Bob and Wendy, Thank you for your input on this. What I am trying to do is upgrade a GFS 6.0 filesystems which are attached to various RHEL3/CentOS3 systems. After performing the steps which outline the process of going from 3 to 4, but on a CentOS 5 system, I get the problems mentioned in my message yesterday Re: /sbin/mount.gfs thinks fs is gfs2? Everyt time I reinstalled a system with CentOS 5 and tried to get gfs running again I got the same error. Since I know that this is an unsupported operation, I haven't sought support for this. However, I noticed that my upgraded filesystem had sb_fs_format = 1308. The mount code checks for sb_fs_format == GFS_FORMAT_FS for gfs 6.1 and GFS2_FORMAT_FS for gfs2. Since it was neither of these, it kept dying saying that it was a gfs2 fs when mounting it as gfs, and vice versa. Manually modifying sb_fs_format allowed it to mount immediately afterward. A subsequent gfs_fsck completes all passes successfully. Is that sufficient for upgrading the filesystem if the other steps are performed? All fs operations appear to be successful at this point. thanks, -chris -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
