Re: SDXC card compatibility with Debian Lenny and beyond --UPDATE
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Ken Heard wrote:
> I expect to buy next Tuesday a Canon 60D body which can use SD, SDHC and
> SDXC recording media. SDXC cards are considerably more expensive than
> the other two, in part I suppose because they use the Microsoft exFAT
> file system; so royalties must be paid.
>
> Besides the cost, I am concerned whether SDXC cards can be read by Lenny
> and successors on my PC and Lenovo laptop. Apparently a special driver
> is needed to do so.
>
> In view of the foregoing I wonder whether I am better using the SDHC
> cards instead, because their unit cost ($ per mB) are lower than the
> SDXC unit cost, and because they do not use a proprietary file system
> still with patent protection.
>
> Has anyone had any experience with SDHC and SDXC cards in digital
> cameras to share?
I can now share my own experience using 32 gb SDHC cards in my new Canon
60D body.
My Lenovo R61 ThinkPad has a built-in SD card slot. The operating
system is Lenny with KDE. The file name for this slot is
/dev/mmcblk0p1. In Konqueror it opens as system:/media/mmcblk0p1. In
/etc/fstab I specified /media/sd as the mount point for /dev/mmcblk0p1.
In Konqueror and a terminal I can open, copy and delete the RAW and jpg
files on these cards. There is however a problem with the dates, which
will be the subject of another thread.
For my desktop, Intel dual-core also with Lenny and KDE, the story is
different. If I connect the card through a card reader to a USB port
both in Konqueror and a terminal, I cannot read the SDHC cards but can
read "ordinary" SD cards.
I can however read SDHC cards with the card still in the camera and
connected to the desktop by the USB cable shipped with the camera.
copying the files is very slow, but then a jpg file with this camera
averages some 6 mb; the raw files are at least twice that.
It remains to be seen what I will find with Squeeze in both computers
after I upgrade.
Regards, Ken Heard
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