523 lines
19 KiB
Plaintext
523 lines
19 KiB
Plaintext
RELEASE NOTES
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FreeBSD Release 3.0-SNAPSHOT
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This is a SNAPSHOT release of FreeBSD 3.0-CURRENT and is aimed primarily
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at release testers. Some parts of the documentation may not be updated
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yet and should be reported if and when seen. Naturally, any installation
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failures or crashes should also be reported ASAP by sending mail to
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freebsd-bugs@FreeBSD.org or using the send-pr command (those preferring a
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WEB based interface can also see http://www.freebsd.org/send-pr.html).
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For information about FreeBSD and the layout of the 3.0-SNAPSHOT release
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directory (especially if you're installing from floppies!), see ABOUT.TXT.
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For installation instructions, see the INSTALL.TXT and HARDWARE.TXT files.
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1. What's new since 2.2.X-RELEASE
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------------------------------------
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KERNEL CHANGES:
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The code from 4.4BSD-Lite2 has been (finally) merged.
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The SMP (Symmetric MultiProcessing) branch has been merged.
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The kernel is mostly non-reentrant as yet, but work is under way.
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Secure RPC is now supported (and usable with NFS et al).
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Sun's WEBNFS standard is now supported.
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Use the new if_multiaddrs list for multicast addresses rather than the
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previous hackery involving struct in_ifaddr and arpcom. Get rid of the
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abominable multi_kludge.
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The new if_media selection method for ethernet drivers has been brought
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in, obtained from Jason Thorpe's implementation for NetBSD.
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Multi-session ISO-9660 CD-ROMs are now fully supported. By default, the
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last session will be mounted (including for root mounts). For non-root
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mounts, mount_cd9660(8) can take an argument to mount a particular
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session instead of the default one.
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The UPAGES are gone from the per-process address space which allows
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complete address space and page table sharing by reference count.
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Newly forked child processes return directly to user mode rather than
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return up through the fork() syscall tree. This eliminates the kernel
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stack copy at fork time and simplifies certain other internal operations.
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It is also needed to support the removal of the UPAGES. (The idea for
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this originally came from NetBSD, but we did it for different reasons.)
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vfork() is now fully functional by taking advantage of the new sharing
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semantics and a significant speedup has been measured. This can be
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disabled via the kern.fast_vfork sysctl variable in case of problems.
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Statically linked binaries from older releases and other BSD platforms
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are a problem since there was a bug in the 4.4BSD (net2, Lite and Lite2)
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popen() implementation. rfork() also has access to these facilities,
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intended for supporting kernel assisted threads.
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With the contribution of Berkeley Software Design, Inc., Jonathan Lemmon,
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Mike Smith, Sean Eric Fagan, and John Dyson, VM86 support has been added
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to the kernel, and BSD/OS's contributed dosemu has been ported.
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The SA_NOCLDWAIT flags has been implemented, featuring the System V
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option where a process can express its wish to never get zombies or
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SIGCHLD for dead children.
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An implementation of poll(2) is in place, the core of which is derived
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from the NetBSD implementation. Both the select() and poll() syscalls
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use the poll device, file and vnode ops routines.
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An implementation of issetugid(2) that is similar to the OpenBSD call
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of the same name. We set the flag in more cases than OpenBSD - our
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implementation is slightly more paranoid.
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Async IO is implemented (under non-SMP at this stage) with additional
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support for kernel assisted threads.
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Some other misc syscalls for compatability with other systems: getsid(2),
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setpgid(2), nanosleep(2).
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A new syscall signanosleep(2) which is like nanosleep(2), but a specific
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signal mask is used to determine which signals will wake the sleep. In
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a nutshell this is 'wait for a given set of signals for up to a certain
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amount of time'.
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sleep(3) and usleep(3) are now implemented in terms of signanosleep(2)
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and now have correct SIGALRM interaction semantics and sleep(3) correctly
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returns the time remaining. Some programs (notably apache httpd) bogusly
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depend on a sleep() "absorbing" a SIGALRM from a timer that expires during
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the life of the sleep.
