Re: problem with chmod
Bret Busby wrote:
>
> I have created a new data partition for a Ubuntu/Debian dual boot
> system, using gparted from the Debian 4 installation.
>
> Now I have to figure out how to make the new data partition accessible.
>
> chmod (from the Debian system) seems to be designed to frustrate.
>
> it used to be that using a syntax like
> chmod 777 <target>
> would make a file/directory able to be written to and read from (and
> executed) by anyone.
>
> I know that is how the syntax used to be, because I remember a person
> (on a UNIX system) losing his account, when he accidentally entered
> chmod .
> , which changed his . file permissions to zero, and not even the
> sysadmin could save his account, so he had to be issued with a new
> account.
>
> And, I have used the numbers for permissions in Linux, when I have
> previously had to change permissions, when FTP'ing files up to web sites.
>
> Now, it seems, that doesn't work anymore, and I can't figure out how
> to make chmod work.
>
> I have tried using what I understand to be the required syntax from
> "man chmod" for Debian 4, but I can't get it to work. It returns
> errors for the syntax.
>
> If I use the format above, no error is returned; it just doesn't do
> anything.
>
> "
> chmod 777 /data
> bretnewworkstation:~# ls -l /data
> total 16
> drwx------ 2 root root 16384 2009-04-02 17:34 lost+found
> "
>
> Attempts:
>
> "
> bretnewworkstation:~# chmod 777 /data
> bretnewworkstation:~# ls -l /data
> total 16
> drwx------ 2 root root 16384 2009-04-02 17:34 lost+found
> bretnewworkstation:~# chmod rwxXstugoa /data
> chmod: invalid mode: `rwxXstugoa'
> Try `chmod --help' for more information.
> bretnewworkstation:~# chmod +rwxXstugoa /data
> chmod: invalid mode: `+rwxXstugoa'
> Try `chmod --help' for more information.
> bretnewworkstation:~# chmod --help
> Usage: chmod [OPTION]... MODE[,MODE]... FILE...
> or: chmod [OPTION]... OCTAL-MODE FILE...
> or: chmod [OPTION]... --reference=RFILE FILE...
> Change the mode of each FILE to MODE.
>
> -c, --changes like verbose but report only when a change
> is made
> --no-preserve-root do not treat `/' specially (the default)
> --preserve-root fail to operate recursively on `/'
> -f, --silent, --quiet suppress most error messages
> -v, --verbose output a diagnostic for every file processed
> --reference=RFILE use RFILE's mode instead of MODE values
> -R, --recursive change files and directories recursively
> --help display this help and exit
> --version output version information and exit
>
> Each MODE is of the form `[ugoa]*([-+=]([rwxXst]*|[ugo]))+'.
>
> Report bugs to <bug-coreutils@gnu.org>.
> bretnewworkstation:~# chmod ugoa*+ rwx /data
> chmod: invalid mode: `ugoa*+'
> Try `chmod --help' for more information.
> bretnewworkstation:~# chmod ugoa*+ rwx /dev/hda8
> chmod: invalid mode: `ugoa*+'
> Try `chmod --help' for more information.
> "
>
> The current status of the partition is:
> "
> ls -l /data
> total 16
> drwx------ 2 root root 16384 2009-04-02 17:34 lost+found
> "
>
> The Debian fstab entry (I edited the fstab file, to incorporate the
> partition, from the Debian side) is
> "
> /dev/hdc8 /data ext3 defaults 0 0
> "
>
> Any helpful suggestions would be appreciated.
>
> --
> Bret Busby
> Armadale
> West Australia
> ..............
>
> "So once you do know what the question actually is,
> you'll know what the answer means."
> - Deep Thought,
> Chapter 28 of Book 1 of
> "The Hitchhiker's Guide to the Galaxy:
> A Trilogy In Four Parts",
> written by Douglas Adams,
> published by Pan Books, 1992
>
> ....................................................
>
>
Is your partition mounted rw?
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