Hi, is this a bug or am I missing something? I'm not at all a kernel hacker. 1. Remounting write-protected floppy 2. It is possible to remount a write-protected, read-only mounted floppy disk as read-writeable, and write and remove files on it. The result is weird, depends on what you're doing 3. floppy, mount, filesystem, VFS 4. Kernel: 2.2.19 and 2.2.18 (unpatched) mount 2.10m (NFS patched, and unpatched originating SuSE 7.0) 5. Kernel warnings: (a lot) Apr 26 10:25:07 max kernel: floppy0: Drive is write protected Apr 26 10:25:07 max kernel: end_request: I/O error, dev 02:00\ (floppy), sector 82 6. Procedure: ------------------------------------------------------------------- Using an ext2-formatted, write-protected HD (1.44) floppy: max:~ # mount /dev/fd0 /floppy -t ext2 mount: block device /dev/fd0 is write-protected, mounting read-only max:~ # mount /dev/fd0 /floppy -t ext2 -o remount,rw max:~ # ls -l /floppy total 765 drwxr-xr-x 3 root root 1024 Apr 26 08:35 . drwxr-xr-x 20 root root 4096 Jan 16 23:42 .. -rw-r--r-- 1 root root 761016 Apr 26 08:35 bzImage drwxr-xr-x 2 root root 12288 Apr 26 08:33 lost+found max:~ # echo empty > /floppy/bzImage max:~ # ls -l /floppy total 18 drwxr-xr-x 3 root root 1024 Apr 26 08:35 . drwxr-xr-x 20 root root 4096 Jan 16 23:42 .. -rw-r--r-- 1 root root 6 Apr 26 10:57 bzImage drwxr-xr-x 2 root root 12288 Apr 26 08:33 lost+found max:~ # cat /floppy/bzImage ¸À?ظmax:~ # The last command sometimes writes "empty" instead of the old content of bzImage as above. ------------------------------------------------------------------- 7. Environment ------------------------------------------------------------------- Linux max 2.2.18 #2 Sun Mar 4 13:56:26 CET 2001 i586 unknown Kernel modules 2.3.11 Gnu C 2.95.2 Binutils 2.9.5.0.24 Linux C Library x 1 root root \ 4070534 Sep 5 2000 /lib/libc.so.6 Dynamic linker ldd (GNU libc) 2.1.3 Procps 2.0.6 Mount 2.10m Net-tools 1.56 Kbd 0.99 Sh-utils 2.0 Modules Loaded snd-seq-midi snd-seq-midi-event\ snd-seq snd-card-cs4232 isapnp snd-mpu401-uart snd-rawmidi\ snd-seq-device snd-cs4231 snd-mixer snd-pcm snd-opl3\ snd-hwdep snd-timer snd ------------------------------------------------------------------- Regards, Christian P.S.: If you answer, please CC: me, I'm not on the list. -- * Christian Knoke +49 4852 92248 * * D-25541 Brunsbuettel Wurtleutetweute 49 * * * * * * * * * * Ceterum censeo Microsoft esse dividendum. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
