Re: creating FFS2 file-system with makefs on linux

[christos%astron.com@localhost (Christos Zoulas)]

In article <cb7095fa-3ae9-76a7-0a86-5337b0ff9edc%nethence.com@localhost>,
Pierre-Philipp Braun  <pbraun%nethence.com@localhost> wrote:
>Hello.  I would like to create netbsd XEN/PV domU guests from gnu/linux
>dom0s therefore create FFS2 file-systems from there.  First, I tried
>adding `newfs` to tools/Makefile but I realized it's not possible (many
>header files to add and probably lots of porting required).  So I tried
>with `makefs` instead, and it seems we're good!  The following command
>did work and the guest is up and running already.
>
>/var/tmp/usr/tools/bin/nbmakefs -t ffs -o v=2,o=time -s 2g slime9.ffs2 tree/
>
>However when I increase the size of the image, it fails at higher
>volumes 3GB, 4GB, 5GB e.g.
>
>/var/tmp/usr/tools/bin/nbmakefs -t ffs -o v=2,o=time -s 5g slime9.ffs2 tree/
>
>Calculated size of `slime9.ffs2': 5368709120 bytes, 21246 inodes
>Extent size set to 8192
>slime9.ffs2: 5120.0MB (10485760 sectors) block size 8192, fragment size 1024
>        using 93 cylinder groups of 55.19MB, 7064 blks, 256 inodes.
>super-block backups (for fsck -b #) at:
>       32,   113056,   226080,   339104,   452128,   565152,   678176,
>   791200,   904224,  1017248,  1130272,  1243296,  1356320,  1469344,
>  1582368,  1695392,  1808416,  1921440,  2034464,  2147488,  2260512,
>  2373536,  2486560,  2599584,  2712608,  2825632,  2938656,  3051680,
>  3164704,  3277728,  3390752,  3503776,  3616800,  3729824,  3842848,
>  3955872,  4068896,  4181920,nbmakefs: ffs_wtfs: seek error for sector
>4294944: Invalid argument
>
>Any thoughts?

Perhaps we are not building the tools with:

-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64

So it can't handle more than 2G?

christos