Hello, I created backup DVDs formatted using reiserfs. However, mounting them is not possible. If I try to mount such a DVD, I get following results:
Aug 31 01:08:18 notebook2 kernel: ReiserFS: hdc: using ordered data mode Aug 31 01:08:18 notebook2 kernel: ReiserFS: hdc: warning: sh-458: journal_init_dev: cannot init journal device 'unknown-block(22,0)': -30 Aug 31 01:08:18 notebook2 kernel: ReiserFS: hdc: warning: sh-462: unable to initialize jornal device Aug 31 01:08:18 notebook2 kernel: ReiserFS: hdc: warning: sh-2022: reiserfs_fill_super: unable to initialize journal space I get this error even when mounting using "-o ro,nolog". I tracked this down to the method "journal_init_dev", which opens the journal device with mode "blkdev_mode = FMODE_READ | FMODE_WRITE;" except when the journal device is marked read only. However, as it seems, my DVD burner drive is able to write DVD media (so it is not a read-only-device, in general), but the particular DVD is only readable, not writable. That's why (I think) the journal device itself is not marked read only and yet "open_by_devnum(jdev, blkdev_mode);" fails. The method "journal_init_dev" should honor the mount options "ro" or "nolog" or both, which it currently does not (as of Linux 2.6.18-rc4). Alternatively, method "journal_init_dev" might try to open the journal device again (only using "read only" mode) in case the first try to open results in -EROFS. Xuân Baldauf.
