Andy Isaacson <[EMAIL PROTECTED]> wrote: > > On modern Linux, apparently the correct way to bypass the buffer cache > when writing to a block device is to open the block device with > O_DIRECT. This enables, for example, the user to more easily force a > reallocation of a single sector of an IDE disk with a media error > (without overwriting anything but the 1k "sector pair" containing the > error). dd(1) is convenient for this purpose, but is lacking a method > to force O_DIRECT. The enclosed patch adds a "conv=direct" flag to > enable this usage.
This would be rather nice to have. You'll need to ensure that the data is page-aligned in memory. While you're there, please add an fsync-before-closing option. _______________________________________________ Bug-coreutils mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-coreutils
