On Tue, Feb 18, 2020 at 04:15:36PM +0200, Nikolay Ivanets wrote: > > I think it's a difficult problem and one which won't be solved using > > du. For comparison we have some nbdkit plugins for creating > > filesystems and they are far more sophisticated, especially this one: > > https://github.com/libguestfs/nbdkit/tree/master/plugins/floppy > > > > I would note that the reason the test fails was nothing to do with > > free space. It was actually running out of inodes. With ext2/3/4 the > > number of inodes in the metadata is fixed at creation and based on the > > size of the disk (see /etc/mke2fs.conf inode_ratio and the mke2fs -i > > and -N options). Because of the small size of the disk, mke2fs was > > choosing < 100 inodes, but because the test had 100+ files it failed > > when creating the later files even though there was enough disk space. > > There's no easy way to fix this. I think it could even be considered > > as a bug in mke2fs. > > > > Rich. > > I've did extra testing and the issue really appears for small file systems > composed from 100 x 10-bytes files or so because of lack of free inodes. > Nevertheless we cannot swear that virt-make-fs will work for any possible > file systems or set of files.--size=+N is for the rescue in such cases. > > Your patch made things worse because of sparse files. > I think we cannot apply it.
Sure, I've dropped it, it doesn't address the actual problem. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org _______________________________________________ Libguestfs mailing list [email protected] https://www.redhat.com/mailman/listinfo/libguestfs
