On 4/9/2019 12:41 PM, Kai Lüke wrote:
> $ sudo ./sim loop0
> new size in /sys/block/loop0/loop0p1/size: 0
> issuing BLKRRPART
> new size in /sys/block/loop0/loop0p1/size: 2
> int resizepart(char *path, int start, int fd) {
> struct blkpg_partition part;
> struct blkpg_ioctl_arg ioctl_arg;
> memset(&part, 0, sizeof(part));
> part.start = start;
> part.length = 1;
I would suggest changing length to 2. This is what parted and partx do
and it seems to work there. Linux has always exposed 2 sectors through
the extended partition so you can have lilo install itself there. It
may be that the kernel thinks that is the minimum allowed size.
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