freebsd-update hang on 10.0-BETA2->BETA4 upgrade

[Glen Barber]

On Tue, Dec 03, 2013 at 10:14:40AM -0500, Michael W. Lucas wrote:
> Hi,
> 
> I'm trying to upgrade a system from BETA2 to BETA4.
> 

Have you patched freebsd-update(8) prior to the upgrade?

http://www.freebsd.org/security/advisories/FreeBSD-EN-13:04.freebsd-update.asc
http://www.freebsd.org/security/advisories/FreeBSD-EN-13:05.freebsd-update.asc

> First I run:
> 
> # freebsd-update -r 10.0-BETA4 upgrade
> 
> This goes fine.
> 
> When I run
> 
> # freebsd-update install
> 
> the system churns for a while, then hangs.
> 
> freebsd-update has no verbose mode that I can see. I tried running it
> under truss to see if there was some obvious error from ZFS
> permissions or something, and got:
> 
> stat("/sbin/tr",0x7fffffffc8f0)                  ERR#2 'No such file or directory'
> stat("/bin/tr",0x7fffffffc8f0)                   ERR#2 'No such file or directory'
> stat("/usr/sbin/tr",0x7fffffffc8f0)              ERR#2 'No such file or directory'
> stat("/usr/bin/tr",{ mode=-r-xr-xr-x ,inode=2729,size=20960,blksize=20992 }) = 0 (0x0)
> pipe(0x7fffffffca18)                             = 0 (0x0)
> fork()                                           = 68697 (0x10c59)
> close(3)                                         = 0 (0x0)
> close(5)                                         = 0 (0x0)
> fork()                                           = 68698 (0x10c5a)
> close(4)                                         = 0 (0x0)
> getpgrp()                                        = 61524 (0xf054)
> 
> It sits here, no error, no nothing until I hit ^C and it dies.
> 
> ZFS is configured as per https://forums.freebsd.org/viewtopic.php?&t=31557
> 
> Any suggestions on how to debug this?
> 

What is shown when you hit ^T when it hangs?

Glen

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