Date: Sat, 10 Nov 2007 10:31:32 -0700 From: Edward Sutton <mirror176@hotmail.com> To: <freebsd-geom@freebsd.org> Subject: gvinum raid5 cannot find file system superblock after removing a disk Message-ID: <BAY110-W41B96F9B17F8E787B23965E6850@phx.gbl>
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I had a disk that had been in a down state in the past, marking its raid5 p= lexes as stale. After determining which disk was the one connected to the s= tale data (ad8), I rebooted to a freebsd on a nonraided freebsd drive that = did not have geom_gvinum loaded. I made a dd of the first 64mb on ad8 and u= sed sysinstall to repartition the drive. The main system has failed to moun= t or fsck all raid5 partitions since. gvinum still says the untouched piece= s are in the 'up' state and restoring my ad8 dd made that disk listed again= but still cannot boot. I have not yet tried to rebuild the disk from the o= ther 2 since it is unable to boot from them. Is there a chance that the day= a is no longer being called with the=20 correct offset or from the correct disk? is there a way i can experiment wi= th the data from each disk to rebuild it using different orders and offsets= to create another disk containing nonstriped data to try to find the files= ystems? I am running a stable6 system updated about 3 days ago and haven't found an= y postings indicating trouble from there. Any information as to what went w= rong and suggested steps from here to bring this data back online would be = greatly appreciated. I will try to provide any requested information, but a= t present wukk be manually copying it fro one computer to the next in most = cases. Thanks again for any information, Ed Sutton _________________________________________________________________ Help yourself to FREE treats served up daily at the Messenger Caf=E9. Stop = by today. http://www.cafemessenger.com/info/info_sweetstuff2.html?ocid=3DTXT_TAGLM_Oc= tWLtagline=
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