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On Fri, Jul 31, 2015 at 11:50 AM, James <wireless@×××××××××××.com> wrote: |
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> |
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> As many know, I have made many failed attempts to get btrfs in raid 1 working |
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> on gentoo, and have to this date, failed. |
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> |
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Interesting. I've never had any problems with it. I boot using |
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grub2+dracut with root on a single-device btrfs, and /usr on a |
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multi-device raid1 btrfs (and dracut mounts both). |
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|
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As long as you pass a valid root= dracut should just find and mount |
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all the devices for your root. Note that it will attempt to read |
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/etc/fstab and remount your root using whatever is in that, so make |
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sure it is valid. |
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|
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Some relevant config: |
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from grub.cfg: |
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linux /root1/boot/vmlinuz-3.18.19 |
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root=UUID=7d9f3772-a39c-408b-9be0-5fa26eec8342 ro |
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rootflags=subvol=root1 init=/usr/lib/systemd/systemd |
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video=1920x1080-32@60 crashkernel=64M net.ifnames=0 |
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libahci.ignore_sss=1 |
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initrd /root1/boot/initramfs-3.18.19.img |
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|
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from fstab: |
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/dev/disk/by-uuid/7d9f3772-a39c-408b-9be0-5fa26eec8342 / |
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btrfs noatime,ssd,nodiscard,compress=none 0 0 |
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/dev/disk/by-uuid/cd074207-9bc3-402d-bee8-6a8c77d56959 /data |
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btrfs noatime,compress=none 0 0 |
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|
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Compression is transparent - the mount option only affects future |
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writes to the device, and you don't need anything to correctly mount |
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the drive. |
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|
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-- |
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Rich |
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