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An in-kernel linker is implemented and intended to replace the lkm system
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with the bogosity that goes with it.
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All supported network protocols have been updated to avoid the ``big
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switch'' pr_usrreq(), and to pass a process pointer down to each user
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request that might need process credentials or want to sleep,
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replacing the previous hodgepodge of inspecting curproc (which only
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occasionally did the right thing) and the SS_PRIV socket state flag.
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The latter has now been eliminated, along with the SO_PRIVSTATE socket
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option which cleared it. Protocols are now also given the opportunity
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to override the generic send, receive, and poll routines, which will
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make it possible for a more efficient, protocol-specific
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implementation of these entry points in later releases. Finally, many
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parts of the network code have been modified to cease storing socket
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addresses and other metainformation in mbufs, in preparation for the
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eventual elimination thereof. The mechanism by which socket addresses
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are now returned is still highly subject to change as we experiment to
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discover the most efficient method.
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Responses to multicast ICMP ECHO REQUEST (``ping'') and ADDRESS MASK
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REQUEST packets can now be disabled via sysctl. The netstat program
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will print out statistics on how many times this happens.
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It is possible to compile in a font for syscons.
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The bootblocks can set VESA videomode 0x102 (800x600x16) before loading
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the kernel, this allows XFree86 to work in this resolution on most
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moderately recent graphics hardware, including many laptops.
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A set of patches are making their way to -current that allows syscons
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to operate in this mode too; contact phk@FreeBSD.org.
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A subtle and seldom bug in ffs has been fixed.
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The VFS name cache has been reworked to be more accountable and efficient.
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The generic part of VOP_LOOKUP() has been put it in system-wide function
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which filesystems can rely on for the canonical stuff.
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Vnode freelist handling has been hauled over. Vnodes are only on the
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freelist if nobody care about them.
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The kernel provides assistance to getcwd() if possible.
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SECURITY CHANGES:
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7/29 Lots of lpr/lpd security fixes merged from OpenBSD.
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8/22 buffer overflows in tip corrected (benign since tip isn't
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set[ug]id)
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8/26 buffer overflow in glob fixed, no know exploits
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8/27 vacation security problem with sendmail corrected (SNI)
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8/29 inetd sleeps less when children exit, making DoS attacks much
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harder.
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8/29 fts now race-proof and find -execdir added (-current only)
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8/31 games setuid -> setgid. Makes any games exploits benign (only
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score files vulnerable). Please report any problems to
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eivind@FreeBSD.org (score-file ownership problems are known)
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The suidperl vulnerability mentioned in the CERT advisory CA-97.17 is
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also believed to be fixed.
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USERLAND CHANGES:
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The default username length has increased to 16 characters.
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Caution: Old utmp/wtmp files will NOT work with this change since
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the data records will be of the old size. For a conversion utility
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to aid with this, see /usr/src/tools/3.0-upgrade.
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/etc/sysconfig now replaced by more compact /etc/rc.conf file
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(new since 2.2.1).
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fdisk(8) now numbers disk slices from 1 to 4 rather than from 0 to 3.
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This brings it in line with the numbers used in the device names
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in /dev.
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When operating over the network, finger(1) no longer closes the socket
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immediately after sending its request, but instead waits for the
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remote end to close first. (The specification is ambiguous, so we are
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following the behavior which interoperates with the most servers.)
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This means that it is now possible to use the MIT directory and finger
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people at certain broken Linux machines.
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There is a new flag to fetch(1) which allows it to talk to certain
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broken HTTP implementations which react badly to a request message
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immediately followed by a close of the connection.
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netstat(1) now uses sysctl(3) to retrieve more statitistics groups, and
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uses the correct, unsigned format for printing most of them out.
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2. Supported Configurations
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---------------------------
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FreeBSD currently runs on a wide variety of ISA, VLB, EISA and PCI bus
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based PC's, ranging from 386sx to Pentium class machines (though the
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386sx is not recommended). Support for generic IDE or ESDI drive
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configurations, various SCSI controller, network and serial cards is
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also provided.
