On Wed, May 27, 2020 at 10:54:59PM +0200, Otto Moerbeek wrote: > I got some questions on ffs2 in 6.7. This is to set the record > straight, feel free to share on forums like reddit that I do not read, > let alone post on. > > 1. Using 6.7, the *installer* defaults to ffs2 for new filesystems for > almost all platforms. > > 2. Using 6.7, a newfs "by hand" still gets you ffs1, unless you use the > -O2 flag or the partition > 1TB. > > 3. In -current, newfs defaults to ffs2 for all platforms. > > 4. ffs2 is faster than ffs2 when creating filesystems and almost always when > fscking them.
"ffs2 is faster than ffs1" ... > > 5. ffs2 uses 64-bit timestamps and block numbers. So it handles dates > after 2038 and much larger partitions. This does not mean that super > large partitions are always a good idea, there are still drawbacks: > e.g. they do need lots of memory to fsck, especially when many inodes > are in use. > > 6. I have no plans for writing a conversion tool. You can convert an > ffs1 filesystem to ffs2 using single user mode: umount; dump; newfs > -O2; restore; mount. Or see it as an opportunity to reinstall and > get a nice clean system without cruft collected over the years. > > Hope this help in clearing up some of questions people have, > > -Otto > > >
