Ludovic Courtès 写道: > As you can see, it’s attempting to make a RAID1 device out of > two > partitions (not two disks), which makes no sense in the real > world, but > is easier to handle here. So I wonder if this is what’s causing > it to > hang… It's just waiting for input: $ # dd & losetup magic, where loop0 is 20% larger than loop1 $ sudo mdadm --create /dev/md0 --verbose --level=mirror --raid-devices=2 /dev/loop{0,1} mdadm: Note: this array has metadata at the start and may not be suitable as a boot device. If you plan to store '/boot' on this device please ensure that your boot-loader understands md/v1.x metadata, or use --metadata=0.90 mdadm: size set to 101376K mdadm: largest drive (/dev/loop1) exceeds size (101376K) by more than 1% Continue creating array? Adding --force does not avoid this. I recommend tweaking the partition table to make both members equal, but a ‘yes|’ also works if you're in a hurry ;-) Kind regards, T G-R