[root@SERVER .ssh]# mount|grep -i  / /dev/mapper/rootvg-root_lv on / type ext3 (rw)[root@SERVER .ssh]# mount -o remount /mount: block device /dev/rootvg/root_lv is write-protected, mounting read-only[root@SERVER .ssh]# How can I make the / writable again without a reboot?[root@SERVER ~]# lsb_release -aLSB Version:    :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarchDistributor ID: RedHatEnterpriseServerDescription:    Red Hat Enterprise Linux Server release 5.4 (Tikanga)Release:    5.4Codename:   Tikanga[root@SERVER ~]# UPDATE:[root@SERVER ~]# lvdisplay rootvg/root_lv  Locking type -1 initialisation failed.[root@SERVER ~]# lvdisplay rootvg/root_lv --ignorelockingfailure  --- Logical volume ---  LV Name                /dev/rootvg/root_lv  VG Name                rootvg  LV UUID                2Cccd4-oGrx-ssQW-xzK5-MZuA-g4NS-tFDFpd  LV Write Access        read/write  LV Status              available  # open                 1  LV Size                2.00 GB  Current LE             64  Segments               1  Allocation             inherit  Read ahead sectors     auto  - currently set to     256  Block device           253:0[root@SERVER ~]# lvchange -p rw rootvg/root_lv  Locking type -1 initialisation failed.[root@SERVER ~]# [root@SERVER ~]# lvchange --ignorelockingfailure -p rw rootvg/root_lv  Only -a permitted with --ignorelockingfailure  Run `lvchange --help' for more information.[root@SERVER ~]# should I use the -a function?
How to switch / back to writable mode without reboot?
rhel;mount;readonly;root filesystem