gcc 를 yum으로 인스톨하던중 에러가 났습니다.

Running Transaction
  Installing: libgcc                      ######################### [1/9]
error: unpacking of archive failed on file /usr/sbin/libgcc_post_upgrade;48aa208b: cpio: open

보니까 해당 폴더뿐만아니라 시스템의 대부분의 폴더 ( home을 제외한 )가 쓰기가 안되었습니다. 복사, 이동, 삭제 모두 안되는것이지요 , 검색을 해보니 mount 관련인듯도 싶은데 이쪽에 지식이 없는지라 ㅡㅜ 아시는분 있으시면 도움좀 바래요~

혹시나 해서 마운트 정보도 남겨요
# mount -l
/dev/sda2 on / type ext3 (rw) [/]
none on /proc type proc (rw)
none on /sys type sysfs (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
usbfs on /proc/bus/usb type usbfs (rw)
/dev/sda1 on /boot type ext3 (rw) [/boot]
/dev/sdb1 on /data type ext3 (rw) [/data1]
none on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)

root 계정으로 모든 파일에 대해 chmod, chcon, cp, mv, rm 등등 퍼미션 디나이드가 나버리는 문제입니다. 하지만 /home안의 파일들은 정상적으로 써집니다. 때문에 웹서버도 문제없이 동작하구요 혹 selinux 문제인가 해서 setenforce 0 도 해봤지만 소용없습니다. 다음은 sestatus -v 결과입니다.
SELinux status:        enabled
SELinuxfs mount:        /selinux
Current mode:          permissive
Mode from config file:  disabled
Policy version:        18
Policy from config file:targeted

Policy booleans:
allow_syslog_to_console inactive
allow_ypbind            inactive
dhcpd_disable_trans    inactive
httpd_builtin_scripting active
httpd_disable_trans    inactive
httpd_enable_cgi        active
httpd_enable_homedirs  active
httpd_ssi_exec          active
httpd_tty_comm          inactive
httpd_unified          active
mysqld_disable_trans    inactive
named_disable_trans    inactive
named_write_master_zonesinactive
nscd_disable_trans      inactive
ntpd_disable_trans      inactive
pegasus_disable_trans  inactive
portmap_disable_trans  inactive
postgresql_disable_transinactive
snmpd_disable_trans    inactive
squid_disable_trans    inactive
syslogd_disable_trans  inactive
use_nfs_home_dirs      inactive
use_samba_home_dirs    inactive
use_syslogng            inactive
winbind_disable_trans  inactive
ypbind_disable_trans    inactive

Process contexts:
Current context:        root:system_r:unconfined_t
Init context:          user_u:system_r:unconfined_t
/sbin/mingetty          user_u:system_r:unconfined_t
/usr/sbin/sshd          user_u:system_r:initrc_t

File contexts:
Controlling term:      root:object_r:initrc_devpts_t
/etc/passwd            system_u:object_r:etc_t
/etc/shadow            system_u:object_r:shadow_t
/bin/bash              system_u:object_r:shell_exec_t
/bin/login              system_u:object_r:bin_t
/bin/sh                system_u:object_r:bin_t -> system_u:object_r:shell_exec_t
/sbin/agetty            system_u:object_r:sbin_t
/sbin/init              system_u:object_r:init_exec_t
/sbin/mingetty          system_u:object_r:sbin_t
/usr/sbin/sshd          system_u:object_r:sbin_t
/lib/libc.so.6          system_u:object_r:lib_t -> system_u:object_r:shlib_t
/lib/ld-linux.so.2      system_u:object_r:lib_t -> system_u:object_r:ld_so_t