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
