PC98 boot blocks don't support UFS2. We keep newfs(8) defaulting to
UFS2.
Warn users that FreeBSD can only boot from a root file system smaller
than 1.5TB; hopefully this will get fixed by the patches currently
floating around on -CURRENT.
Reviewed by: nyan
FreeBSD 5.1-RELEASE and later:
- newfs(8) will now create UFS2 file systems unless UFS1 is specifically
requested (-O1). To do this, I just twiddled the Oflag default.
- sysinstall(8) will now select UFS2 as the default layout for new
file systems unless specifically requested (use '1' and '2' to change
the file system layout in the disk labeler). To do this, I inverted
the ufs2 flag into a ufs1 flag, since ufs2 is now the default and
ufs1 is the edge case. There's a slight semantic change in the
key behavior: '2' no longer toggles, it changes the selection to UFS2.
This is very similar to a patch David O'Brien sent me at one point, and
that I couldn't find.
Approved by: re (telecon)
Reviewed by: mckusick, phk, bmah
editor, in order to support specifying UFS2 as a newfs option.
(1) Support three different newfs types: NEWFS_UFS, NEWFS_MSDOS, and
NEWFS_CUSTOM. Don't mix up the arguments to them: you can't use
soft updates on an msdos file system.
(2) Distinguish adding new arguments to the newfs command line from
replacing it. Permit the addition of new arguments by the user for
NEWFS_UFS. If we entirely replace the command line provided by
sysinstall, call it NEWFS_CUSTOM. 'N' will now add additional
arguments; 'Z' will opt to replace the newfs command line entirely,
but will prompt the user with their current command line as a
starting point.
(3) Construct the newfs command line dynamically based on the options
provided by the user at label-time. Right now, this means selecting
UFS1 vs. UFS2, and the soft updates flag. Drop in some variables
to support ACLs and MAC Multilabel in the future also, but don't
expose them now.
This provides sysinstall with the ability to do more "in band" editing
of the newfs command line, so we can provide more support for the user,
but doesn't sacrifice the ability to entirely specify the newfs command
line of the user is willing to give up on the cushiness factor. It
also makes it easier for us to specify defaults in the future, and
define conditional behavior based on user configuration selections.
For now, we default to UFS1, and permit UFS2 to be used as the root
only on non-i386 systems.
While I was there, I dropped the default fragment and block sizes,
since newfs has much more sensible defaults now.
Reviewed by: jhb, marcel
Approved by: re
ia64 bits from: marcel
This looks like it was developed offline, and is being spammed over the
top of the existing. "That's fine by me! I dont really care how you do
it, just get it in there..." said Jordan in a conversation a short while
ago...
