On Tue, Oct 15, 2013 at 01:33:19PM -0700, Christoph Hellwig wrote: > Hi Paulo, > > just wondering what the state of the xfs support for syslinux is? I > talked to Peter at Linuxcon and he thought it's merged, but looking at > the kernel.org tree I can't find the support. > > Also when looking over your branches I noticed that you're using a free > sector in the first filesystem block to store the bootloader. If we > want to go down that route we need to make sure to reserve this sector, > otherwise it might get taken up by newly added metadata. It's also worth pointing out that there's no guarantee that there's a free sector in the first filesystem block. It's only by luck that there's free sectors on the default config (512 byte sector, 4 sector sized AG headers, 4k filesystem block). If we have <= 2k filesystem block there are no free "pad" sectors that can be used, 4k sectors mean no free sectors either, etc. Much better would be to create a sector sized file and use fiemap to get the disk address of the block and feed that into the bootloader. That works for all filesystems without needing to know anything about the underlying filesystem structures...... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
