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https://github.com/kdave/btrfs-progs
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The meaning of the -b/--byte-count option is different than what the
help text says. Historically it was used to set the filesystem size but
with multiple devices it sets the size on each device:
$ mkfs.btrfs /dev/sdx[1234]
...
Number of devices: 4
Devices:
ID SIZE PATH
1 2.00GiB /dev/sdx1
2 2.00GiB /dev/sdx2
3 2.00GiB /dev/sdx3
4 2.00GiB /dev/sdx4
And when set to 1G:
$ mkfs.btrfs -b 1G /dev/sdx[1234]
...
Number of devices: 4
Devices:
ID SIZE PATH
1 1.00GiB /dev/sdx1
2 1.00GiB /dev/sdx2
3 1.00GiB /dev/sdx3
4 1.00GiB /dev/sdx4
Signed-off-by: David Sterba <dsterba@suse.com>
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| .. | ||
| common.c | ||
| common.h | ||
| main.c | ||
| Makefile | ||
| rootdir.c | ||
| rootdir.h | ||