README
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embiggen-disk
The embiggen-disk tool live-resizes a filesystem after first live-resizing any necessary layers below it: an optional LVM LV and PV, and an MBR or GPT partition table.
Example
# embiggen-disk /
Changes made:
* partition /dev/sda3: before: 8442546176 sectors, after: 8444643328 sectors
* LVM PV /dev/sda3: before: sectors=8442544128, after: sectors=8444641280
* LVM LV /dev/mapper/debvg-root: before: sectors=8442544128, after: sectors=8444641280
* ext4 filesystem at /: before: 1038833256 blocks, after: 1039091312 blocks
Then again:
# embiggen-disk /
No changes made.
Installing
$ go get github.com/google/embiggen-disk
Requirements
- Go 1.7+
- Linux 3.6+ (for BLKPG_RESIZE_PARTITION)
It's only been tested on 64-bit x86 Linux ("amd64"). It should work on other Linux architectures.
Disclaimer
This is not an officially supported Google product.
Audit the code and/or snapshot your disk before use if you're worried about losing data.
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
View Source
var ( Dry bool Verbose bool )
Functions ¶
Types ¶
type Resizer ¶
type Resizer interface {
String() string // "ext4 filesystem at /", "LVM PV foo"
State() (string, error) // "534 blocks"
Resize() error // both may be non-zero
DepResizer() (dep Resizer, err error) // can return (nil, nil) for none
}
An Resizer is anything that can enlarge something and describe its state. An Resizer can depend on another Resizer to run first.
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