Am 03.01.2014 23:56, schrieb Jim Salter: > I actually read the wiki pretty obsessively before blasting the list - > could not successfully find anything answering the question, by scanning > the FAQ or by Googling. > > You're right - mount -t btrfs -o degraded /dev/vdb /test worked fine. don't forget to btrfs device delete missing <path> See https://btrfs.wiki.kernel.org/index.php/Using_Btrfs_with_Multiple_Devices > > HOWEVER - this won't allow a root filesystem to mount. How do you deal > with this if you'd set up a btrfs-raid1 or btrfs-raid10 as your root > filesystem? Few things are scarier than seeing the "cannot find init" > message in GRUB and being faced with a BusyBox prompt... which is > actually how I initially got my scare; I was trying to do a walkthrough > for setting up a raid1 / for an article in a major online magazine and > it wouldn't boot at all after removing a device; I backed off and tested > with a non root filesystem before hitting the list. Add -o degraded to the boot-options in GRUB.
If your filesystem is more heavily corrupted then you either need the btrfs tools in your initrd or a rescue cd > > I did find the -o degraded argument in the wiki now that you mentioned > it - but it's not prominent enough if you ask me. =) > > [snip] Joshua -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
