On Dec 08, 2004 21:16 -0700, Stephen Warren wrote: > I'm attempting to setup a box here to be a file-server for all my data. > I'm attempting to resize an ext3 partition to demonstrate this > capability to myself before fully committing to this system as the > primary data storage. I'm having some problems resizing an ext3 > filesystem after I've resized the underlying logical volume. Following > the ext3 resize, fsck spits out lots of errors like: > > Pass 1: Checking inodes, blocks, and sizes > Group 49's inode table at 1605636 conflicts with some other fs block. > Relocate<y>? no > > I believe that I'm following the correct procedure for resizing the > filesystem. Any pointers greatly appreciated. Thanks. > > A complete transcript demonstrating this problem follows: Thanks for the detail, it is clear I think what is happening. > root@SEVERN:~# mke2fs /dev/severn_vg0/test > mke2fs 1.35 (28-Feb-2004) > max_blocks 1342177280, rsv_groups = 40960, rsv_gdb = 319 > Filesystem label= > OS type: Linux > Block size=4096 (log=2) > Fragment size=4096 (log=2) > 655360 inodes, 1310720 blocks > 65536 blocks (5.00%) reserved for the super user > First data block=0 > Maximum filesystem blocks=1342177280 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This implies that the FC3 e2fsprogs has the ext2online patch for mke2fs applied so that it is reserving block group descriptors for online (mounted) filesystem resizing. It seems that resize2fs isn't taking these reserved blocks into account when it is allocating the inode table. > root@SEVERN:~# e2fsck -f /dev/severn_vg0/test > e2fsck 1.35 (28-Feb-2004) > Pass 1: Checking inodes, blocks, and sizes > Group 49's inode table at 1605636 conflicts with some other fs block. > Relocate<y>? no > > Group 1: block bitmap at 33089, inode bitmap at 33090, inode table at > 33091 > 31933 free blocks, 16384 free inodes, 0 used directories > Group 3: block bitmap at 98625, inode bitmap at 98626, inode table at > 98627 > 31933 free blocks, 16384 free inodes, 0 used directories > Group 5: block bitmap at 164161, inode bitmap at 164162, inode table > at 164163 > 31933 free blocks, 16384 free inodes, 0 used directories > Group 7: block bitmap at 229697, inode bitmap at 229698, inode table > at 229699 > 31933 free blocks, 16384 free inodes, 0 used directories All of these groups have backup group descriptors, as do all groups numbered {3,5,7}^n. Note free blocks count. > Group 49: block bitmap at 1605634, inode bitmap at 1605635, inode > table at 1605636 > 32252 free blocks, 16384 free inodes, 0 used directories This is the first group with backup descriptors created by resize2fs. It doesn't have the reserved group blocks (about 300 or so) and e2fsck is likely complaining about this. This is obviously a bug that needs to be fixed. The good news is that instead of resizing your filesystem while it is unmounted you can resize it while it is mounted, and that shouldn't suffer from any of these problems (and is much more convenient). You need the ext2resize RPM from sourceforge (don't know why it isn't in FC2 if they have also applied the patch to mke2fs): ftp://rpmfind.net/linux/sourceforge/e/ex/ext2resize/ext2resize-1.1.19-1.i386.rpm Then you can mke2fs a new filesystem, mount it, lvextend, and run "ext2online /dev/severn_vg0/test" and it will grow to fill the LV. There is also a tool that ships with LVM called "e2fsadm" which does this for you, like "e2fsadm -L +5G /dev/severn_vg0/test" should do both the lvextend and ext2online step at once. You should also be able to properly resize it while unmounted with ext2resize, but that is far less interesting... Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://members.shaw.ca/adilger/ http://members.shaw.ca/golinux/
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