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| author | Richard W.M. Jones <rjones@redhat.com> | 2012-04-18 10:50:32 +0100 |
|---|---|---|
| committer | Richard W.M. Jones <rjones@redhat.com> | 2012-04-18 10:51:04 +0100 |
| commit | b0b5fdc69f6ee831f325760f95a164627b499f77 (patch) | |
| tree | 0268ef34a02fafdf17721662cae062e17eb47f9b /sparsify | |
| parent | 4542401fee7a141204baea98dcdc9fa557878f85 (diff) | |
| download | libguestfs-b0b5fdc69f6ee831f325760f95a164627b499f77.tar.gz libguestfs-b0b5fdc69f6ee831f325760f95a164627b499f77.tar.xz libguestfs-b0b5fdc69f6ee831f325760f95a164627b499f77.zip | |
sparsify: Add a note about sparsify on tmpfs.
Diffstat (limited to 'sparsify')
| -rw-r--r-- | sparsify/virt-sparsify.pod | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sparsify/virt-sparsify.pod b/sparsify/virt-sparsify.pod index 275faf5a..14f7eecb 100644 --- a/sparsify/virt-sparsify.pod +++ b/sparsify/virt-sparsify.pod @@ -271,6 +271,14 @@ to point to another directory that has enough space. This defaults to C</tmp>. +Note that if C<$TMPDIR> is a tmpfs (eg. if C</tmp> is on tmpfs, or if +you use C<TMPDIR=/dev/shm>), tmpfs defaults to a maximum size of +I<half> of physical RAM. If virt-sparsify exceeds this, it will hang. +The solution is either to use a real disk, or to increase the maximum +size of the tmpfs mountpoint, eg: + + mount -o remount,size=10G /tmp + =back For other environment variables, see L<guestfs(3)/ENVIRONMENT VARIABLES>. |