The filesystem is no longer internally compressed. The current size for the XO-1.5 system is 1.1 GB. 2 GB gives some headroom for growth and for temporary overages during updates.
Walter Bender wrote: > Why such a large system partition? > > -walter > > On Mon, Jul 27, 2009 at 6:17 PM, Mitch Bradley<w...@laptop.org> wrote: > >> This is a request for comments on a proposed disk layout for XO-1.5. >> >> XO-1.5 will have "managed NAND" instead of raw NAND, so we can use >> conventional filesystems instead of e.g. JFFS2. >> >> Proposal: >> >> The internal NAND storage will be partitioned with an FDISK partition >> map, into three partitions: >> >> /boot - 50 MB - FAT16 >> Contains olpc.fth, vmlinuz, initrd, and any other files that OFW >> needs to access during booting >> >> / - 2 GB - ext4 >> Contains system files >> >> /home - remainder of storage - ext4 >> Contains user files >> >> Dual-boot systems might have additional partitions for Windows. That >> will probably require storage devices > 4GB. >> >> The partitions will be aligned to at least 1 MiB boundaries, ensuring >> that they do not split internal NAND erase blocks. >> >> The choice of FAT for /boot makes it usable for both Linux and Windows. >> The choice of FAT16 avoids any possible patent issues surrounding >> FAT32. FAT16 works fine for 50 MB partitions, using a 1K cluster size. >> With larger cluster sizes, there are several factors of two of headroom >> - and large clusters are not a problem for /boot, which tends to contain >> mostly large files. >> >> >> >> _______________________________________________ >> Devel mailing list >> Devel@lists.laptop.org >> http://lists.laptop.org/listinfo/devel >> >> > > > > _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel