> Is it possible to mount an ext3 filesystem created under RHEL5.2, on > a system running RHEL3.9?
Yes, it should be perfectly fine. Normally the differences I've seen are: rhel3 doesn't support ext_attr, but shouldn't care if it sees it. rhel5 uses use dir_index by default, but rhel3 should support this. > There is an error something like: > "unsupported options on the filesystem, try updating the e2fsck > version". If its throwing that, I think that just running an fsck on the filesystem wouldn't be a bad idea. I just tested mounting a RHEL5 formated ext3 filesystem onto a rhel3 system. It mounted just fine. I did dumpe2fs and noticed that ext_attr wasn't listed as a filesystem option, so I threw it back on RHEL5 and touched a file (if selinux is on it will add ext_attr). I then put it back on RHEL3 and it mounted without an issue. dumpe2fs shows all the rhel5 options. A caveat, I'm using a rhel5 dom0 and a rhel3 domU and the filesystems are image files. > Are the filesystems incompatible? they are not incompatible, verified by one of RedHat's ext engineers (ignore the level 2 and lower tech guys statements otherwise) > Is it possible to modify filesystem options using RHEL5 in > rescue mode, such that RHEL3 is happy? While technically it should be fine, you can remove the ext_attr in this manner: umount /dev/path debugfs -w /dev/path -R "features ^ext_attr" -greg _______________________________________________ rhelv5-list mailing list rhelv5-list@redhat.com https://www.redhat.com/mailman/listinfo/rhelv5-list
