Update cannot be installed after centos uses yum update Acceleration

After centos uses yum update acceleration, you cannot install updates-general Linux technology-Linux technology and application information. For more information, see the following. [Root @ CoentOS4 ~] # Cd/
[Root @ CoentOS4/] # yum update
Loading "fastestmirror" plugin
Setting up Update Process
Setting up repositories
Loading mirror speeds from cached hostfile
Reading repository metadata in from local files
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package seamonkey-nspr.i386. 0.9-7. el4.centos set to be updated
---> Package libxml2.i386. 6.16-10.1 set to be updated
---> Package lvm2.i386. 02.27-2. el4_6.1 set to be updated
---> Package python-devel.i386. 3.4-14.4.el4 _ 6.1 set to be updated
---> Package net-snmp-libs.i386. 1.2-11. el4_6.11.2 set to be updated
---> Package samba-common.i386 0: 3. 0.25b-1. el4_6.4 set to be updated
---> Package audit-libs.i386. 0.15-3. el4_6.1 set to be updated
---> Package audit. i386. 0.15-3. el4_6.1 set to be updated
---> Package kernel. i686. 6.9-67.0.1.EL set to be installed
---> Package seamonkey-nss.i386. 0.9-7. el4.centos set to be updated
---> Package pcre. i386 0: 4. 5-4.el4_6.6 set to be updated
---> Package python. i386 2. 3.4-14.4.el4 _ 6.1 set to be updated
---> Package util-linux.i386. 12a-17.el4_6.1 set to be updated
---> Package e2fsprogs. i386 0:1. 35-12.11.el4_6.1 set to be updated
---> Package tog-pegasus.i386. 5.1-5. el4_6.1 set to be updated
---> Package libxml2-devel.i386. 6.16-10.1 set to be updated
---> Package openldap-devel.i386. 2.13-8. el4_6.2 set to be updated
---> Package openldap. i386. 2.13-8. el4_6.2 set to be updated
---> Package tog-pegasus-devel.i386. 5.1-5. el4_6.1 set to be updated
---> Package tzdata. noarch 0: 2007k-1.el4 set to be updated
---> Package e2fsprogs-devel.i386. 35-12.11.el4_6.1 set to be updated
---> Package module-init-tools.i386 0: 3. 1-0.pre5.3.4.el4_6.1 set to be updated
---> Package gdb. i386. 3.0.0-1.153.el4 _ 6.1 set to be updated
---> Package samba-client.i386 0: 3. 0.25b-1. el4_6.4 set to be updated
---> Package libxml2-python.i386. 6.16-10.1 set to be updated
---> Package libexif. i386. 5.12-5.1.0.2.el4 _ 6.1 set to be updated
--> Running transaction check

Dependencies Resolved

========================================================== ============================================
Package Arch Version Repository Size
========================================================== ============================================
Installing:
Kernel i686 2.6.9-67.0.1.EL update 12 M
Updating:
Audit i386 1.0.15-3. el4_6.1 update 201 k
Audit-libs i386 1.0.15-3. el4_6.1 update 38 k
E2fsprogs i386 1.35-12.11.el4 _ 6.1 update 775 k
E2fsprogs-devel i386 1.35-12.11.el4 _ 6.1 update 487 k
Gdb i386 6.3.0.0-1.153.el4 _ 6.1 update 2.6 M
Libexif i386 0.5.12-5.1.0.2.el4 _ 6.1 update 73 k
Libxml2 i386 2.6.16-10.1 update 620 k
Libxml2-devel i386 2.6.16-10.1 update 1.8 M
Libxml2-python i386 2.6.16-10.1 update 440 k
Lvm2 i386 2.02.27-2. el4_6.1 update 2.0 M
Module-init-tools i386 3.1-0. pre5.3.4.el4 _ 6.1 update 348 k
Net-snmp-libs i386 5.1.2-11. el4_6.11.2 update 1.7 M openldap i386 2.2.13-8. el4_6.2 update 237 k
Openldap-devel i386 2.2.13-8. el4_6.2 update 1.3 M
Pcre i386 4.5-4. el4_6.6 update 59 k
Python i386 2.3.4-14.4.el4 _ 6.1 update 4.8 M
Python-devel i386 2.3.4-14.4.el4 _ 6.1 update 1.4 M
Samba-client i386 3.0.25b-1. el4_6.4 update 4.5 M
Samba-common i386 3.0.25b-1. el4_6.4 update 7.5 M
Seamonkey-nspr i386 1.0.9-7. el4.centos update 99 k
Seamonkey-nss i386 1.0.9-7. el4.centos update 744 k
Tog-pegasus i386. 5.1-5. el4_6.1 update 6.2 M
Tog-pegasus-devel i386. 5.1-5. el4_6.1 update 162 k
Tzdata noarch 2007k-1.el4 update 450 k
Util-linux i386 2.12a-17. el4_6.1 update 1.5 M

Transaction Summary
========================================================== ============================================
Install 1 Package (s)
Update 25 Package (s)
Remove 0 Package (s)
Total download size: 52 M
Is this OK [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Segment Error
[Root @ CoentOS4/] #