NetBSD Problem Report #33753

From dholland@eecs.harvard.edu  Sat Jun 17 03:17:53 2006
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Date: Fri, 16 Jun 2006 21:15:54 -0400 (EDT)
From: dholland@eecs.harvard.edu
Reply-To: dholland@eecs.harvard.edu
To: gnats-bugs@NetBSD.org
Subject: don't installworld to a full disk
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>Number:         33753
>Category:       misc
>Synopsis:       don't installworld to a full disk
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jun 17 03:20:01 +0000 2006
>Originator:     David A. Holland <dholland@eecs.harvard.edu>
>Release:        NetBSD 3.99.21 (-20060616)
>Organization:
>Environment:
System: NetBSD tanaqui 3.99.21 NetBSD 3.99.21 (TANAQUI) #4: Fri Jun 16 11:23:47 EDT 2006 dholland@tanaqui:/usr/src/sys/arch/i386/compile/TANAQUI i386
Architecture: i386
Machine: i386
>Description:

	I discovered the hard way today that if you installworld to a
	full (or nearly full) disk, it turns into "eraseworld" - it
	truncates what it touches and it doesn't stop, so if running
	unattended it'll trash the system pretty thoroughly.

	Recovery is pretty straightforward: clear some space, then
	redo the installworld. (But if using build.sh, be sure it
	doesn't try to rebuild nbmake, as that will fail in bizarre
	ways.)

	It would be nice if it didn't do this. Not a tremendously big
	problem though.

>How-To-Repeat:

	As above.

>Fix:
	Probably not that hard. :-)

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