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What follows is a list of all peripherals currently known to work with
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FreeBSD. Other configurations may also work, we have simply not as yet
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received confirmation of this.
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2.1. Disk Controllers
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---------------------
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WD1003 (any generic MFM/RLL)
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WD1007 (any generic IDE/ESDI)
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IDE
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ATA
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Adaptec 1535 ISA SCSI controllers
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Adaptec 154x series ISA SCSI controllers
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Adaptec 174x series EISA SCSI controller in standard and enhanced mode.
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Adaptec 274X/284X/2940/3940 (Narrow/Wide/Twin) series ISA/EISA/PCI SCSI
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controllers.
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Adaptec AIC7850 on-board SCSI controllers.
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Adaptec AIC-6260 and AIC-6360 based boards, which includes the AHA-152x
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and SoundBlaster SCSI cards.
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** Note: You cannot boot from the SoundBlaster cards as they have no
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on-board BIOS, such being necessary for mapping the boot device into the
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system BIOS I/O vectors. They're perfectly usable for external tapes,
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CDROMs, etc, however. The same goes for any other AIC-6x60 based card
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without a boot ROM. Some systems DO have a boot ROM, which is generally
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indicated by some sort of message when the system is first powered up
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or reset, and in such cases you *will* also be able to boot from them.
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Check your system/board documentation for more details.
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Buslogic 545S & 545c
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Buslogic 445S/445c VLB SCSI controller
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Buslogic 742A, 747S, 747c EISA SCSI controller.
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Buslogic 946c PCI SCSI controller
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Buslogic 956c PCI SCSI controller
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SymBios (formerly NCR) 53C810, 53C825, 53c860 and 53c875 PCI SCSI
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controllers:
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ASUS SC-200
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Data Technology DTC3130 (all variants)
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NCR cards (all)
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Symbios cards (all)
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Tekram DC390W, 390U and 390F
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Tyan S1365
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Tekram DC390 and DC390T controllers (maybe other cards based on the
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AMD 53c974 as well).
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NCR5380/NCR53400 ("ProAudio Spectrum") SCSI controller.
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DTC 3290 EISA SCSI controller in 1542 emulation mode.
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UltraStor 14F, 24F and 34F SCSI controllers.
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Seagate ST01/02 SCSI controllers.
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Future Domain 8xx/950 series SCSI controllers.
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WD7000 SCSI controller.
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With all supported SCSI controllers, full support is provided for
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SCSI-I & SCSI-II peripherals, including Disks, tape drives (including
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DAT and 8mm Exabyte) and CD ROM drives.
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The following CD-ROM type systems are supported at this time:
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(cd) SCSI interface (also includes ProAudio Spectrum and
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SoundBlaster SCSI)
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(mcd) Mitsumi proprietary interface (all models)
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(matcd) Matsushita/Panasonic (Creative SoundBlaster) proprietary
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interface (562/563 models)
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(scd) Sony proprietary interface (all models)
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(wcd) ATAPI IDE interface (should be considered BETA quality).
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Unmaintained drivers, they might or might not work for your hardware:
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Adaptec 1510 series ISA SCSI controllers (not for bootable devices)
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Adaptec 152x series ISA SCSI controllers
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Floppy tape interface (Colorado/Mountain/Insight)
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2.2. Ethernet cards
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-------------------
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Allied-Telesis AT1700 and RE2000 cards
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AMD PCnet/PCI (79c970 & 53c974 or 79c974)
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SMC Elite 16 WD8013 ethernet interface, and most other WD8003E,
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WD8003EBT, WD8003W, WD8013W, WD8003S, WD8003SBT and WD8013EBT
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based clones. SMC Elite Ultra is also supported.
