[uml-user] resize the rootfs

[Jack <jia...@qi...>]

hi , 

 i met a strange problem.
  

     root.old it works normally .  but ony 600M, 

and i build a new 1g , but the new filesystem doesn't work . any advices?


     dd if=/dev/zero of = newfs bs=1k count=1 seek=$[1024*1024]
     mkfs -t ext3 newfs

    mount -o loop oldfs /mnt/old
    mount -o loop newfs /mnt/new
    cp -a /mnt/old/* /mnt/new

   umount /mnt/old 
   umount /mnt/new

   linux ubd0=old  , still works.
   linux ubd0=new , can't work , hangle on " Checking root filesystem
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/ubd/0 
fsck.ext3: Filesystem has unsupported feature(s) (/dev/ubd/0)
e2fsck: Get a newer version of e2fsck!
[FAILED]

*** An error occurred during the file system check.
*** Dropping you to a shell; the system will reboot
*** when you leave the shell.
Give root password for maintenance
(or type Control-D to continue): 

"

why ...., killed me.