struct disklabel.
Functionality lost:
1. struct disklabel used to be updated to contain bsize, fsize, cpg.
This information was used to locate the alternative superblock in
the filesystem if the primary superblock was corrupted. We need
to find a new place to store this information if we need this
functionality.
2. On vax SMD drives that contained bad sector lists, the newfs program
knew how to get the offset and skip to the correct location in order
to place the label.
kernels) so that newfs works on vinum (and similar).
Kill the -V hack for vinum.
Don't bother faking up a label for -F and mfs, nothing is needed from it.
Ignore label if special doesn't match DISKPART(sb.st_rdev);
Simplifly logic for default block/frag sizes.
Update man page to match.
WARNS=3.
This is the bulk of PR #17345
The general approach is to use a run time deteriminable value
for DIRBLKSIZ. Additional allowances are included for using
MAXSYMLINKLEN with FS_42INODEFMT and a shift in the cylinder group
cluster summary count array. Support is added for managing
the Apple UFS volume label.