<div dir="ltr"><br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">in case you loose it again, do<br>
<br>
dd if=boot.backup of=/dev/mmcblk0<br>
<br>
that's on your host! i don't know, if that works from fr, though.<br>
<div><div></div><div class="Wj3C7c"><br></div></div></blockquote><div><br>I can confirm this works for the bootsector corruption, but after seriously struggling with unreadable SDHC cards under Ubuntu _AND_ the FR I finally figured out some other pretty reliable workarounds for problems with memory cards:<br>
<br>Trying the debian install yesterday I noticed that both the original 512MB as well as a 1GB card were no longer working on the FR ( could write to them but then glamo-mci errors as in <a href="http://docs.openmoko.org/trac/ticket/1743">http://docs.openmoko.org/trac/ticket/1743</a> appeared and sometime after about 200MB all further communication seemed broken ) . In addition, partitioning seemed so messed up the cards were not recognized anymore by fdisk et al, so nothing but a panasonic windows card formatter could recover them. All of this happening without suspends on an upgraded 2007.8...<br>
<br>Whilst linux 2.6.26 on the host needed a fix to get the cards to show up again at all ( <a href="http://marc.info/?l=linux-usb&m=121734710306509&w=2">http://marc.info/?l=linux-usb&m=121734710306509&w=2</a> ), on the FR side the only thing that worked was playing with the glamo kernel parameters - I haven't reduced it to a minimal set of changes, but passing<br>
"glamo_mci.sd_drive=3 glamo_mci.sd_idleclk=1 sd_max_clk=5000000" on the u-boot cmdline resolved all issues so far.<br><br>I haven't filed a bugreport as interestingly enough I wasn't having any issues with the troublesome 4GB any more - maybe because I was using 2008.8 booted from the card itself?<br>
<br>I will try to reduce the parameters later, if anyone has further hints I'd be happy to try them out. Also, would the addition of dd'ed mbrs for the various cards in the Wiki be feasible ? <br><br>Stefan<br><br>
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