On Thu, Jun 13, 2024 at 07:33:53PM +0200, Niklas Cassel wrote: > > This is however wrong. See "20-082r23SPC-6: Removable Medium Bit > Expectations" which has since been integrated to SPC, which states that: > > """ > Reports have been received that some USB Memory Stick device servers set > the removable medium (RMB) bit to one. The rub comes when the medium is > actually removed, because... The device server is removed concurrently > with the medium removal. If there is no device server, then there is no > device server that is waiting to have removable medium inserted. > > Sufficient numbers of SCSI analysts see such a device: > - not as a device that supports removable medium; > but > - as a removable, hot pluggable device. > """ > > The definition of the RMB bit in the SPC specification has since been > clarified to match this. > > Thus, a USB stick should not have the RMB bit set (and neither shall an > eSATA nor a hot-plug capable port). Since SPC-6 does make it quite clear that USB Memory Stick device servers should not have the RMB bit set, Thomas, may I ask what udisks is using to automount USB sticks? Since USB sticks that follow SPC-6 clearly cannot have RMB bit set, which means that SCSI core will set removable: (the equivalent of:) /sys/devices/pci0000:00/0000:00:04.0/ata3/host2/target2:0:0/2:0:0:0/block/sda/removable to 0. Kind regards, Niklas
