Hi, I've an ext2 filesystem as root filesystem, because it's mounted readonly for the most part. I've built in the support for ext[234] in the kernel. Ext4 takes precedence over ext2 and it mounts the root filesystem: [ 6.184751] EXT4-fs: delayed allocation enabled [ 6.191487] EXT4-fs: mballoc enabled [ 6.197710] EXT4-fs: mounted filesystem hda3 without journal [ 6.203948] VFS: Mounted root (ext4 filesystem) readonly on device 3:3. % mount | grep root rootfs on / type rootfs (rw) /dev/root on / type ext4 (ro,noatime,errors=remount-ro,barrier=1,data=writeback) But when remounting the filesystem read/write and changing a file, the changes are written to the filesystem, but it's remounted readonly immediatly. I've set the mount option remount-ro. [ 203.082300] EXT4 FS on hda3, no journal [ 205.746713] EXT4-fs error (device hda3): ext4_free_data: circular indirect block detected, inode=165056, block=184476 % cat /proc/cpuinfo processor : 0 cpu : 7455, altivec supported clock : 606.000000MHz revision : 3.3 (pvr 8001 0303) bogomips : 36.73 timebase : 18432000 platform : PowerMac model : PowerBook6,3 machine : PowerBook6,3 motherboard : PowerBook6,3 MacRISC3 Power Macintosh detected as : 287 (iBook G4) pmac flags : 0000001b L2 cache : 256K unified pmac-generation : NewWorld Memory : 640 MB % uname -a Linux ibook 2.6.29-rc2 #1 Sat Jan 17 18:04:20 CET 2009 ppc GNU/Linux % tune2fs -l /dev/root tune2fs 1.41.3 (12-Oct-2008) Filesystem volume name: Linux Root Last mounted on: <not available> Filesystem UUID: 2a16f78b-dde3-4224-bb23-6303c0d69c92 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: ext_attr resize_inode dir_index filetype sparse_super large_file Filesystem flags: unsigned_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 327680 Block count: 1310520 Reserved block count: 65526 Free blocks: 294862 Free inodes: 152729 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 319 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Filesystem created: Tue Aug 12 19:22:53 2008 Last mount time: Sun Jan 18 01:59:11 2009 Last write time: Sun Jan 18 01:59:27 2009 Mount count: 2 Maximum mount count: 32 Last checked: Sat Jan 17 19:33:26 2009 Check interval: 15552000 (6 months) Next check after: Thu Jul 16 20:33:26 2009 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Default directory hash: tea Directory Hash Seed: ba7cdd48-9bce-4d4c-afdc-cff8b4008f11 Bye, Jörg. -- Objektivität ist die Wahnvorstellung, Beobachtungen könnten ohne Beobachter gemacht werden – Heinz v. Foerster
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