5.1-beta2 failed upgrade install

[Masachika ISHIZUKA]

  Hi, this is ishizuka at ish.org.

  I want to upgrade from 5.1-BETA-20030522-JPSNAP to 5.1-BETA2
with CD-ROM (5.1-BETA2-i386-disc1.iso).
  It stopped as follows.

1182720 byte read from base dist, chunk 1 of 40 @ 394.2KBytes/sec.
kernel: type 12 trap, code=0
Stopped at _mtx_lock_flags+0x43: cmpl $0xc05541ac,0(%ebx)
db>

  The specification of my machine is shown below.

CPU: Dual Xeon 2.4GHz
RAM: 2 giga bytes
HDD: 40 giga bytes
    (/: 256MB (ufs2), swap: 1GB, /var: 512MB(ufs2), /usr: 2GB(ufs2),
     and other partiton is not mounted while upgrading)

-- 
ishizuka at ish.org