Salatiel Filho <[email protected]> writes:
> I am trying to connect to a 3TB nbd exported disk from a MIPS machine
> in to a debian ARM machine.
> When i try to connect i get 'Exported device is too big for me. Get
> 64-bit machine'.
> Is there a way to make this connection work ?
>
> []'s
> Salatiel
Looking at the code (nbd 3.0):
#ifdef NBD_SET_SIZE_BLOCKS
if ((size64>>12) > (uint64_t)~0UL) {
printf("size = %luMB", (unsigned long)(size64>>20));
err("Exported device is too big for me. Get 64-bit machine
:-(\n");
} else
printf("size = %luMB", (unsigned long)(size64>>20));
#else
if (size64 > (~0UL >> 1)) {
printf("size = %luKB", (unsigned long)(size64>>10));
err("Exported device is too big. Get 64-bit machine or newer
kernel :-(\n");
} else
printf("size = %lu", (unsigned long)(size64));
#endif
And NBD_SET_SIZE_BLOCKS is defined in nbd.h. This should allow devices
up to 2^32 pages or 16 TiB on 32bit machines. Maybe this is a recent
feature and your nbd client is too old?
Other than that you would have to introduce a new syscall to the kernel
that uses an off64_t instead of a long for the size.
MfG
Goswin
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