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Run ceph test cluster by creating a btrfs file system in a file in RAM
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| set -e | |
| cd /tmp | |
| dd if=/dev/zero of=ceph_fs bs=1024 count=3145728 # 3 GiB | |
| sudo losetup /dev/loop0 || sudo losetup /dev/loop0 ceph_fs | |
| sudo mkfs.btrfs -f /dev/loop0 | |
| cd /path/to/ceph/src/ | |
| sudo mount /dev/loop0 dev | |
| sudo mount /dev/loop0 run | |
| sudo chown -R $USER: dev run | |
| # ./vstart.sh -d -n -x |
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