Extracting block pointer list -- ffsinfo?

Peter Jeremy peterjeremy at optushome.com.au
Sat Aug 8 02:37:36 UTC 2009

On 2009-Aug-06 10:39:57 -0500, Jamie Ostrowski <jamie.ostrowski at gmail.com> wrote:
>    I'm a student studying filesystems, and I'd like to find a way to list
>the block pointers in an inode. Are there any tools in FreeBSD that can do

ffsinfo(8) or fsdb(8)

>db         ufs2_daddr_t[0] 0x             bc8

It might not be obvious without looking in the source code (this particular
output comes from /usr/src/sbin/growfs/debug.c) but that actually _is_ the
list of blocks.  It is more obvious if you run ffsinfo on a larger file.

Peter Jeremy
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