l 1 -n 2 /dev/sdb /dev/sdc 3.Excute "fdisk /dev/md0" to create a partion on /dev/md0. 4.mdadm -f /dev/md0 /dev/sdc;mdadm -r /dev/md0 /dev/sdc 5.Shutdown and install system. Actual results: It will report exception. Expected results: Installation success. Additional info: If remove sdc won't reproduce the problem,then try to redo the"Steps to Reproduce" but remove sdb instead of sdc. I also tried to install Fedora28 aside from rehat7.5.There was no problem with Fedora28. During the installation of Fedora28 I switched to commanline and found a mdadm configure file--mdadm.conf under directory /etc/,but I didn't find it in redhat7.5. So I added the the same mdadm.conf to squashfs.img of redhat7.5 and recreate iso.The was not exception report any more when I installed system with new iso.