Hi Thomas, On Sun, 2025-01-19 at 09:37 +0100, Thomas Schmitt wrote: > Hi, > > Bob McGowan wrote: > > One question, what I would like to see is a duplicated > > directory/file > > hierachy on the destination. I have lists of file names in groups > > just > > short of 25G, but I can't find an easy way to send the file names > > to > > any of the programs and have them maintain the hierarchy. They > > just > > dump all the files in the root of the destination. > > > > I did manage this for a few files with 'xorriso -update_r' option > > used > > once per file name and with the full destination path and file name > > listed: > > > > xorriso -update_r /home/me/topdir/file /topdir/file ... > > > > But doing this for thousands of files doesn't seem like it is a > > manageable or robust solution. > > It's not unfeasible. > man xorriso says: > > -options_from_file fileaddress > Read quoted input from fileaddress and execute it like > dialog > lines. Empty lines and lines which begin by # are > ignored. > Normally one line should hold one xorriso command and all > its > parameters. Nevertheless lines may be concatenated > by a > trailing backslash. > See also section "Command processing", paragraph "Quoted > input". > > That paragraph says: > > Quoted input converts whitespace-separated text into words. The > double > quotation mark " and the single quotation mark ' can be used to > enclose > whitespace and make it part of words (e.g. of file names). Each > mark > type can enclose the marks of the other type. A trailing > backslash \ > outside quotations or an open quotation cause the next input line > to be > appended. > [...] > > So you may quote whitespace like blanks, tabs or newline characters > like > in the shell: > > -update_r "/home/me/topdir/filename with blanks" "/topdir/filename > with blanks" > ...more.update_r.commands... > > Since you seem not to strive for adding sessions to already existing > ISO 9660 filesystems, you may also use -map or -map_single : > > -map "/home/me/topdir/filename with blanks" "/topdir/filename with > blanks" > ...more.map.commands... > > about which the man page says: > > -map disk_path iso_rr_path > Insert file object disk_path into the ISO image as > iso_rr_path. > If disk_path is a directory then its whole sub tree is > inserted > into the ISO image. > > -map_single disk_path iso_rr_path > Like -map, but if disk_path is a directory then its sub > tree is > not inserted. > > I.e. these two commands do not ponder whether the iso_rr_path already > leads to an up-to-date version of the file in the ISO filesystem, but > rather copy disk_path to iso_rr_path unconditionally. > > You would write all intended xorriso commands into a disk file, e.g. > /home/me/xorriso_commands > and then let xorriso process it by command -options_from_file like > in: > > xorriso \ > -for_backup \ > -outdev /dev/sr0 \ > -blank as_needed \ > -options_from_file /home/me/xorriso_commands \ > -commit -toc -check_md5 FAILURE -- -eject all > > --------------------------------------------------------------------- > -- > > Another approach is to create a file with a list of pathspecs which > are > a concept from program mkisofs: > > -path_list disk_path > Like -add but read the parameter words from file > disk_path or > standard input if disk_path is "-". The list must > contain > exactly one pathspec or disk_path pattern per line. > > The command -add inserts files into the emerging ISO image in a way > that > is usual with mkisofs: > > -add pathspec [...] | disk_path [***] > Insert the given files or directory trees from filesystem > into > the ISO image. > If -pathspecs is set to "on" or "as_mkisofs" then > pattern > expansion is always disabled and character '=' has a > special > meaning. It separates the ISO image path from the disk path: > iso_rr_path=disk_path > Character '=' in the iso_rr_path must be escaped by '\' > (i.e. as > "\="). > With -pathspecs "on", the character '\' must not be escaped. > The > character '=' in the disk_path must not be escaped. > With -pathspecs "as_mkisofs", all characters '\' must be > escaped > in both, iso_rr_path and disk_path. The character '=' may or > may > not be escaped in the disk_path. > If iso_rr_path does not begin with '/' then -cd is > prepended. > If disk_path does not begin with '/' then -cdx is prepended. > If no '=' is given then the word is used as both, > iso_rr_path > and disk path. If in this case the word does not begin with > '/' > then -cdx is prepended to the disk_path and -cd is > prepended to > the iso_rr_path. > ... > > -pathspecs "on"|"off"|"as_mkisofs" > Control parameter interpretation with xorriso actions -add > and > -path_list. > Mode "as_mkisofs" enables pathspecs of the form > iso_rr_path=disk_path > like with program mkisofs -graft-points. > ... > > With this approach you would write lines like > > /topdir/file=/home/me/topdir/file > /topdir/filename with blanks=/home/me/topdir/filename with blanks > /topdir/filename with \= in it=/home/me/topdir/filename with = in > it > > into a disk file, e.g. > /home/me/xorriso_pathspecs > and perform in -path_list xorriso: > > xorriso \ > -for_backup \ > -outdev /dev/sr0 \ > -blank as_needed \ > -pathspecs as_mkisofs \ > -path_list /home/me/xorriso_pathspecs \ > -commit -toc -check_md5 FAILURE -- -eject all > > --------------------------------------------------------------------- > -- > How i handle my larger backups: > > I assume that you want to split a larger collection of files into > groups which fit on the BD media. > Nearly half a life ago, my own endeavor with ISO 9660 and optical > media > began with creating a tool which does this splitting automatically: > > http://scdbackup.webframe.org/main_eng.html > http://scdbackup.webframe.org/examples.html > > BD is configured and handled by the DVD configuration and commands of > scdbackup. > Once: > > ./CONFIGURE_DVD > > With each backup, you'd do something like: > > sdvdbackup /topdir=/home/me/topdir -not /home/me/topdir/temp_files > > Back then there was only mkisofs for producing ISO 9660. So > sdvdbackup > uses its pathspecs notation for defining the mapping from disk to BD. > Of course i meanwhile use xorriso for the roles of cdrecord, > growisofs > and mkisofs. > > I'm still backing up multi-media file collections by help of > sdvdbackup. > Backups which fill dozens of media might become lengthy. So there is > also > the opportunity to perform incremental backups: > > http://scdbackup.webframe.org/examples.html#incremental > > --------------------------------------------------------------------- > -- > > Have a nice day :) > > Thomas > Thank you for your guidance and patience. The -options_from_file is exactly what I was needing and works perfectly.
Just one last question. How do you pronounce "xorriso"? :) I hope your day was as good as mine. Bob
