Re: Interesting question on nfs permissions
That's a cool idea that I didn't think of. I was thinking of piping the
output of mkisofs onto cdrecord directly:
mkisofs <options> | cdrecord <options>
instead. Since I have a bunch of "standard" mkisofs aliases that I use for
backing up various chunks of data, my mkisofs command rarely fail so I won't
waste too many blank cd's that way...
neal
On Saturday 08 June 2002 18:50, Bob Proulx wrote:
> > The reason is, obviously, that cdrecord is setuid root, and so the
> > attempt to open the iso file on the nfs share appeared to come from
> > root, and with root_squash on the nfs export, it couldn't get at the
> > file.
>
> [...]
>
> > Any thoughts or suggestions?
>
> How about this? Use standard input for cdrecord. One of the examples
> in the CD-Writing-HOWTO show cdrecord taking the input from a pipe
> from mkisofs for a combined mkisofs/cdrecord solution. But it tells
> me that cdrecord will read from stdin if no file is supplied. So even
> though I have not tried this I believe this should work.
>
> sudo cdrecord -v dev=0,1,0 speed=2 < /net/host/home/user/file.iso
>
> The shell will do the I/O redirection and open the file before
> starting up the command. The file descriptor is just passed along and
> becomes stdin for the cdrecord progam. No need to change anything.
>
> Bob
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