Hi,
> I am trying to install NetBSD 10.1 on a Mac Classic II with 10MB of
> RAM, a BlueSCSI, and no FPU.
...
> then I get these messages repeated 6 times:
> [...] sbc0: parity error!
> Any ideas on what to try next?
The Mac Classic II is quite similar to the LC II. I've played with NetBSD
quite a bit on the LC II.
I've run in to the parity issue. After putting things aside for a while,
then coming back to it later, I decided to try -current (which is now 11),
and the parity issue wasn't happening.
If you want to try the kernel configuration that runs on my LC II, I think
there're only two little things to change.
First, there's an issue with LC-PDS, but since the Classic II doesn't have
an LC-PDS slot, that doesn't concern you. You can remove the
"NUBUS_MIN_SLOT", "nubus0 at mainbus?" and "ae* at nubus?" lines below.
Second, since you don't have an FPU, you'll need to add "options FPU_EMULATE"
If you'd like to try a pre-built kernel, I've made one from the kernel
config below with the changes mentioned above. It's 2456032 bytes, 1133545
gzipped:
https://www.klos.com/~john/netbsd_classicii.gz
It's quite frankly amazing that a modern OS can even run on a machine with
just 10 megabytes of memory!
John
# Kernel configuration file for Mac LC II with 10 megs.
# Note Nubus slot change needed.
# Also note that LC machines require SBC SCSI.
include "arch/mac68k/conf/std.mac68k"
makeoptions COPTS="-O2 -m68030 -fno-reorder-blocks -fno-omit-frame-pointer -fno-inline-small-functions"
options DDB # in-kernel debugger
options DDB_COMMANDONENTER="trace;show registers;ps"
maxusers 6 # estimated number of users
options M68030
options NUBUS_MIN_SLOT="0xE"
file-system FFS # UFS
file-system PTYFS # /dev/pts/N support
options FFS_NO_SNAPSHOT # No FFS snapshot support
options INET # IP + ICMP + TCP + UDP
options INET6 # IPV6
options WSEMUL_VT100 # VT100 / VT220 emulation
options WSDISPLAY_COMPAT_ITEFONT # use ite font (6x10)
config netbsd root on ? type ?
mainbus0 at root
obio0 at mainbus?
nubus0 at mainbus?
adb0 at obio?
aed* at adb? # ADB event device
akbd* at adb? # ADB keyboard
ams* at adb? # ADB mouse
intvid0 at obio? # Internal video hardware
macfb* at intvid?
wsdisplay* at macfb? console ?
wskbd* at akbd? console ?
wsmouse* at ams?
zsc0 at obio?
zstty* at zsc? channel ?
sbc0 at obio? addr 0 flags 0x1 # MI SCSI NCR 5380
scsibus* at scsi?
sd* at scsibus? target ? lun ? # SCSI disk drives
st* at scsibus? target ? lun ? # SCSI tape drives
cd* at scsibus? target ? lun ? # SCSI CD-ROM drives
ch* at scsibus? target ? lun ? # SCSI autochangers
se* at scsibus? target ? lun ? # SCSI ethernet
ss* at scsibus? target ? lun ? # SCSI scanners
uk* at scsibus? target ? lun ? # SCSI unknown
ae* at nubus? # DP8390-based
asc0 at obio? # ASC/EASC audio
pseudo-device loop # network loopback
pseudo-device accf_data # "dataready" accept filter
pseudo-device accf_http # "httpready" accept filter
pseudo-device pty # pseudo-terminals