can't fsck_ext2fs on a non sliced disk on 5.1

I got this message : # fsck_ext2fs -d /dev/ad3 ** /dev/ad3 BAD SUPER BLOCK: MAGIC NUMBER WRONG ioctl (GCINFO): Inappropriate ioctl for device /dev/ad3: can't read disk label is this due to geom or to FreeBSD 5.1? It worked on a 4.6.2. Though /dev/ad3 could be mounted when it was clean. ___

mount_ext2fs : device not found

I've a IDE hard drive sliced in 4 part ad0s1 : NTFS ad0s2 : linux swap ad0s3 : linux ext2fs ad0s4[a-f] : ffs (FreeBSD 5.1) mount_ntfs /dev/ad0s1 /mnt/XP : It works. mount_ext2fs /dev/ad0s3 /mnt/linux : /dev/ad0s3 not found (not the exact message) Does someone have this bug with devfs and mou

networked block device

I'm writing a remote block device on FreeBSD 4.6.2 As far as the network part is rather difficult, I don't want to include it in the kernel module. So I started coding my module with this overall structure in mind : - a program reads the block device. - the module receives read and write uio re