On Fri, Sep 24, 2010 at 12:21, Leif Walsh <leif.wa...@gmail.com> wrote: > On Fri, Sep 24, 2010 at 2:04 PM, krad <kra...@gmail.com> wrote: >> Im not 100% sure (probably about 60% actually) but cant you mount ext4 as >> ext2? From what i vaguly remember there will be some limitations but its >> worth having a look > > # mount -t ext2fs /dev/ad4p1 /mnt > mount: /dev/ad4p1 : Invalid argument > > Unless there's something I'm missing, nope. ext3 works because the > only difference between it and ext2 is the journal, I believe the > on-disk format of ext4 is different (though maybe I'm wrong and the > bsd drivers for ext2 just are too conservative?). > > -- > Cheers, > Leif > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org" >
Doesn't look like you can mount an ext4 as ext2/3 if you have extents enabled, which is probably enabled by default if you create a new filesystem. >From >https://ext4.wiki.kernel.org/index.php/Frequently_Asked_Questions#Can_I_mount_existing_Ext3_as_Ext4.3F_And_vice_versa.3F_Similarly_from_Ext2_to_Ext4_and_its_reverse.3F "Once you have enabled extents or created a journal on a former ext2 filesystem, it is an ext4 filesystem and cannot be reverted to ext2." >From http://en.wikipedia.org/wiki/Ext4#Features Under "Backward compatibility" header "However, if the ext4 partition uses extents (a major new feature of ext4), then the ability to mount the file system as ext3 is lost. --Aaron _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
