I've been trying to upgrade a 1.4.1 system to 1.5_Alpha using the cdrom
method, and am either doing something wrong, or the .iso image is
missing something. 

I burned the cdrom pretty easily, and it boots fine. It doesn't start
the install/upgrade program, and even if I mount the cd and go to
upgrade.sh, it won't run, because it can't find /kern/msgbuf. 

I tried doing it by hand, which isn't normally a problem, but I don't
know how to manually update the boot loader, and without that, the 1.5
kernel won't boot just by copying it to /

Any ideas?

Brad



Paul Kranenburg wrote:
> 
> Since it has rapidly become impossible to cram the former self-contained
> `bootfs' filesystem into the space available on a floppy disk, I've
> decided to make the sparc floppy-boot method a two stage affair.
> 
> The new bootable image `bootfs' now contains only the tools necessary
> to bootstrap into existence a memory-based filesystem distributed on
> a second floppy image as a plain tar file. This tar file is
> constructed from the miniroot image and contains everything from
> the miniroot except the kernel & boot programs.
> 
> This means that there's now only one installation image: the miniroot.
> `bootfs' and its associated `ramdisk' image are merely tools to get
> the miniroot loaded using a floppy medium.
> 
> The default installation/upgrade tools are still the old and trusted
> miniroot shell scripts, but sysinst is offered as an alternative.
> 
> As a corollary, a CD-R image should also use the miniroot image as the
> bootable UFS partition. A machine-dependent target for creating an
> ISO CD image has been added to etc/etc.sparc/Makefile.inc.
> 
> I expect to have a fresh snapshot with all this in place by the week-end.
> 
> -pk