Hi, Joerg Schilling: > > It is _impossible_ to do correct backups without additional disk space. Giuseppe Corbelli: > You say it is necessary to store star archives on a filesystem prior > to backup?
It is possible to write archives as sessions directly to multi-session media: DVD-R, DVD+R, DVD-RW, CD-R, CD-RW. As long as one knows the start addresses it is easy to read the archives by help of dd. This works for afio as well as for star. Try for example: find . | \ afio -oZ - | \ cdrskin -v dev=/dev/sr0 -multi - The writer drive should be able to tell a table of content: cdrskin -v dev=/dev/sr0 -toc With a 4 session DVD+R it should report something like: ... cdrskin: status 3 BURN_DISC_APPENDABLE "There is an incomplete disc in the drive" ... Current: DVD+R ... first: 1 last 4 track: 1 lba: 0 ( 0) 00:02:00 adr: 1 control: 4 mode: 1 track: 2 lba: 66112 ( 264448) 14:43:37 adr: 1 control: 4 mode: 1 track: 3 lba: 87744 ( 350976) 19:31:69 adr: 1 control: 4 mode: 1 track: 4 lba: 1663056 ( 6652224) 369:36:06 adr: 1 control: 4 mode: 1 track:lout lba: 1682640 ( 6730560) 373:57:15 adr: 1 control: 4 mode: -1 The lba values 0, 66112, 87744, 1663056 tell the start addresses in 2048 byte blocks. Like: lba=66112 dd if=/dev/sr0 bs=2048 skip=$lba | afio -tv - One problem is that my DVD-ROM drive does not tell about all DVD tracks but at most issues a fake table of content with an initial pseudo-session and the last session. So one should memorize the start addresses after burning. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
