[Sugar-devel] Building a customized image of Sugar .100
quozl at laptop.org
Sun Aug 10 20:31:16 EDT 2014
On Sun, Aug 10, 2014 at 12:24:38PM -0300, Gustavo Duarte wrote:
> fiemap ioctl() failed
> zhashfs: zhashfs.c:156: read_extents: Assertion `(fiemap != ((void *)0))'
The FIEMAP feature is not supported on your NFS. It isn't clear that
it will remain unsupported; there seems ample mention of the
combination in a quick Google.
When I built the sparse .zd feature I used a pattern fill of unused
blocks to recognise them , but when Daniel Drake merged this he
used FIEMAP .
To avoid the problem, you may either:
- use eMMC or SD card,
- use USB FLASH or hard drive,
- use the network block device (nbd-server, nbd-client), or;
- use the loopback block device (losetup) over NFS.
You can also use a version of bin/zhashfs.c before the change, but you
will also have to change how the empty image is created.
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