workstation mount of jffs2 and endianess

workstation mount of jffs2 and endianess

[Robin Gilks]

Greetings

Is it possible to mount a bigendian jffs2 filesystem image (via blkmtd 
or whatever) on a little endian host system (i.e. a PC workstation)?

If so, where do I tell the system what the endianess is? At present I 
get errors during mount (which if the endianess is not known I'd expect) 
of the form:
losetup /dev/loop3 /home/gilksr/jffs2.fs
insmod blkmtd erasesz=64 device=/dev/loop3
mount -t jffs2 /dev/mtdblock/0 /mnt/root_fs
mount: wrong fs type, bad option, bad superblock on /dev/loop3,
        or too many mounted file systems

I've checked that I can create and loop mount a l-e filesystem but the 
target I'm working with is a powerpc that I want to keep as natively b-e.


-- 
Robin Gilks
Senior Design Engineer          Phone: (+64)(3) 357 1569
Tait Electronics                Fax  :  (+64)(3) 359 4632
PO Box 1645 Christchurch        Email : robin.gilks@tait.co.nz
New Zealand

Re: workstation mount of jffs2 and endianess

[David Woodhouse]

On Tue, 2004-02-03 at 11:20 +1300, Robin Gilks wrote:
> Is it possible to mount a bigendian jffs2 filesystem image (via blkmtd 
> or whatever) on a little endian host system (i.e. a PC workstation)?

Yes. #define JFFS2_BIG_ENDIAN in include/linux/jffs2.h

-- 
dwmw2