On Wed, Sep 9, 2009 at 1:22 PM, Giuseppe Iuculano <[email protected]> wrote: > > Could you explain me why it expose partitions on fakeraid members and risk > desyncing of the RAID arrays please?
If you boot from a live CD, or whatever (temporary or fix) boot disk that is not in your dmraid array, dmraid-activate will check that the dmraid array is not on root, and not hide the partitions on the raw devices. Therefore you will have these partitions existing as for instance /dev/sda1 /dev/sdb1. Your file browser will display them as mountable disks, and happily mount for instance /dev/sda1 (but maybe displaying a nice disk label instead of the device name). Now change something on this partition (actually the mounting itself, with replay of journal and updating mount count and time, is enough) and your raid has been desync'ed. Also, if your live CD has casper, it will search through all exposed devices in search of the livefs, and mount /dev/sda1 to look for the livefs. For a demonstration, just boot a live CD with dmraid included (Ubuntu karmic will do), and you'll see all these devices under "Computer". -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
