059d3e63e3
- the major number wasn't checked, so accesses beyond the end of bdevsw[] were possible. Bogus major numbers are easy to get because `sysctl -w' doesn't handle dev_t's reasonably - it doesn't convert names to dev_t's and it converts the number 1025 to the dev_t 0x35323031. - Driver d_psize() functions return -1 to indicate error ENXIO or ENODEV (the interface is too braindamaged to say which). -1 was interpreted as a size and resulted in the bogus error ENOSPC. - it was possible to set the dumpdev for devices without a d_psize() function. This is equivalent to setting the dumpdev to NODEV except it confuses sysctl. - change a 512 to DEV_BSIZE. There is an official macro dtoc() for converting "pages" to disk blocks but it is never used in /usr/src/sys. There is much confusion between PAGE_SIZE sized pages and NBPG sized pages. Maxmem consists of both. Not fixed: - there is nothing to invalidate the dumpdev if the media goes away. This reduces the benefits of the early calculation of dumplo. Bounds checking in the dump routines is relied on to reduce the risk of damage and little would be lost by relying on the dump routines to calculate dumplo. - no attempt is made to stay away from the start of the device to avoid clobbering labels. Fix wrong && anachronistic comment about the type of bootdev. Reviewed by: davidg Submitted by: Bruce Evans
-----------------------------------------
FreeBSD 2.0 --- ALPHA Release , ,
----------------------------------------- /( )`
\ \___ / |
Welcome to the ALPHA release of FreeBSD 2.0 - the /- _ `-/ '
first public snapshot of our new 4.4BSD Lite based (/\/ \ \ /\
operating system environment. This install proce- / / | ` \
dure is also at the ALPHA stage, and contains only O O ) / |
the minimum functionality required by an `-^--'`< '
*EXPERIENCED* person to install the system. (_.) _ ) /
It is our hope, of course, that the feedback `.___/` /
provided from this snapshot will `-----' /
greatly assist us in making the release <----. __ / __ \
of 2.0 much more user friendly. Your <----|====O)))==) \) /====
comments and criticisms are very <----' `--' `.__,' \
valuable to us, so please don't hesitate | |
in contacting us! Full details on where and \ / /\
how to provide feedback are given below. ______( (_ / \______/
,' ,-----' |
This install procedure is ALPHA code, and `--{__________)
may very possibly *DESTROY* the contents of your
ENTIRE DISK! Please do not proceed with this installation
unless you've adequately backed up your data first!
If any errors occur during this installation, you can see them
by toggling over to the alternate screen - type ALT-F2 to switch
over, ALT-F1 to switch back to the install screen. The debugging
output on the second screen may be very valuable to us in understanding
your bug report, so please be sure to take note of it when reporting
any failures in the installation! Thanks!
Menus and scrolling output windows may be traversed with the arrow
and Page Up/Page Down keys. To suspend the installation at any point,
hit ESC twice. Hitting TAB will move the focus to different controls.
If you've ever dealt with a DOS installation, you'll know how to deal
with this.
For a more complete description of what's new in this release, please
see the release notes.
For more documentation on this system, it is recommended that you purchase
the 4.4BSD Document Set from O'Reilly Associates and the USENIX Association.
ISBN 1-56592-082-1 We have no connection with O'Reilly, we're just
satisfied customers!
Have fun, and please let us know of any problems you encounter with
this release!
Comments should be sent to:
hackers@FreeBSD.org
Bug reports should be sent using the `send-pr' utility, if you
were able to get the system installed, otherwise to:
bugs@FreeBSD.org
And general questions to:
questions@FreeBSD.org
Please have patience if your questions are not answered right away -
this is an especially busy time for us, and our volunteer resources
are often strained to the limit (if not somewhat past!).
Thanks!
The FreeBSD Project