On Sun, Feb 12, 2017 at 5:11 PM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: > On Fri, Feb 10, 2017 at 5:05 PM, John Hendy <jw.hendy@xxxxxxxxx> wrote: >> On Fri, Feb 10, 2017 at 5:49 PM, Hugo Mills <hugo@xxxxxxxxxxxxx> 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. > > As a relative noob, when a mailing list brings something to my attention I want to make sure I understand what's being said. I said in my very original post that /boot was ext4... but it was brought up that syslinux doesn't support multi-device and compression, so I wanted to know compression on *what*? >> >> 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"? I was just thinking aloud as an extension of the above. Since I specified compress=lzo in rootflags, on the / mount options in fstab, and I was able to get a successful boot with these options... presumably syslinux (*it*) supports that setup (namely: compression on btrfs root). John > > > -- > Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
