Dnia 09.05.2016 Jarosław Sokołowski <j...@l...waw.pl> napisał/a:
> sundayman ma taki pomysł (potrzebę znaczy):
>
>> w PC siedzi "normalny" HDD SATA. Na zewnątrz podłączony czasem
>
> Jeśli tym systemem na USB jest Linux, to można mu po prostu nie wkompilować
> w kernel obsługi SATA. Za cholerę nie zobaczy, choćby się skręcił. W drugą
> stronę jest jeszcze fajniej -- podsystem USB w jądrze da się tak ustawić,
> by chciał gadać wyłącznie z urządzeniami wpisanymi na listę (VID/UID).
>
Możesz dodać urządzenie do blacklisty. Wyłączyć USB poprzez parametr
kernela - nousb. W przypadku ATA, podobnież libata.force.

"[LIBATA] Force configurations. The format is comma
separated list of "[ID:]VAL" where ID is
PORT[.DEVICE]. PORT and DEVICE are decimal numbers
matching port, link or device. Basically, it matches
the ATA ID string printed on console by libata. If
the whole ID part is omitted, the last PORT and DEVICE
values are used. If ID hasn't been specified yet, the
configuration applies to all ports, links and devices.

If only DEVICE is omitted, the parameter applies to
the port and all links and devices behind it. DEVICE
number of 0 either selects the first device or the
first fan-out link behind PMP device. It does not
select the host link. DEVICE number of 15 selects the
host link and device attached to it.

The VAL specifies the configuration to force. As long
as there's no ambiguity shortcut notation is allowed.
For example, both 1.5 and 1.5G would work for 1.5Gbps.
The following configurations can be forced.

* Cable type: 40c, 80c, short40c, unk, ign or sata.
Any ID with matching PORT is used.

* SATA link speed limit: 1.5Gbps or 3.0Gbps.

* Transfer mode: pio[0-7], mwdma[0-4] and udma[0-7].
udma[/][16,25,33,44,66,100,133] notation is also
allowed.

* [no]ncq: Turn on or off NCQ.

* [no]ncqtrim: Turn off queued DSM TRIM.

* nohrst, nosrst, norst: suppress hard, soft
and both resets.

* rstonce: only attempt one reset during
hot-unplug link recovery

* dump_id: dump IDENTIFY data.

* atapi_dmadir: Enable ATAPI DMADIR bridge support

* disable: Disable this device.

If there are multiple matching configurations changing
the same attribute, the last one is used."