New thread (gmane gave me grief at finding the old one, and anyways, I'm adding
a couple new topics to the mix).
$ attrib foo
M:\foo
$ attrib +r +s foo
$ attrib foo
R M:\foo
$ rm foo
rm: remove write-protected regular empty file `foo'? y
rm: cannot remove `foo': Permission denied
$ attrib -r foo
$ rm foo
Just as we suspected, MVFS doesn't support DOS attributes, which also
interferes with deletion abilities (I can also use 'chmod a+w' instead
of 'attrib -r' to get deletion to work).
Another one that's been bothering me: cp -p can't preserve times when copying
from a remote drive (I'm not sure if it is samba, NFS, or something else) over
to MVFS, but touch can; also, copying from local to MVFS has no problems
preserving times:
$ echo > /tmp/bar
$ cp -p /cygdrive/f/foo . # remote to MVFS
$ ls -l /cygdrive/f/foo foo
----------+ 1 eblake Domain Users 925184 Nov 4 2004 cygdrive/f/foo
-r--r--r-- 1 eblake Domain Users 925184 Jul 15 13:33 foo
$ touch --ref cygdrive/f/foo foo
$ ls -l /cygdrive/f/foo foo
----------+ 1 eblake Domain Users 925184 Nov 4 2004 /cygdrive/f/foo
-r--r--r-- 1 eblake Domain Users 925184 Nov 4 2004 foo
$ cp -p /tmp/bar bar # local to MVFS
$ ll /tmp/bar bar
-rw-r----- 1 eblake Domain Users 1 Jul 15 13:26 /tmp/bar
-rw-r--r-- 1 eblake Domain Users 1 Jul 15 13:26 bar
$ touch bar
$ ll /tmp/bar bar
-rw-r----- 1 eblake Domain Users 1 Jul 15 13:26 /tmp/bar
-rw-r--r-- 1 eblake Domain Users 1 Jul 15 13:37 bar
Do you need any straces for any of these actions?
Also, volinfo is such a helpful debug utility; should we go ahead and add it to
the utils directory, and compile it alongside other tools like cygcheck as part
of the base package?
$ volinfo /cygdrive/f/
Device Type : 7
Characteristics : 10
Volume Name : <SLDAT10>
Serial Number : 1414974143
Max Filenamelength : 255
Filesystemname : <NTFS>
Flags : 700ff
FILE_CASE_SENSITIVE_SEARCH : TRUE
FILE_CASE_PRESERVED_NAMES : TRUE
FILE_UNICODE_ON_DISK : TRUE
FILE_PERSISTENT_ACLS : TRUE
FILE_FILE_COMPRESSION : TRUE
FILE_VOLUME_QUOTAS : TRUE
FILE_SUPPORTS_SPARSE_FILES : TRUE
FILE_SUPPORTS_REPARSE_POINTS: TRUE
FILE_SUPPORTS_REMOTE_STORAGE: FALSE
FILE_VOLUME_IS_COMPRESSED : FALSE
FILE_SUPPORTS_OBJECT_IDS : TRUE
FILE_SUPPORTS_ENCRYPTION : TRUE
FILE_NAMED_STREAMS : TRUE
FILE_READ_ONLY_VOLUME : FALSE
FILE_SEQUENTIAL_WRITE_ONCE : FALSE
FILE_SUPPORTS_TRANSACTIONS : FALSE
$ volinfo /tmp
Device Type : 7
Characteristics : 20
Volume Name : <>
Serial Number : 1277927559
Max Filenamelength : 255
Filesystemname : <NTFS>
Flags : 700ff
FILE_CASE_SENSITIVE_SEARCH : TRUE
FILE_CASE_PRESERVED_NAMES : TRUE
FILE_UNICODE_ON_DISK : TRUE
FILE_PERSISTENT_ACLS : TRUE
FILE_FILE_COMPRESSION : TRUE
FILE_VOLUME_QUOTAS : TRUE
FILE_SUPPORTS_SPARSE_FILES : TRUE
FILE_SUPPORTS_REPARSE_POINTS: TRUE
FILE_SUPPORTS_REMOTE_STORAGE: FALSE
FILE_VOLUME_IS_COMPRESSED : FALSE
FILE_SUPPORTS_OBJECT_IDS : TRUE
FILE_SUPPORTS_ENCRYPTION : TRUE
FILE_NAMED_STREAMS : TRUE
FILE_READ_ONLY_VOLUME : FALSE
FILE_SEQUENTIAL_WRITE_ONCE : FALSE
FILE_SUPPORTS_TRANSACTIONS : FALSE
[For the record, I hate clearcase - I'd much rather use git. Whoever thought
turning a version control system into a file system made sense must have been
on something at the time.]
--
Eric Blake
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