Hello. I actually encounter this problem on SuSE linux, but I am pretty sure I can reach the mkisofs authors much easier on this list, as this could be a bug report, it's important to reach the authors/maintainers. I managed to learn to use -old-root to create CDR with only updated files, see my previous post (attached at the end of this email). Here is how to reproduce this 'bug': insert an empty CDR, do this zhangweiwu@joe:~> mkisofs -r -iso-level 4 -m .beagle -V 20060922_zhangweiwu_backup \ -m Cache -m .Trash -m .thumbnails -m music -m '*.avi' -o /tmp/zhangweiwu.iso ~ The first session of multi-session disc is made. The next day, do this: zhangweiwu@joe:~> mkisofs -C `cdrecord dev=/dev/hdd -msinfo` -M /dev/hdd -old-root / \ -m .beagle -m Cache -m .Trash -m .thumbnails -m music -m '*.avi' \ -r -iso-level 4 -V 20060923_zhangweiwu_backup -o /tmp/zhangweiwu.iso ~ Then mkisofs start working, reading CDR for 10 seconds, then hang there. top(1) shows mkisofs uses 100% CPU resource. First I thought it's simply making the image, I left the computer there for 10 hours and it's still computing, then I think probably it is a bug, mkisofs should not take so long time to make the image. mkisofs only read the CDR in the beginning, then in the following hours it doesn't seems to be reading the CDR; besides, both CDR and the DVD-RW driver are new, thus I guess it's not related to CDR performance. I added two '-v' parameter to the commandline and get the attached typescript (using script(1)) for you for debugging purpose. In that typescript I used Ctrl+C to break mkisofs after 10 hours. Total number of files recorded on CDR is some 1000 files. Please let me know what else should I provide to help you get the bug tracked/reproduced. for me it is always reproducible. 在 2006-09-17日的 15:19 +0800，张韡武写道： > Hello. I was a happy user of Nero on Windows, though I am not a happy > Windows user and now switched to Linux. My problem is I cannot backup > using my favorite way anymore: > > I used to back up our project files (devided into 8 categories, each > category have about 200MB files) on daily basis. This is how I do it on > Windows. > > 1. on monday, prepare 8 empty CDR, one for each category, back up > everything (each CDR take 200MB with 400MB free space); > 2. on the following days, launch Nero and select continue > multi-session, it will AUTOMATICALLY add every file added in > that day or replaced in that day, removing every file removed > that day, and create another session for only the changed > documents. Every day around 30MB files are changed in each > category, every CDR is filled with an 30MB session. > 3. repeat this for one week, on the weekend, store these CDR > backups and prepare new blank CDR for the next week. > > This is actually very convenient for me, each CDR is labeled with week > number and project category name. If the manager ask for files on Jan > 12th in the training project, I go to find the CDR in training project > backup CDs, find that week's backup, figure out 12th is a Thursday, thus > mount the 4th session. I actually have been doing this for years. Now I > switched to inux and no longer know how to do the same operation. > k3b doesn't automatically replace old files when I continue > multi-session disc, besides, there seems to be no way to remove a file > from a previous session, right click a file in an imported session in > k3b, there is no option to remove it. > > I am not afraid of commandline, thus if it is possible at all to do the > backup the same mechanism I did on Windows, I would love to sit down and > write some backup scripts with mkisofs/cdrecord. However as I read > through the manual of both mkisofs and cdrecord, there are no clear > instructions on how to modify the directory structure of previous > session and apply it to current session. E.g. in mkisofs -C and -M can > be used to import previous session, but there are no written instruction > on how to remove a file after imported previous session. > > Can you please let me know if it is possible at all to manipulate the > backup operation in Linux? If possible, where can I look for docs on how > to generate proper iso image with mkisofs for a session modified from > previous session (more specifically, how to delete a file from previous > session)? > > Thank you in advance! > > P.S. I also tried nero Linux version, for two reasons I cannot use it > yet: first it doesn't install at all (some errors), second, it seems not > able to operate through SSH, since after switched to Linux we separated > file server to the server room 50m from my office, I would prefer to sit > in the office to do the backup by using scripts and ssh. > > P.S. Please redirect me to another proper mailing list if you think I'd > better post questions there. I am a bit afraid this question is pretty > into the depth of mkisofs and should go to some other groups. > > P.S. Now I am using one single CDR for each backup, thus currently I use > 7 times more CDRs to backup then I used to. > -- 锐业软服（国内业务） http://www.realss.cn Real SoftService http://www.realss.com 销售咨询(Sales Department): 0086 592 20 99987 (Chinese, German, English) 国际业务(International Sales): 0086 10 8460 6011 (German and English) 联系：厦门大学科技园，嘉庚二号楼6楼 邮政：厦门大学2312号信箱（邮编361005）
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