Hi,
I'm using:
Kernel 4.2.6
btrfs-progs v4.3
Debian Wheezy
I have a RAID1 root filesystem with two devices. When the system
initially boots up, "btrfs fi show" will show the same device twice:
Label: none uuid: 49f7413a-99ad-41b0-8783-06c9406e2280
Total devices 2 FS bytes used 1.19GiB
devid 1 size 7.60GiB used 3.03GiB path /dev/sdf2
devid 2 size 7.60GiB used 3.01GiB path /dev/sdf2
The filesystem seems to work fine (as best as I can tell) in this state.
If I then run another "btrfs device scan", it will correct itself:
Label: none uuid: 49f7413a-99ad-41b0-8783-06c9406e2280
Total devices 2 FS bytes used 1.19GiB
devid 1 size 7.60GiB used 3.03GiB path /dev/sde2
devid 2 size 7.60GiB used 3.01GiB path /dev/sdf2
Any idea what might be going on here? On Debian it appears that the
initial "btrfs device scan" is being done by an initramfs local-premount
script where it does:
modprobe btrfs
/bin/btrfs device scan 2>/dev/null
Does there perhaps need to be some delay between inserting the kernel
module and running a scan?
Thanks,
Scott
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