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Posts: 2,152 | Thanked: 1,490 times | Joined on Jan 2006 @ Czech Republic
USB storage exports card on block level. If you boot from some partition and mount it from PC over USB too, you have two ext2 filesystem drivers in two independent computers using same device. This is deadly since they will potentially overwrite each other's changes in filesystem structures. This is a big no no. Even just mounting it in read/write mode with no write done by you is dangerous. You should prevent linux system to mount it over usb. If needed, it can be mounted in read-only mode (mount -o ro ....) which may still get bad/old data sometimes but at least will not corrupt filesystem layout.
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Last edited by fanoush; 2008-03-10 at 08:20.