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Expand file tree Collapse file tree Original file line number Diff line number Diff line change @@ -24,10 +24,6 @@ The following configuration flags are supported:
2424 default location for ` containerd ` plugins will be used)
2525* ` pool_name ` - a name to use for the devicemapper thin pool. Pool name
2626 should be the same as in ` /dev/mapper/ ` directory
27- * ` data_device ` - path to the data volume that should be used by the thin pool
28- * ` meta_device ` - path to the metadata volume that should be used by the thin-pool
29- * ` data_block_size ` - the size of allocation chunks in data file, between 128
30- sectors (64KB) and and 2097152 sectors (1GB) and a multiple of 128 sectors (64KB)
3127* ` base_image_size ` - defines how much space to allocate when creating the base device
3228
3329Pool name and base image size are required snapshotter parameters.
@@ -42,5 +38,5 @@ ctr run --snapshotter devmapper docker.io/library/hello-world:latest test
4238
4339## Requirements
4440
45- The devicemapper snapshotter requires ` dmsetup ` command line tool to be installed and available on your computer.
46- On Ubuntu, it can be installed with ` apt-get install dmsetup ` command.
41+ The devicemapper snapshotter requires ` dmsetup ` (>= 1.02.110) command line tool to be installed and
42+ available on your computer. On Ubuntu, it can be installed with ` apt-get install dmsetup ` command.
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