On 06 January 2012 at 15:59pm, Cameron Simpson wrote:
> On 07Jan2012 08:28, I wrote:
> | On 06Jan2012 12:43, Dean S. Messing <deanm@xxxxxxxxxxxxx> wrote:
> | | On my F13 machine,
> | |
> | | find / \! -fstype ext4 -prune -o -print
> | |
> | | prints every file that is in an ext4 filesystem mounted on /, and prunes
> | | those in any other type of fs.
> | |
> | | On my F15 the same command prints nothing. Why might that be?
> |
> | Is / an ext4 fs? If not, the find will terminate immediately.
> | I would run the find with a -print before the -prune and withjout th
> | trailing print - see what the find is pruning.
>
> It is also worth noting that your find may not find nested ext4 mounts.
> Supposing an ext4 mount point is mounted inside an ext3 mount? Your
> prune will prevent find from descending deep enough to find it.
>
> Alterative approach:
>
> mount \
> | awk '$5 == "ext3" {print $3}' \
> | while read -r fstop
> do find "$fstop" -xdev -print
> done
>
> Change ext3 to ext4 (I was testing on an ext3 only system).
My actual "find" script is more complicated and doesn't have the problem
you bring up.
I just wanted to present the "kernel" of the problem so people
could tell me what's going on.
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