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编译完新内核reboot

原内核rh9自带的2.4.20
  新内核2.4.20 patched to 2.4.21-pre6 (patch -p1   就一个/和一个swap分区
  /分区用的是reiserfs s
  以新的内核重启后,发现以下几个明显错误,例如数个/dev/tty1,/dev/tty2找不到文件.最关键的是最后显示的reiserfsck could not open filesystem on /dev/db3
  fsck.reiserfs for device exited with signal 6
  我已经将reiserfs编译入内核中,并非模块化.请问会是什么问题?在线等.附上我的config,/etc/grub.conf,/etc/fstab
  注:硬盘没有坏道.
  root@localhost root]# cat /etc/fstab
  /dev/hdb3 / reiserfs defaults 1 1
  none /dev/pts devpts gid=5,mode=620 0 0
  none /proc proc defaults 0 0
  none /dev/shm tmpfs defaults 0 0
  /dev/hdb4 swap swap defaults 0 0
  /etc/grub.con
  # Note that you do not have to rerun grub after making changes to this ile
  # NOTICE: You do not have a /boot partition. This means tat
  # all kernel and initrd paths are relative to /, eg.
  # root (hd1,2)
  # kernel /boot/vmlinuz-version ro root=/dev/db3
  # initrd /boot/initrd-version.img
  #boot=/dev/da
  default=1
  timeout=10
  splashimage=(hd1,2)/boot/grub/splash.xpm.gz
  title Red Hat Linux (2.4.21-pre6)
  root (hd1,2)
  kernel /boot/vmlinuz-2.4.21-pre6 ro root=/dev/hdb3 hdc=ide-scsi hdd=ide-scsi
  initrd /boot/initrd-2.4.21-pre6.img
  title Red Hat Linux (2.4.20-8)
  root (hd1,2)
  kernel /boot/vmlinuz-2.4.20-8 ro root=/dev/hdb3 hdc=ide-scsi hdd=ide-scsi
  initrd /boot/initrd-2.4.20-8.img
  title DOS
  rootnoverify (hd0,0)
  chainloader +1