cloud-init-dev team mailing list archive
-
cloud-init-dev team
-
Mailing list archive
-
Message #01219
Re: [Merge] ~paul-meyer/cloud-init:fix-raw-ephemeral-disk into cloud-init:master
Actually, the example above was bogus, because i didn't udevadm settle after sfdisk would have called rereadpt. However, this one shows the problem:
sudo sh -c 'dev=/dev/vdb;
while :; do
dd if=/dev/null of=$dev bs=1 count=0 &&
blockdev --rereadpt $dev || break;
udevadm settle; done'
There, we open /dev/vdb for RW via 'dd', close it, and then call blockdev --rereadpt.
After calling blockdev --rereadpt we do 'udevadm settle' so that any events that blockdev's reread are fully processed. Then, we do it all again (and again).
Eventually you'll see blockdev complain:
blockdev: ioctl error on BLKRRPART: Device or resource busy
--
https://code.launchpad.net/~paul-meyer/cloud-init/+git/cloud-init/+merge/304033
Your team cloud init development team is requested to review the proposed merge of ~paul-meyer/cloud-init:fix-raw-ephemeral-disk into cloud-init:master.
References