You can specify file system when converting OCI Image into overlaybd with --fstype options.
For example:
sudo bin/ctr obdconv --fstype "xfs" registry.hub.docker.com/library/redis:6.2.1 localhost:5000/redis:6.2.1_obd_xfsPush the generated overlaybd image to registry, then pull the uploaded image with rpull as described in EXAMPLES.
It's supported to use different options to mount/mkfs for specified file system.
Specify mount/mkfs options in --fstype option, for example, --fystype "fstype;mount_opt_1,mount_opt_2;mkfs_opt_1 mkfs_opt_2".
If only file system type is given, we use default mount/mkfs option to fulfill better performance.
- Default Mount/Mkfs Options
| FS Type | Mount Options | Mkfs Options |
|---|---|---|
| ext4 | discard | -O ^has_journal,sparse_super,flex_bg -G 1 -E discard |
| xfs | nouuid,discard | -f -l size=4m -m crc=0 |
| ntfs | - | -F -f |
- Override Default Options
It's valid to override default mount/mkfs options.
--fstype |
Description |
|---|---|
"fstype" |
use default mount/mkfs options |
"fstype;" |
invalid mount options, and use default mkfs options |
"fstype;;" |
invalid mount/mkfs options |
"fstype;;mkfs_opts" |
invalid mount options, and use specified mkfs options |
"fstype;mount_opts" |
use specified mount options, and use default mkfs options |
"fstype;mount_opts;" |
use specified mount options, and invalid mkfs options |
"fstype;mount_opts;mkfs_options" |
use specified mount/mkfs options |