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While working on some HAL issues I hit some not clear - to me at least -
behavior. I was testing HAL Eject method that under Linux effectively
calls 'eject /dev/block'. Now for USB stick - at least, that I have, this
results in "ejecting medium" without apparently any way to get it back (the
only way is to replug stick).
UEVENT[1152175788.114199] remove@/block/sda/sda1
ACTION=remove
DEVPATH=/block/sda/sda1
SUBSYSTEM=block
SEQNUM=1332
MINOR=1
MAJOR=8
PHYSDEVPATH=/devices/pci0000:00/0000:00:02.0/usb1/1-1/1-1:1.0/host1/target1:0:0/1:0:0:0
PHYSDEVBUS=scsi
PHYSDEVDRIVER=sd
In this state I do see device:
{pts/0}% sudo sdparm -a /dev/sda
/dev/sda: 128MB 2.00
{pts/0}% cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: Model: 128MB Rev: 2.00
Type: Direct-Access ANSI SCSI revision: 02
but any attempt to get partition back results in
{pts/0}% LC_ALL=C sudo blockdev --rereadpt /dev/sda
/dev/sda: No medium found
I tried 'sdparm -C start' without much success as well:
{pts/0}% LC_ALL=C sudo sdparm -v -C start /dev/sda
/dev/sda: 128MB 2.00
Start stop unit command: 1b 00 00 00 01 00
{pts/0}% LC_ALL=C sudo blockdev --rereadpt /dev/sda
/dev/sda: No medium found
Well, I just try to understand if this is a expected (and reasonable)
behaviour or a bug in hardware or possibly software?
Thank you
- -andrey
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