On Tue, Nov 10, 2015 at 12:06:03PM +0000, Edward Ned Harvey (blu) wrote: > If you want to backup the entire filesystem in such a way that all the above > is unnecessary - you instead boot from rescue media, partition & format the > hard disk, and simply run "restore" and boot back into the restored system as > if no problem had ever occurred, then assuming you're using ext filesystems, > you need dump & restore. (Or you need storage on some snapshotting storage > system external to the system you're restoring.)
According to Ted Ts'o (filesystem developer), it is NOT a recommended way to backup your filesystem: http://www.gossamer-threads.com/lists/linux/kernel/1197768 "It does read the mounted block device directly, and so it's certainly not a _recommended_ way to back up your ext4 filesystem. It should work, though, since it just uses the high-level libext2fs functions --- and a while back, I think I did a quick test and found that it really did work. So I'm not sure what broke, but it might not be that hard to fix. That being said, it may not be worth it to fix it, since with delayed allocation, backups using dump will be even more unreliable than they were before. " - Ted Ts'o _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
