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Merge pull request #7431 from tamsky/fixes-7105 

add warning re: changing value of `dm.basesize`.
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Michael Crosby 2014-08-06 15:22:42 -07:00
parent 8733cd7c0b bd30746e07
commit e86d87e1ce
1 changed files with 5 additions and 1 deletions
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6
daemon/graphdriver/devmapper/README.md
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@ -43,7 +43,11 @@ Here is the list of supported options:
10G. Note, thin devices are inherently "sparse", so a 10G device
which is mostly empty doesn't use 10 GB of space on the
pool. However, the filesystem will use more space for the empty
case the larger the device is.
case the larger the device is. **Warning**: This value affects the
system-wide "base" empty filesystem that may already be
initialized and inherited by pulled images. Typically, a change
to this value will require additional steps to take effect: 1)
stop `docker -d`, 2) `rm -rf /var/lib/docker`, 3) start `docker -d`.
Example use: