nfs mounted root filesystem in read-only mode
Posted: 2019/08/16 18:30:48
I've been trying to get this working in centos 7 (works great in centos 6). Basically we pxe boot a cent6 kernel/initrd which then nfs mounts its root filesystem readonly from our management server. We use /etc/sysconfig/readonly-root and /etc/rwtab to control which files/directories will be remounted as read-write so the OS still functions properly.
Everything i've tried has failed. The issue seems to be around what contents i have in /etc/fstab. With no / entry the rhel-readonly service does nothing. If i put in the nfs mount entry that was used during pxe boot the systemd-remount-fs service fails.. then the rhel-readonly service runs for awhile before the system hangs.
Has anyone successfully used readonly root on cent7 with an nfs mounted root filesystem?
Thanks
Everything i've tried has failed. The issue seems to be around what contents i have in /etc/fstab. With no / entry the rhel-readonly service does nothing. If i put in the nfs mount entry that was used during pxe boot the systemd-remount-fs service fails.. then the rhel-readonly service runs for awhile before the system hangs.
Has anyone successfully used readonly root on cent7 with an nfs mounted root filesystem?
Thanks