Mount root from SD card?
Krassimir Slavchev
krassi at bulinfo.net
Mon Jan 19 23:59:29 PST 2009
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M. Warner Losh wrote:
...
> mmcsd0: 1983MB <SD Memory Card> at mmc0 30MHz/1bit
> Trying to mount root from ufs:/dev/mmcsd0s1
>
> Manual root filesystem specification:
> <fstype>:<device> Mount <device> using filesystem <fstype>
> eg. ufs:/dev/da0a
> ? List valid disk boot devices
> <empty line> Abort manual input
>
> mountroot> ?
>
> List of GEOM managed disk devices:
> mmcsd0
>
>> Looks like that should be working.
>
>> mav@ has done a lot of hacking on the mmc code...
>
>> Do you have 1 wire or 4 wires for your mmc bus on your board?
On the board all 4 bus wires are connected (MCD A0-A3) but I've never
seen working 4-bit mode on AT91RM9200 (See PR128987 too).
Best regards
>
>> Warner
>
> With last known working kernel:
> ...
> FreeBSD 8.0-CURRENT #32: Thu Nov 8 17:22:00 EET 2007
> ...
> SD CARD: 2079326208 bytes
> mmcsd0: <mmc or sd flash card> on mmc0
> mmc0: setting transfer rate to 30.000MHz
> Trying to mount root from ufs:/dev/mmcsd0s1
> warning: Low voltage. The time may be corrupted!
> Dec 4 06:42:27 init: getting pseudoterminals resource limit: Invalid
> argument
> pid 25 (sh), uid 0: exited on signal 11
> ...
>
>
> Best regards
>
>
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