On Tue, Mar 08, 2011, Shawn Guo wrote:
> Have a look at the /dev/sdb change in device report before and after
> the command you suggest ...
Interesting :-)
But the linaro-media-create "size" output is probably broken for the
same reason: sdb appears to be unavailable for some time after changing
the partition table:
> Are you 100% sure, on selecting [/dev/sdb] (y/n)? n
> r65073@S2101-09:~/image/linaro$ sudo parted -s /dev/sdb mklabel msdos && sudo
> sfdisk -L /dev/sdb
> /dev/sdb: No medium found
>
> sfdisk: cannot open /dev/sdb read-write
That's pretty convincing to me; anything relevant in dmesg?
We could do something like the attached shell script; would you mind
running it to confirm this works without removing/reinserting the MMC?
I'm curious to see how much time your drive needs to come back.
--
Loïc Minier
#!/bin/sh
set -e
sudo="sudo"
if [ $(id -u) -eq 0 ]; then
sudo=""
fi
usage() {
echo "Usage: $0 <block-device>" >&2
exit 1
}
if [ $# -ne 1 ]; then
usage
fi
dev="$1"
if [ ! -b "$dev" ]; then
usage
fi
set -x
$sudo parted -s "$dev" mklabel msdos
#sync?
nap_time=0
while :; do
if $sudo sfdisk -L "$dev" >/dev/null 2>&1; then
break
fi
if [ $nap_time -ge 30 ]; then
echo "Giving up after $nap_time seconds failing to list partitions" >&2
exit 1
fi
sleep 1
nap_time=$(($nap_time + 1))
done
echo "Could list partitions after $nap_time seconds!" >&2
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