cp --reflink=auto for MacOS X
Clash Royale CLAN TAG#URR8PPP
cp --reflink=auto shows following output for MacOS:
cp: illegal option -- -
Is copy-on-write or deduplication supported for HFS? How can I COW huge files with HFS?
file-copy hfs+ deduplication
asked Sep 22 '16 at 8:25
SergeiSergei
17018
add a comment |
cp --reflink=auto shows following output for MacOS:
cp: illegal option -- -
Is copy-on-write or deduplication supported for HFS? How can I COW huge files with HFS?
file-copy hfs+ deduplication
asked Sep 22 '16 at 8:25
SergeiSergei
17018
add a comment |
cp --reflink=auto shows following output for MacOS:
cp: illegal option -- -
Is copy-on-write or deduplication supported for HFS? How can I COW huge files with HFS?
file-copy hfs+ deduplication
asked Sep 22 '16 at 8:25
SergeiSergei
17018
cp --reflink=auto shows following output for MacOS:
cp: illegal option -- -
Is copy-on-write or deduplication supported for HFS? How can I COW huge files with HFS?
file-copy hfs+ deduplication
file-copy hfs+ deduplication
asked Sep 22 '16 at 8:25
SergeiSergei
17018
asked Sep 22 '16 at 8:25
SergeiSergei
17018
asked Sep 22 '16 at 8:25
SergeiSergei
17018
asked Sep 22 '16 at 8:25
SergeiSergei
17018
asked Sep 22 '16 at 8:25
SergeiSergei
17018
17018
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Unfortunately the --reflink=auto option isn't available in MacOS just yet. HFS also does not natively support CoW (Copy on Write).
Perhaps in future such support will be added - likely when ZFS becomes natively available.
I suggest referring to the man page to get the options that are currently available to you: man cp
NOTE:
In MacOS, most commands (including cp) only support short options, not long options. Thus, if there were an equivalent, it would be a single character only. Example would be -L or --dereference available in GNU coreutils' version of cp. In MacOS, only -L is available.
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
add a comment |
Apple's new APFS filesystem supports copy-on-write; CoW is automatically enabled in Finder copy operations where available, and when using cp -c on the command line.
Unfortunately, cp -c is equivalent to cp --reflink=always (not auto), and will fail when copy-on-write is not possible with
cp: somefile: clonefile failed: Operation not supported
I'm not aware of a way to get auto behavior. You could make a shell script or function with automatic fallback a la
cpclone() cp "$@";
but it'll be difficult to make it entirely reliable for all edge cases.
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
add a comment |
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2 Answers
2
active
oldest
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2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Unfortunately the --reflink=auto option isn't available in MacOS just yet. HFS also does not natively support CoW (Copy on Write).
Perhaps in future such support will be added - likely when ZFS becomes natively available.
I suggest referring to the man page to get the options that are currently available to you: man cp
NOTE:
In MacOS, most commands (including cp) only support short options, not long options. Thus, if there were an equivalent, it would be a single character only. Example would be -L or --dereference available in GNU coreutils' version of cp. In MacOS, only -L is available.
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
add a comment |
Unfortunately the --reflink=auto option isn't available in MacOS just yet. HFS also does not natively support CoW (Copy on Write).
Perhaps in future such support will be added - likely when ZFS becomes natively available.
I suggest referring to the man page to get the options that are currently available to you: man cp
NOTE:
In MacOS, most commands (including cp) only support short options, not long options. Thus, if there were an equivalent, it would be a single character only. Example would be -L or --dereference available in GNU coreutils' version of cp. In MacOS, only -L is available.
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
add a comment |
Unfortunately the --reflink=auto option isn't available in MacOS just yet. HFS also does not natively support CoW (Copy on Write).
Perhaps in future such support will be added - likely when ZFS becomes natively available.
I suggest referring to the man page to get the options that are currently available to you: man cp
NOTE:
In MacOS, most commands (including cp) only support short options, not long options. Thus, if there were an equivalent, it would be a single character only. Example would be -L or --dereference available in GNU coreutils' version of cp. In MacOS, only -L is available.
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
Unfortunately the --reflink=auto option isn't available in MacOS just yet. HFS also does not natively support CoW (Copy on Write).
Perhaps in future such support will be added - likely when ZFS becomes natively available.
I suggest referring to the man page to get the options that are currently available to you: man cp
NOTE:
In MacOS, most commands (including cp) only support short options, not long options. Thus, if there were an equivalent, it would be a single character only. Example would be -L or --dereference available in GNU coreutils' version of cp. In MacOS, only -L is available.
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
answered Jul 31 '17 at 15:21
zaTrickyzaTricky
22327
22327
add a comment |
add a comment |
Apple's new APFS filesystem supports copy-on-write; CoW is automatically enabled in Finder copy operations where available, and when using cp -c on the command line.
Unfortunately, cp -c is equivalent to cp --reflink=always (not auto), and will fail when copy-on-write is not possible with
cp: somefile: clonefile failed: Operation not supported
I'm not aware of a way to get auto behavior. You could make a shell script or function with automatic fallback a la
cpclone() cp "$@";
but it'll be difficult to make it entirely reliable for all edge cases.
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
add a comment |
Apple's new APFS filesystem supports copy-on-write; CoW is automatically enabled in Finder copy operations where available, and when using cp -c on the command line.
Unfortunately, cp -c is equivalent to cp --reflink=always (not auto), and will fail when copy-on-write is not possible with
cp: somefile: clonefile failed: Operation not supported
I'm not aware of a way to get auto behavior. You could make a shell script or function with automatic fallback a la
cpclone() cp "$@";
but it'll be difficult to make it entirely reliable for all edge cases.
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
add a comment |
Apple's new APFS filesystem supports copy-on-write; CoW is automatically enabled in Finder copy operations where available, and when using cp -c on the command line.
Unfortunately, cp -c is equivalent to cp --reflink=always (not auto), and will fail when copy-on-write is not possible with
cp: somefile: clonefile failed: Operation not supported
I'm not aware of a way to get auto behavior. You could make a shell script or function with automatic fallback a la
cpclone() cp "$@";
but it'll be difficult to make it entirely reliable for all edge cases.
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
Apple's new APFS filesystem supports copy-on-write; CoW is automatically enabled in Finder copy operations where available, and when using cp -c on the command line.
Unfortunately, cp -c is equivalent to cp --reflink=always (not auto), and will fail when copy-on-write is not possible with
cp: somefile: clonefile failed: Operation not supported
I'm not aware of a way to get auto behavior. You could make a shell script or function with automatic fallback a la
cpclone() cp "$@";
but it'll be difficult to make it entirely reliable for all edge cases.
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
answered Mar 4 at 18:56
Søren LøvborgSøren Løvborg
1113
1113
add a comment |
add a comment |
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