git.wh0rd.org / dump.git / blame
| Commit | Line | Data |
|---|---|---|
| 8b7882a8 SP |
1 | Experimental dump to CDROMs |
| 2 | =========================== | |
| 3 | ||
| 4 | Starting with dump/restore version 0.4b24 or later versions of | |
| 5 | dump/restore you can dump to CDROMs. | |
| 6 | ||
| 7 | You need a (successfully installed) CD-writing software like | |
| 8 | cdrecord (tested with versions 1.11a04 onwards) | |
| 9 | ||
| 10 | These scripts use the new switch ('V') to restore | |
| 11 | which signals a multi-volume (non-tape) medium like CDROMs | |
| 12 | ||
| 13 | I have used the shell scripts below to generate/verify the dump | |
| 14 | ||
| 15 | YOU MUST MODIFY these - especially | |
| 16 | ||
| 17 | - adapt FS to the filesystem to be dumped | |
| 18 | - UserExit to the path to the user exit function like UserInfo below | |
| 19 | - FiFo to the path to a named pipe (better not on the same filesystem) | |
| 20 | - your cd device(s) ( I have /dev/cdrom a symlink to /dev/sr0 and | |
| 21 | /dev/cdrw a symlink to /dev/sr1 ) | |
| 22 | - your path to cdrecord and | |
| 23 | - - cdrecord's dev parameter must be adapted to your CD burner | |
| 24 | - - cdrecord's fs (= input fifo size), use less than 64m if you | |
| 25 | are short of memory | |
| 26 | - - cdrecord's speed parameter : this parameter not only depends on the | |
| 27 | capabilities of your CD burner BUT also on the speed of your CPU !!! | |
| 28 | With the dump -z6 compression on a 900 MHz Pentium III I had no problems | |
| 29 | with speed=4 which is the maximum speed for my burner. | |
| 30 | It looks as if at least speed=6 would be possible on a 900 MHz Pentium III. | |
| 31 | If speed is to large, cdrecord's input fifo gets empty (as | |
| 32 | shown by cdrecord) and then you have a buffer underrun. | |
| 33 | ||
| 34 | - replace the wayplay command with something which alerts you if you | |
| 35 | have to change CDROMS | |
| 36 | ||
| 37 | - for restore or verification replace /dev/cdrom by something | |
| 38 | which applies for you (device for the CDreader) | |
| 39 | ||
| 40 | ||
| 41 | DON'T FORGET to generate a boot-CD which has the 0.4b24 restore | |
| 42 | or a newer version of restore on board | |
| 43 | ||
| 44 | I prefer timos_Rescue_Cd_Set-0.6.1 see http://rescuecd.sourceforge.net | |
| 45 | ||
| 46 | ||
| 47 | Please Cc bug-reports to jarausch@igpm.rwth-aachen.de | |
| 48 | ||
| 49 | ----------------------------------------------------------------- | |
| 50 | This file and the scripts were slightly edited when the | |
| 51 | Helmut Jarausch patch was integrated in dump-0.4b24. | |
| 52 | Stelian. | |
| 53 |