Comment 1 for bug 9104

Revision history for this message
Martin Pitt (pitti) wrote :

This is a difficult decision. SCSI devices like USB sticks, hard disks and
digital cameras are technically very similar and in fact the only thing that
tells them apart (that can be seen from the OS) are their vendor and model names
(which are pretty arbitrary).

We mount such devices with 'sync' to have a reasonably safe default for people
who just rip out their devices without proper unmounting. Depending on the
particular program, i. e. the size of chunks it writes to the device this
considerably slows down writing.

We will not change this for Warty, but for now I see several possible workarounds:

- you change to async at runtime by 'sudo mount -o remount,async /dev/sda1' (or
whatever your mounted partition(s) is/are)
- you create an fstab entry for sda which mounts it async (this requires that
the device is always plugged in at boottime)
- you change 'sync' to 'async' in the pmount source and rebuild the package