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DEC EtherWORKS III NICs (DE203, DE204, and DE205)
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DEC EtherWORKS II NICs (DE200, DE201, DE202, and DE422)
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DEC DC21040, DC21041, or DC21140 based NICs (SMC Etherpower 8432T, DE245, etc)
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DEC FDDI (DEFPA/DEFEA) NICs
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Fujitsu MB86960A/MB86965A
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HP PC Lan+ cards (model numbers: 27247B and 27252A).
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Intel EtherExpress (not recommended due to driver instability)
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Intel EtherExpress Pro/10
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Intel EtherExpress Pro/100B PCI Fast Ethernet
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Isolan AT 4141-0 (16 bit)
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Isolink 4110 (8 bit)
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Novell NE1000, NE2000, and NE2100 ethernet interface.
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3Com 3C501 cards
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3Com 3C503 Etherlink II
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3Com 3c505 Etherlink/+
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3Com 3C507 Etherlink 16/TP
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3Com 3C509, 3C579, 3C589 (PCMCIA), 3C590/592/595/900/905 PCI and EISA
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(Fast) Etherlink III / (Fast) Etherlink XL
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Toshiba ethernet cards
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PCMCIA ethernet cards from IBM and National Semiconductor are also
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supported.
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Note that NO token ring cards are supported at this time as we're
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still waiting for someone to donate a driver for one of them. Any
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takers?
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2.3. Misc
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---------
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AST 4 port serial card using shared IRQ.
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ARNET 8 port serial card using shared IRQ.
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ARNET (now Digiboard) Sync 570/i high-speed serial.
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Boca BB1004 4-Port serial card (Modems NOT supported)
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Boca IOAT66 6-Port serial card (Modems supported)
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Boca BB1008 8-Port serial card (Modems NOT supported)
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Boca BB2016 16-Port serial card (Modems supported)
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Cyclades Cyclom-y Serial Board.
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STB 4 port card using shared IRQ.
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SDL Communications Riscom/8 Serial Board.
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SDL Communications RISCom/N2 and N2pci high-speed sync serial boards.
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Stallion multiport serial boards: EasyIO, EasyConnection 8/32 & 8/64,
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ONboard 4/16 and Brumby.
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Adlib, SoundBlaster, SoundBlaster Pro, ProAudioSpectrum, Gravis UltraSound
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and Roland MPU-401 sound cards.
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Connectix QuickCam
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Matrox Meteor Video frame grabber
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Creative Labs Video Spigot frame grabber
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Cortex1 frame grabber
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Hauppauge Wincast/TV boards (PCI)
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STB TV PCI
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Intel Smart Video Recorder III
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HP4020i, Philips CDD2000 and PLASMON WORM (CDR) drives.
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PS/2 mice
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Standard PC Joystick
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X-10 power controllers
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GPIB and Transputer drivers.
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Genius and Mustek hand scanners.
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FreeBSD currently does NOT support IBM's microchannel (MCA) bus.
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3. Obtaining FreeBSD
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--------------------
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You may obtain FreeBSD in a variety of ways:
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3.1. FTP/Mail
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-------------
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You can ftp FreeBSD and any or all of its optional packages from
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`ftp.freebsd.org' - the official FreeBSD release site.
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For other locations that mirror the FreeBSD software see the file
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MIRROR.SITES. Please ftp the distribution from the site closest (in
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networking terms) to you. Additional mirror sites are always welcome!
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Contact freebsd-admin@FreeBSD.org for more details if you'd like to
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become an official mirror site.
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If you do not have access to the Internet and electronic mail is your
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only recourse, then you may still fetch the files by sending mail to
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`ftpmail@ftpmail.vix.com' - putting the keyword "help" in your message
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to get more information on how to fetch files using this mechanism.
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Please do note, however, that this will end up sending many *tens of
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megabytes* through the mail and should only be employed as an absolute
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LAST resort!
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3.2. CDROM
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----------
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FreeBSD 3.0-SNAP and 2.2.x-RELEASE CDs may be ordered on CDROM from:
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Walnut Creek CDROM
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4041 Pike Lane, Suite D
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Concord CA 94520
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1-800-786-9907, +1-510-674-0783, +1-510-674-0821 (FAX)
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Or via the Internet from orders@cdrom.com or http://www.cdrom.com.
