On Fri, Dec 26, 2008 at 4:39 AM, David Wolfskill <[email protected]> wrote:
> On Fri, Dec 26, 2008 at 09:35:42AM +0300, Sergey Zaharchenko wrote:
>> ...
>> Some of the stuff you want can be found here:
>>
>> r...@shark:~# file -s /dev/ufs/home
>> /dev/ufs/home: Unix Fast File system [v2] (little-endian) last mounted on
>> /home, volume name home, last written at Fri Dec 26 06:33:07 2008, clean
>> flag 0, readonly flag 0, number of blocks 13631488, number of data blocks
>> 13202246, number of cylinder groups 145, block size 16384, fragment size
>> 2048, average file size 16384, average number of files in dir 64, pending
>> blocks to free 4, pending inodes to free 0, system-wide uuid 0, minimum
>> percentage of free blocks 8, TIME optimization
>>
>> You probably want the clean flag (which is 0 for me because that device
>> node is mounted).
>
> Very nice; thanks! Seems that both ffsinfo(8) & file(1) can do the job
> quickly; dumpfs(8) can do it, but takes around 33 seconds for a 400 GB
> file system (because it also dumps the cylinder groups).
Be warned that file(1) resides at /usr/bin and depends on
/usr/share/misc/magic*, so it may not be available in early boot
stages, when /usr is not mounted yet. The following combination will
suffice, and depends only on /sbin and /stand:
/sbin/ffsinfo -l 1 /usr/local | /rescue/sed -n 's/^clean *int8_t
*\(.*\)/\1/p'
--
cd /usr/ports/sysutils/life
make clean
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