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btrfs-progs: device scan: update help text 

Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2019-03-01 14:22:44 +01:00
parent 02f096fb20
commit 16f0494b4b
1 changed files with 12 additions and 3 deletions
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15
cmds-device.c
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@ -277,9 +277,18 @@ static int btrfs_forget_devices(const char *path)
static const char * const cmd_device_scan_usage[] = {
"btrfs device scan [-d|--all-devices] <device> [<device>...]\n"
"btrfs device scan -u|--forget [<device>...]",
"Scan or forget (deregister) devices for a btrfs filesystem",
" -d|--all-devices (deprecated)",
" -u|--forget [<device> ..]",
"Scan or forget (unregister) devices of btrfs filesystems",
"Scan or forget (unregister) devices of btrfs filesystems. Multi-device",
"filesystems need to scan devices before mount. The blkid provides list",
"of devices in case no path is given. If blkid is no available, there's",
"a fallback to manual enumeration of device nodes.",
"",
"The reverse is done by the forget option, such devices must be unmounted.",
"No argument will unregister all devices that are not part of a mounted filesystem.",
"",
" -d|--all-devices enumerate and register all devices, use as a fallback",
" if blkid is not available",
" -u|--forget [<device>...] unregister a given device or all stale devices if no path ",
NULL
};