port-amd64/53113: NetBSD_8.0_BETA/amd64 fails to boot.

[utkarsh009%yandex.com@localhost]

>Number:         53113
>Category:       port-amd64
>Synopsis:       NetBSD_8.0_BETA/amd64 fails to boot.
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 20 15:15:00 +0000 2018
>Originator:     Utkarsh Anand
>Release:        8.0_BETA
>Organization:
>Environment:
>Description:
There seems to be multitudes of problems with 8.0_BETA. Here's the error log from my laptop:
sd0: 12820480 trailing sectors not covered by disklabel
sd0: 12820480 trailing sectors not covered by disklabel
sd0: 12820480 trailing sectors not covered by disklabel
WARNING: 21 errors while detecting hardware: check system log.
boot device: sd0
root on sd0a dumps on sd0b
sd0: 12820480 trailing sectors not covered by disklabel
root filesystem type: ffs
kern.module.path=/stand/amd64/8.0/modules
iwm0: firmware too short: 247388 bytes
iwm0: firmware parse error. section type -2015102356
sd0(umass0:0:0:0): Check condition on CDB: 0x2a 00 00 00 08 10 00 00 04 00
    SENSE KEY:  Not Ready
     ASC/ASCQ:  ASC 0xff ASCQ 0xff

sd0a: error writing fsbn 16 of 16-19 (sd0 bn 2064: cn 1 tn 0 sn 16)
mount: exec /sbin/mount_tmpfs for /tmp: Input/output error
mount: exec /usr/sbin/mount_tmpfs for /tmp: Input/output error
/etc/rc: cannot create /tmp/gettytab: I/O error
/etc/rc: cannot create /tmp/gettytab: I/O error
/etc/rc: cannot create /tmp/gettytab: I/O error
init: can't add utmpx record for 'system boot': Input/output error
init: fatal signal: Segmentation fault
acpibat0: normal capacity on 'charge state'
panic: init died (signal 0, exit 11)
fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip 0xffffffff8021c4c5 cs 0x8 rflags 0x246 cr2 0x7f277e89d2ed
 ilevel 0 rsp 0xfffffe810f890d20
curlwp 0xfffffe810f847700 pid 1.1 lowest kstack 0xfffffe810f08d2c0
stopped in pid 1.1 (init) at    netbsd:breakpoint+0x5:  leave
db{2}> bt
breakpoint at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0x148
snprintf() at netbsd:snprintf
exit1() at netbsd:exit1+0x6e0
sys_exit() at netbsd:sys_exit+0x3d
syscall() at netbsd:syscall+0x1d8
--- syscall (number 1) ---
7f277e0fe4fa

As you can see:
1. There's a problem with the wifi driver.
2. dd'ing the 8.0_BETA image onto my usb drive seems to have crippled it. I get an I/O error even while trying to format it. I cannot overwrite any other image even with `dd` now.
3. On my desktop it also fails to get the keyboard device working. I have tried with two keyboards so far and one of them used to work with 7.1.x and 7.99.x.

So, has anyone had any luck installing it using the `install-image`?
I was just curious, so, I decided checking the disklabel on my FreeBSD netbook and it doesn't seem to be correct too. Here's the output:
disklabel# /dev/da1s1:
8 partitions:
#                  size        offset         fstype       [fsize bsize bps/cpg]
  a:       2865152         2048       4.2BSD        1024  8192    16
  c:       2865152         2048       unused              0     0     # "raw" part, don't edit
  d:       2867200               0       unused              0     0
partition a: partition extends past end of unit
partition c: partition extends past end of unit
disklabel: partition c doesn't start at 0!
disklabel: An incorrect partition c may cause problems for standart system utilities
partition d: partition extends past end of unit

For the record, I'm unable to edit the disklabel! My usb device seems to have gone forever.

>How-To-Repeat:

>Fix: