reverting to read-only mode

  • mount -o remount,ro /flash

    And how to check that it's read only?

    Here is what output after "mount -o remount,ro /flash" command:

    LibreELEC:~ # mount

    devtmpfs on /dev type devtmpfs (rw,relatime,size=376256k,nr_inodes=94064,mode=755)

    proc on /proc type proc (rw,relatime)

    sysfs on /sys type sysfs (rw,relatime)

    /dev/mmcblk0p1 on /flash type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)

    /dev/loop0 on / type squashfs (ro,relatime)

    /dev/mmcblk0p2 on /storage type ext4 (rw,noatime)

    tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)

    devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)

    tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)

    tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)

    cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)

    cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)

    bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)

    cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)

    cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)

    cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)

    cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)

    cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)

    cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)

    mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)

    debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)

    tmpfs on /var type tmpfs (rw,relatime)

    configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)

    tmpfs on /tmp type tmpfs (rw,nosuid,nodev)

    LibreELEC:~ #

    Edited once, last by rulet (January 26, 2021 at 9:01 AM).

  • Check for "ro" or "rw" options in mount output.

    Quote

    /dev/mmcblk0p1 on /flash type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)

    /dev/mmcblk0p2 on /storage type ext4 (rw,noatime)

    so long,

    Hias