Needed a sleep 1 before mkfs.ext4

[evertheylen]

Hello, I don't have the time to really look into this in depth, but I still thought it was useful to let someone know. I was trying to make qcow2 images, with ext4, and it kept giving me this error:

mkfs.ext4: Device size reported to be zero.  Invalid partition specified, or
        partition table wasn't reread after running fdisk, due to
        a modified partition being busy and in use.  You may need to reboot
        to re-read your partition table.

I tried out the commands manually and it worked fine. Assuming it was a timing issue of some sort, I added a sleep 1 before the mkfs line here:

alpine-make-vm-image/alpine-make-vm-image

Line 557 in 04c2e6d

mkfs.$ROOTFS -L root $mkfs_args "$root_dev"

And that fixed it. I've only had this problem recently, last time I ran it (maybe 4 months ago or more), it worked fine. Currently running QEMU 9.0.1, e2fsprogs 1.47.1-4, kernel 6.9.7-arch1-1.