livecd环境下chroot修复系统

lrwxrwxrwx 1 root root 11 Mar  5 10:30 /lib64/libc.so.6 -> libc-2.5.so

mount -t ext4 /dev/sda1 /mnt/backup
mount -o bind /dev /mnt/backup/dev
mount -o bind /proc /mnt/backup/proc
mount -o bind /sys /mnt/backup/sys
chroot /mnt/backup

rpm -qa |grep glibc
glibc-2.5-65.el5_7.1
glibc-headers-2.5-65.el5_7.1
glibc-devel-2.5-65.el5_7.1
glibc-devel-2.5-65.el5_7.1
glibc-common-2.5-65.el5_7.1
glibc-2.5-65.el5_7.1

rpm -ql glibc-2.5-65.el5_7.1|grep libc-2.5.so
/lib64/libc-2.5.so
/lib/i686/nosegneg/libc-2.5.so
/lib/libc-2.5.so

rpm2cpio glibc-2.5-123.el5_11.1.x86_64.rpm |cpio -div