Problems booting 4.8R PicoBSD
freebsdfan at hotmail.com
Tue Jul 15 08:23:38 PDT 2003
I have a small PicoBSD based firewall project called thewall
(http://thewall.sf.net) which was originally developed on FreeBSD 4.4R. I
no problems updating to 4.5R, however I've never been able to get it to
since the isc dhcp code was updated prior to the 4.6 release. Thanks to
Bob Bishop's help I'm now past that problem.
The primary reason I'm messing around it again is that I submitted a kernel
bug report (kern/31085) against the 4.4 release which was recently closed
because I could unable to confirm if the bug still existed on the current
release. So I'm trying to PXE boot my project again to see if the earlier
bug still exists or not.
My 4.8R based kernel is booting via PXE using dhcp/tftp/nfs, but hanging
decompressing the kernel. A packet sniffer shows that it was trying to
read /pxeroot/etc/fstab.gz and failing that /pxeroot/etc/fstab. I believe
that means that the kernel didn't find the embedded root file system image
for some reason. I added a couple of printfs in md.c md_takeroot() to try
to figure out the problem, but md_takeroot() never seems to be called.
I have verified that the mfs image was written into the kernel in the
place by looking at a hex dump of the final image.
I would appreciate any hints anyone can offer!
My PicoBSD configuration file is as follows:
--- snip ---
#Line starting with #PicoBSD contains PicoBSD build parameters
#marker def_sz init MFS_inodes floppy_inodes
#PicoBSD 2500 init 3072 32768
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep
options MFS #Memory Filesystem
options MD_ROOT #MFS as root
options COMPAT_43 #Compatible with BSD 4.3 [KEEP
# The 'ATA' driver supports all ATA and ATAPI devices.
# It can reuse the majors of wd.c for booting purposes.
# You only need one "device ata" for it to find all
# PCI ATA/ATAPI devices on modern machines.
device ata0 at isa? port IO_WD1 irq 14
device atadisk # ATA disk drives
# atkbdc0 controlls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1
device vga0 at isa? port ?
# syscons is the default console driver, resembling an SCO console
device sc0 at isa?
device npx0 at nexus? port IO_NPX irq 13
#options CONSPEED=19200 #default speed for serial console
device sio0 at isa? port IO_COM1 irq 4
#device sio1 at isa? port IO_COM2 irq 3
# The following Ethernet NICs are all PCI devices.
device miibus # MII bus support
#device sis # Silicon Integrated Systems SiS 900/SiS
#device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
pseudo-device pty 16
pseudo-device bpf 2 #Berkeley packet filter
--- snip ---
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