2010/10/2 Dennis Cao <[email protected]>: > Yesterday, I used this command to correct my MBR on my working computer, > $ dd if=/somefile of=/dev/sda bs=512 count=1 > But very unfortunately, I used a wrong file. Now when I boot my > working computer, it says: > Non-system disk or disk error > replace and strike any key when ready > > I think the partition table is destroyed. How can I restore my disk? > > --------------------------------- > 曹贵林 ( Dennis Cao ) > > _______________________________________________ > Help-grub mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/help-grub >
The partition table can likely be recovered using this guide: http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step (you can ignore the "rewriting the corrupted NTFS boot sector" parts ). Then you can re-install grub2 following this guide: http://grub.enbug.org/Grub2LiveCdInstallGuide . -- Jordan Uggla (Jordan_U on irc.freenode.net) _______________________________________________ Help-grub mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-grub
