[Original]/Var and/home are read-only file systems

Environment: Dell poweredge r905 server, centos 5.6 i386
 

 
Problem: After a server is cleaned, the file system becomes faulty./Var and/home become read-only file systems.
 

[Root @ NSC/] # DF-H file system capacity used available % mount point/dev/mapper/VolGroup_ID_14746-LogVol1 3.9g 1.3G 2.4g 35%/dev/mapper/VolGroup_ID_14746-LogVol2 3.9g 139 m 3.6g 4%/tmp/dev/mapper/VolGroup_ID_14746-LogVol5 540g 3.9g 508g 1%/usr/dev/sda3 190 m 22 159 M 13%/boot tmpfs 6.8G 0 6.8g 0%/dev/SHM /Dev/mapper/VolGroup_ID_14746-LogVolBak 807g 120g 647g 16%/bak  /Dev/mapper/VolGroup_ID_14746-LogVolHome 276G 22g 241g 9%/home/dev/mapper/VolGroup_ID_14746-LogVol4 7.6g 3.0g 4.3g 42%/var [Root @ NSC/] # rm/var/run/httpd. PIDRM: Do you want to delete the common file "/var/run/httpd. PID "? Yrm: "/var/run/httpd. PID" cannot be deleted: Read-Only File System [Root @ NSC/] # Mount-O remount, RW/var Mount: block Device/Dev/mapper/VolGroup_ID_14746-LogVol4Is write-protected, mounting read-only The same problem also occurs in the/home partition,/usr/bak normal -------------------------------------------------------------------------------- Solution: [Root @ NSC/] # mkdir/usr/varbackup [root @ NSC/] # Mount -- move/var/usr/varbackup [root @ NSC/] # rm-RF/var [root @ NSC/] # cd/[root @ NSC/] # mkdir-P/bak/var [root @ NSC/] # ln-S/bak/var [root @ NSC/] # cp-r/usr/varbackup/*/var/same method/home [root @ NSC/] # mkdir/usr/homebackup [root @ NSC /] # Mount -- move/home/usr/homebackup [root @ NSC/] # rm-RF/home [root @ NSC/] # cd/[root @ NSC/] # mkdir-P/bak/home [root @ NSC/] # ln-S/bak/var/home [root @ NSC/] # cp-r/usr/homebackup /*/ home Modification /Etc/fstab : [Root @ NSC/] # Cat/etc/fstab/dev/volgroup_id_14746/logvol1/ext3 defaults 1 1/dev/volgroup_id_14746/logvol2/tmp ext3 defaults 1 2 /Dev/volgroup_id_14746/logvolbak/bak ext3 defaults 1 2/dev/volgroup_id_14746/logvol5/usr ext3 defaults 1 2 Label =/boot ext3 defaults 1 2 tmpfs/dev/SHM tmpfs defaults 0 0 devpts/dev/PTS devpts gid = 5, mode = 620 0 0 sysfs/sys sysfs defaults 0 0 proc/proc defaults 0 0/dev/volgroup_id_14746/logvol0 swap defaults 0 0 #/Dev/volgroup_id_14746/logvolhome/home ext3 defaults 1 2/Dev/volgroup_id_14746/logvolhome/usr/homebackup ext3 defaults 1 2#/Dev/volgroup_id_14746/logvol4/var ext3 defaults 1 2/Dev/volgroup_id_14746/logvol4/usr/varbackup ext3 defaults 1 2 After the preceding operations are completed, reboot restarts the operating system. -------------------------------------------------------------------------------- Result:
 The system starts normally.

[Root @ NSC/] #DF-H File System capacity used available % mount point/dev/mapper/VolGroup_ID_14746-LogVol1 3.9g 1.3G 2.4g 35%/dev/mapper/VolGroup_ID_14746-LogVol2 3.9g 139 m 3.6g 4%/tmp/dev /mapper/VolGroup_ID_14746-LogVol5 540g 3.9g 508g 1%/usr/dev/sda3 190 m 22 m 159 M 13%/boot tmpfs 6.8G 0 6.8g 0%/dev/SHM /Dev/mapper/VolGroup_ID_14746-LogVolBak 807g 120g 647g 16%/bak  /Dev/mapper/VolGroup_ID_14746-LogVolHome 276G 22g 241g 9%/usr/homebackup/dev/mapper/VolGroup_ID_14746-LogVol4 7.6g 3.0g 4.3g 42%/usr/varbackup [Root @ NSC/] # llTotal 1966drwxr-xr-x 27 Root 4096 06-10 bakdrwxr-XR-x 2 root Root 4096 2010-01-20 bindrwxr-XR-x 4 Root 1024 03-10 06:11 bootdrwxr-XR-x 12 Root root 4980 06-10 devdrwxr-XR-X 107 Root 12288 06-10 etc Lrwxrwxrwx 1 Root 9 06-10 Home -> /Bak/home  Drwxr-XR-x 2 root Root 4096 2006-10-10 mntdrwxr-XR-x 6 Root 4096 05-03 optdr-XR-x 336 Root 0 06-10 procdrwxr- X --- 33 Root 4096 06-10 rootdrwxr-XR-x 2 root Root 12288 2010-01-20 sbindrwxr-XR-x 12 Root 0 06-10 45 sysdrwxrwxrwt 15 Root 4096 06- 10 06:42 tmpdrwxr-XR-x 20 Root 4096 06-10 06:35 USR Lrwxrwxrwx 1 Root 8 06-10VaR -> /Bak/var