Date: Sat, 14 Feb 1998 15:43:08 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: hackers@FreeBSD.ORG Subject: ufs on CDROM anyone ? Message-ID: <199802141443.PAA24546@labinfo.iet.unipi.it>
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With the price of CDR gone so down, i decided to try a fastest technique for backup -- namely, just burn the raw partition on a CD and then mount the disk as ufs. Everything seemed to go fine (mount /dev/wcd0c /mnt) so i tried to read the whole disk with tar cvf /dev/null /mnt after some time, i decided that things were working, pressed Ctrl-C to abort TAR, and the system (2.2.1-R with IDE disk and ATAPI cdrom) rebooted. No panic or other messages. Is anyone else willing to look at the problem and see if it can be reproduced with SCSI cds, or newer releases ? The partition I dumped was about 500MB, not full, but i did not try to write to the CD either (although I agree I should have used mount -r perhaps...) disk went fine. What i'd like to know is if the problem is related to the ATAPI code, or to something in the ufs code which assumes the partition as writable and dies if the underlying device does not support writes... cheers luigi -----------------------------+-------------------------------------- Luigi Rizzo | Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it | Universita' di Pisa tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ _____________________________|______________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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