On Thursday 20 October 2005 5:57 pm, Randall R Schulz wrote:
The only reason to sync before shutting down is because the root file system cannot be unmounted.
I really never thought about this until now that you mention it. It's logic ok. However, I gave /etc/init.d/halt a look and there are two lines almost at the end: mount -no remount,ro / 2> /dev/null sync One would think (I did) that the / filesystem was unmounted and now it's being "remounted" read-only, which isn't the case. It's just the syntax of the command and its options that will make you think that. My question really is: why the sync command after the drive being mounted read-only? Isn't that a contradiction (to put it read-only, and the perform the sync command? Or is it that the "read-only" option doesn't apply for the actual writing of dirty pages to disk? Just food for thought... Thanks, Jorge