Just one more thing. For btrfs and other file systems, it is customary to have a separate boot partition, so that at a minimum, you have 3 partitions - /boot, Swap, and /. Would that be a problem for nilfs2? If it is ok to have a separate boot partition, does it make sense to use nilfs2 on it? Or is it better to use a non-journaling file system, like Linux Native (ext2) on the boot partition, and nilfs2 on /. Thanks for your time. -- Fini D. > > Thanks a bundle. That pretty much addresses all I/we need to know about > disk partitioning per nilfs2. > > > -- > Fini D. > > >> On Wed, 6 Jul 2011 06:29:53 -0600, "LinuxBSDos.com" wrote: >>> >>> Thank you. >>> >>> With regards to /home, will there be a negative impact on the way >>> nilfs2 >>> works if /home is on a separate partition? >> >> Usually this is a good usage. >> >> Possible demerits are: >> >> * We have to mount and access snapshots separately per partition. >> >> * Checkpoint numbers increase differently if we use two or more nilfs >> partitions. This makes it a bit troublesome to choose consistent >> snapshots for multiple nilfs2 partitions. >> >> * User needs to specify a device argument for lscp and other snapshot >> commands for multiple nilfs2 partitions. >> >> The current nilfs utilities does not provide the way to specify a >> target partition with a directory argument. >> >> * GC daemons run and reside for each nilfs2 partition, and this may >> require more memory and cpu time. Usually this is not an issue >> because GC daemons will sleep while having enough free space. >> >> >> As long as applying nilfs2 only to /home, I think there is no >> mentionable demerit except the system is not protected with the >> automatic checkpoints/snapshots. >> >> >>> On Ubuntu and nilfs2, Ubuntu's installer does not have nilfs2 as a file >>> system option, how did you install Natty N. on nilfs2? >> >> I cannot remember how I built the current natty environment, but >> usually I do that manually with debootstrap program. The following is >> a copy of my memorandum showing a rough scheme: >> >> 1) Make a bootable usb pendrive. >> >> 2) Install nilfs-utils and debootstrap in it. >> >> 3) Boot from the usb memory and format the main drive with nilfs2: >> >> # mkfs -t nilfs2 /dev/sda8 >> >> 4) Mount it and run debootstrap. >> >> # mount -t nilfs2 /dev/sda8 /nilfs >> # debootstrap --arch amd64 natty /nilfs/ >> http://xxx.xxx.xx.xx/xxxxx/ubuntu/ >> >> 5) Edit /nilfs/etc/fstab. >> >> 6) Edit or copy /etc/hosts. >> >> 7) Copy /home as needed. >> >> # rsync -ax /home/ /nilfs/home/ >> >> 8) Do chroot >> >> # chroot /nilfs /bin/bash >> # mount -t proc none /proc >> # mount -t sysfs none /sys >> # mount /dev/sda8 /boot (if using a separate boot partition) >> >> 9) Set root password >> >> # passwd >> >> 10) Make an acount >> >> # groupadd -g 1000 <my-user-name> >> # useradd -g <my-user-name> -u 1000 -c "My Name" -s /bin/bash >> <my-user-name> >> # passwd <my-user-name> >> >> 11) Edit /nilfs/etc/apt/sources.list >> >> 12) Set timezone >> >> # dpkg-reconfigure tzdata >> >> 13) Install packages >> >> # apt-get update >> # apt-get install rsync ssh openssh-server sudo gcc make git-core >> automake autoconf aptitude ... >> >> 14) Build and install nilfs-utils >> >> 15) Manually build and install util-linux-ng which supports nilfs2. >> This is required to mount nilfs2 partitions by a UUID or a LABEL. >> >> 16) Install and setup grub2, and run update-grub program >> >> 17) Reboot >> >> 18) Install desktop environment >> >> >> I think this needs trial and error for natty since this memorandum was >> originally made for Debian. >> >> >> Regards, >> Ryusuke Konishi >> >>> I know these are not dev-related questions, but I'm planning on writing >>> several nilfs2-related tutorials, and need to know exactly how a disk >>> should be partitioned for it. >>> >>> Thanks, >>> >>> >>> -- >>> Fini D. >>> >>> >>> >>> > Hi, >>> > On Mon, 4 Jul 2011 13:28:39 -0600, "LinuxBSDos.com" wrote: >>> >> >>> >> Hi, >>> >> >>> >> A couple of Linux distributions now have nilfs2 as an optional file >>> >> system >>> >> during installation and I just want to find out what the minimum >>> number >>> >> of >>> >> partitions required for a nilfs2-based installation is. >>> >> >>> >> Is it necessary to create separate partitions for the major file >>> >> systems, >>> >> or does nilfs2 require just one root file system directory? Is /home >>> on >>> >> a >>> >> separate partition necessary? >>> > >>> > nilfs2 can be used as a root filesystem and it is bootable from >>> recent >>> > grub2. I'm using nilfs2 for the root filesystem on my ubuntu-natty >>> > laptop. >>> > >>> > One restriction is that nilfs2 does not support swap file, so users >>> > need at least two partitions, swap and root. >>> > >>> > /home is not necessary to be a separate partition. >>> > >>> >> Lastly, can I encrypt a nilfs2 partition? >>> > >>> > nilfs2 itself does not support encryption. Instead, it can be used >>> > together with ecryptfs or dm-crypt. >>> > >>> > Thanks, >>> > Ryusuke Konishi >>> > >>> >> Thanks, >>> >> >>> >> -- >>> >> Fini D. >>> >> >>> >> -- >>> >> To unsubscribe from this list: send the line "unsubscribe >>> linux-nilfs" >>> >> in >>> >> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> >> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> > -- >>> > To unsubscribe from this list: send the line "unsubscribe >>> linux-nilfs" >>> in >>> > the body of a message to majordomo@xxxxxxxxxxxxxxx >>> > More majordomo info at http://vger.kernel.org/majordomo-info.html >>> > >>> >>> >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" >>> in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-nilfs" >> in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
