Robert White
2014-Nov-18 10:52 UTC
BUG :: btrfs resize should require mount point not just /some/path
So here's a thing... If you've got a BTRFS root file system and you mount go to resize a removable media and you make a typo you can easily resize your root instead of a target. mkdir /media/vol1 /media/vol2 mount /dev/sdz1 /media/vol2 # intended vol1 btrfs resize -32G /media/vol1 umount /dev/sdz1 #proceed to fark up /dev/sdz1 with partitioning tools Since resize will accept _any_ existing directory (or even filename?) as the target of a resize instead of limiting the targets to known mount-points it pretty much invites mistakes. The system _should_ error out on any path thats not a mount point in the name of safety alone. A message like "/some/path not a mounted file system" would be less surprising than operating on a file system when any arbitrary directory is named. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html