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Their current catalog can be obtained via ftp from:
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ftp://ftp.cdrom.com/cdrom/catalog
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Cost per -RELEASE CD is $39.95 or $24.95 with a FreeBSD subscription.
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FreeBSD 3.0-SNAP CDs are $39.95 or $14.95 with a FreeBSD-SNAP subscription
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(-RELEASE and -SNAP subscriptions are entirely separate). With a
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subscription, you will automatically receive updates as they are released.
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Your credit card will be billed when each disk is shipped and you may cancel
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your subscription at any time without further obligation.
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Shipping (per order not per disc) is $5 in the US, Canada or Mexico
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and $9.00 overseas. They accept Visa, Mastercard, Discover, American
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Express or checks in U.S. Dollars and ship COD within the United
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States. California residents please add 8.25% sales tax.
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Should you be dissatisfied for any reason, the CD comes with an
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unconditional return policy.
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4. Reporting problems, making suggestions, submitting code.
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-----------------------------------------------------------
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Your suggestions, bug reports and contributions of code are always
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valued - please do not hesitate to report any problems you may find
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(preferably with a fix attached, if you can!).
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The preferred method to submit bug reports from a machine with
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Internet mail connectivity is to use the send-pr command or use the CGI
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script at http://www.freebsd.org/send-pr.html. Bug reports
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will be dutifully filed by our faithful bugfiler program and you can
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be sure that we'll do our best to respond to all reported bugs as soon
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as possible. Bugs filed in this way are also visible on our WEB site
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in the support section and are therefore valuable both as bug reports
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and as "signposts" for other users concerning potential problems to
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watch out for.
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If, for some reason, you are unable to use the send-pr command to
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submit a bug report, you can try to send it to:
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freebsd-bugs@FreeBSD.org
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Note that send-pr itself is a shell script that should be easy to move
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even onto a totally different system. We much prefer if you could use
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this interface, since it make it easier to keep track of the problem
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reports. However, before submitting, please try to make sure whether
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the problem might have already been fixed since.
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Otherwise, for any questions or tech support issues, please send mail to:
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freebsd-questions@FreeBSD.org
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Additionally, being a volunteer effort, we are always happy to have
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extra hands willing to help - there are already far more desired
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enhancements than we'll ever be able to manage by ourselves! To
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contact us on technical matters, or with offers of help, please send
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mail to:
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freebsd-hackers@FreeBSD.org
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Please note that these mailing lists can experience *significant*
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amounts of traffic and if you have slow or expensive mail access and
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are only interested in keeping up with significant FreeBSD events, you
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may find it preferable to subscribe instead to:
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freebsd-announce@FreeBSD.org
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All of the mailing lists can be freely joined by anyone wishing
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to do so. Send mail to MajorDomo@FreeBSD.org and include the keyword
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`help' on a line by itself somewhere in the body of the message. This
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will give you more information on joining the various lists, accessing
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archives, etc. There are a number of mailing lists targeted at
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special interest groups not mentioned here, so send mail to majordomo
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and ask about them!
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5. Acknowledgements
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-------------------
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FreeBSD represents the cumulative work of many dozens, if not
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hundreds, of individuals from around the world who have worked very
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hard to bring you this release. For a complete list of FreeBSD
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project staffers, please see:
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http://www.freebsd.org/handbook/staff.html
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or, if you've loaded the doc distribution:
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file:/usr/share/doc/handbook/staff.html
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Special mention to:
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The donors listed at http://www.freebsd.org/handbook/donors.html
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CalWeb Internet Services for the loan of a P6/200 machine for
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speedy package building.
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Everyone at Montana State University for their initial support.
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And to the many thousands of FreeBSD users and testers all over the
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world, without whom this release simply would not have been possible.
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We sincerely hope you enjoy this release of FreeBSD!
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The FreeBSD Project
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