If your writing out to a harddisk then you can perform the whole operation using dd. say your image size is 629,153,280 bytes in size, dd if=/cdrom/image.001 of=/dev/sda bs=512 umount /cdrom *load new cd* mount /cdrom dd if=/cdrom/image.002 of=/dev/sda bs=512 seek=1228815 umount /cdrom *load cd* mount /cdrom dd if=/cdrom/image.003 of=/dev/sda bs=512 seek=2457630 and so on, you could do the whole thing in a shell script that ejects the cdrom and then pauses and beeps so you can load the new one and press any key to continue if you'd like. It is alot easier if you have all the images on a partition. A CD tower or dukebox could be a good option. Hope it helps Adam Technical Consultant ----------------------------------------------------------------------- FORENSIC DATA SERVICES PTY LIMITED http://www.forensicdata.com.au ------------------------------------------------------------------------ The information contained in this e-mail is confidential and is intended solely for the addressee. If you received this e-mail by mistake please notify us immediately and delete all copies of this message. You must not disclose or use in any way the information in the e-mail. It is the responsibility of the recipient to virus scan this e-mail and any attachments included. On Tue, 16 Oct 2001, Neil Long wrote: > Hello > > Disks keep getting bigger :-( > > It is straight forward to split up a large disk in to CD-R size chunks but > am I missing something painfully obvious for a reconstruction of a disk from > said CD-Rs? I assume you need a large holding disk in order to > > cat img.1 img.2 img.3 etc etc > /dev/disk-whatever (or using | dd > of=/dev/disk and options to maintain blocksizes, etc) > > [gzip, zcat, etc could be used to reduce the image sizes but becomes > somewhat hard to predict with regard to compressibility without a dry-run] > > Is there any easy way to append from individual CDs to a device file? > > Feel free to point out the painfully obvious and any hints as to what to do > as disks get way too big ;-) > > Cheers > Neil > > > ----------------------------------------------------------------- > This list is provided by the SecurityFocus ARIS analyzer service. > For more information on this free incident handling, management > and tracking system please see: http://aris.securityfocus.com > ----------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com
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