On Fri, Feb 10, 2017 at 5:05 PM, John Hendy <jw.he...@gmail.com> wrote:
> On Fri, Feb 10, 2017 at 5:49 PM, Hugo Mills <h...@carfax.org.uk> wrote:
>> On Fri, Feb 10, 2017 at 11:40:41AM -0600, John Hendy wrote:
>>> Greetings,
>
>
>>    Just as an aside -- it doesn't affect you here, but you might want
>> to be aware -- syslinux doesn't support multi-device btrfs. I've been
>> bitten by that before, and it's a consideration for you should you
>> wish to add another device to this FS. Also, I haven't tried it, but I
>> suspect that it may not support compression in btrfs either.
>
> Aside appreciated! I don't plan to add a second device, so that's alright.

Nonfactor in your case because your boot volume is ext4 not Btrfs, so
none of the Btrfs limitations apply to the bootloader.


>
> I've run into the statement on compression as well... does this mean
> the device it's *on* or the device I want to mount as root?

rootflags applies mount options to the root filesystem only.

>
> I have to assume the former, and ran across this in my preparation,
> which is why I used ext4. Given that I've been able to specify
> rootflags=compress=lzo in my APPEND line, this is also in /etc/fstab
> and it booted... I'm using this as evidence that it must support
> compression on a root btrfs device? Any reason to think otherwise?

I don't understand the question. What is "it" when you ask "it must support"?


-- 
Chris Murphy
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