partition gone !

Hello, I do not understand what did happen. I have a logical partition whose the hierarchy seems to have disappeared. Here is the result of testdisk: Disk /dev/mapper/VG1-home - 9663 MB / 9216 MiB - CHS 18874368 1 1 The harddisk (9663 MB / 9216 MiB) seems too small! (< 9698 MB / 9249 MiB) Check the harddisk size: HD jumpers settings, BIOS detection... The following partitions can't be recovered: Partition Start End Size in sectors Linux 924 18875291 18874368 Linux 1824 18876191 18874368 Linux 2416 18876783 18874368 Linux 2934 18877301 18874368 Linux 3558 18877925 18874368 Linux 4090 18878457 18874368 Linux 4638 18879005 18874368 Linux 5356 18879723 18874368 Linux 5862 18880229 18874368 Linux 6598 18880965 18874368 When I mount it is just empty. Before I made a restorecon -R -v /home In addition, before the partition was visible from one system (fedora 10) but not from another fedora 10. I also notice that when every thing was OK it was mounted as /dev/dm-6/home and not as it was supposed to be: /dev/VG1/home. I have done something wrong but I cannot understand what ! While the geometry would have change ? I also run a fixfile. The other strange thing is also that only this partition became wrong. while the mounting by using dm-x was for all the partition while it was supposed to be /dev/VG1. I can recover the partition because there is a backup but I would like to understand ! Thank. -- --- ========================================================================== Patrick DUPRÉ | | Department of Chemistry | | Phone: (44)-(0)-1904-434384 The University of York | | Fax: (44)-(0)-1904-432516 Heslington | | York YO10 5DD United Kingdom | | email: patrick.dupre(a)york.ac.uk ==========================================================================