04.05.2016 18:54, Duncan пишет: > Niccolò Belli posted on Wed, 04 May 2016 15:52:39 +0200 as excerpted: > >> Thanks, >> Now my fstab option are >> rw,noatime,compress=lzo,discard,autodefrag,subvolid=257,subvol=/@ >> I tried to add rootflags=noatime,compress=lzo,discard,autodefrag to >> GRUB_CMDLINE_LINUX in /etc/default/grub as you suggested but my system >> didn't manage to boot, probably because grub automatically adds >> rootflags=subvol=@ and only a single rootflags can be taken into >> account. >> Do you have any suggestion? > > What about the subvol=/@? > > I think if you specifically add your own rootflags, grub won't add its > own, and you said > It will, but it will prepend it to GRUB_CMDLINE_LINUX and last occurrence on kernel command line should win, so rootflags from GRUB_CMDLINE_LINUX should be used. > noatime,compress=lzo,discard,autodefrag > > but left off the subvol=/@ (unless you simply forgot to put it in the > posting), and without that, it would have mounted the btrfs default > subvolume, which would be (the filesystem's) / (subvolid=5) if you > haven't changed it, and would have failed to boot as a result. > But if I understand it correctly, GRUB already adds correct subvolume, and none of listed options should cause failure to boot. -- 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
