Especifique a opção como
-Re
Se você comandar fsck_hfs sem opção, a lista de opções apresentadas em 'usage' poderá ser menor que as opções realmente aceitas. Isto é, creio eu, documentação erro.
Atualização - 2011-07-30
Se a opção -R não for reconhecida por fsck_hfs no Mac OS X 10.6.3, suponha que ela tenha sido introduzida em uma versão posterior de 10.6.x - para a página de manual referenciada no post de abertura, entre 10.5 e 10.6.6 não há nada.
Snow Leopard na Apple Store (UK) permanece em 10.6.3 Portanto, se você precisar de mídia inicializável com a versão mais capaz de fsck_hfs, eu recomendaria o seguinte:
Para referência, aqui está uma transcrição da 10.7 (Build 11A511):
[macbookpro08-centrim:~] gjp22% date
Sat 30 Jul 2011 08:25:39 BST
[macbookpro08-centrim:~] gjp22% uname -a
Darwin macbookpro08-centrim.home 11.0.0 Darwin Kernel Version 11.0.0: Sat Jun 18 12:56:35 PDT 2011; root:xnu-1699.22.73~1/RELEASE_X86_64 x86_64
[macbookpro08-centrim:~] gjp22% diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *320.1 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_CoreStorage 318.1 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Apple_Journal 536.9 MB disk0s4
5: Apple_HFS scratchy 536.9 MB disk0s5
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS speedy *317.8 GB disk1
[macbookpro08-centrim:~] gjp22% sudo /sbin/fsck_hfs -R
/sbin/fsck_hfs: option requires an argument -- R
usage: fsck_hfs [-b [size] B [path] c [size] Edfglx m [mode] npqruy] special-device
b size = size of physical blocks (in bytes) for -B option
B path = file containing physical block numbers to map to paths
c size = cache size (ex. 512m, 1g)
E = exit on first major error
d = output debugging info
f = force fsck even if clean (preen only)
g = GUI output mode
x = XML output mode
l = live fsck (lock down and test-only)
m arg = octal mode used when creating lost+found directory
n = assume a no response
p = just fix normal inconsistencies
q = quick check returns clean, dirty, or failure
r = rebuild catalog btree
u = usage
y = assume a yes response
[macbookpro08-centrim:~] gjp22% sudo diskutil unmount /Volumes/scratchy
Volume scratchy on disk0s5 unmounted
[macbookpro08-centrim:~] gjp22% sudo /sbin/fsck_hfs -Re /dev/disk0s5
** /dev/rdisk0s5
Executing fsck_hfs (version diskdev_cmds-540.1~34).
** Checking Journaled HFS Plus volume.
The volume name is scratchy
** Checking extents overflow file.
** Checking catalog file.
** Rebuilding extents overflow B-tree.
** Rechecking volume.
** Checking Journaled HFS Plus volume.
The volume name is scratchy
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
Invalid volume file count
(It should be 336 instead of 226)
Invalid volume directory count
(It should be 37 instead of 52)
Invalid volume free block count
(It should be 124541 instead of 125082)
Volume header needs minor repair
(2, 0)
** Repairing volume.
** Rechecking volume.
** Checking Journaled HFS Plus volume.
The volume name is scratchy
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume scratchy was repaired successfully.
[macbookpro08-centrim:~] gjp22% sudo /sbin/fsck_hfs -fn /dev/disk0s5
** /dev/rdisk0s5 (NO WRITE)
Executing fsck_hfs (version diskdev_cmds-540.1~34).
** Checking Journaled HFS Plus volume.
The volume name is scratchy
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume scratchy appears to be OK.
[macbookpro08-centrim:~] gjp22%