NAME¶

apptainer-overlay-create - Create EXT3 writable overlay image

SYNOPSIS¶

apptainer overlay create image

DESCRIPTION¶

The overlay create command allows creating EXT3 writable overlay image either
as a single EXT3 image or by adding it automatically to an existing SIF image.

OPTIONS¶

--create-dir=[] directory to create as part of the overlay layout

-f, --fakeroot[=false] make overlay layout usable by actions run with --fakeroot

-h, --help[=false] help for create

-s, --size=64 size of the EXT3 writable overlay in MiB

-S, --sparse[=false] create a sparse overlay

EXAMPLE¶

  To create and add a writable overlay to an existing SIF image:


  $ apptainer overlay create --size 1024 /tmp/image.sif


  To create a single EXT3 writable overlay image:


  $ apptainer overlay create --size 1024 /tmp/my_overlay.img


  To create a sparse overlay when creating a new ext3 file system image:


  $ apptainer overlay create --size 1024 --sparse /tmp/ext3_overlay.img


  To create an EXT3 writable overlay image for use with --fakeroot actions:


  $ apptainer overlay create --fakeroot --size 1024 /tmp/my_overlay.img

SEE ALSO¶

apptainer-overlay(1)

HISTORY¶

13-May-2024 Auto generated by spf13/cobra