QStorageInfo in read only rootfs

Jignesh Patel

Hi,

I am using qt revision 5.7.1 on my debian strech system. I have mounted my rootfs as read only ,I have used QStorageInfo to check my SD card size.

After mounting rootfs as read only i am getting only root directory in QStorageInfo mountedvolumes.

Below is the source code to get storage list:

foreach (const QStorageInfo &storage, QStorageInfo::mountedVolumes()) {
    if (storage.isValid() && storage.isReady())
        {
            qDebug() << "storage path" << storage.rootPath();
            qDebug()  << "storage name" << storage.name();
            qDebug()  << "storage readonly" << storage.isReadOnly();
            qDebug()  << "storage filesystem type " << storage.fileSystemType();
            qDebug()  << "storage device " << storage.device();
    }
}

output of above source :
storage path "/"
storage name ""
storage readonly true
storage filesystem type ""
storage device ""

my /etc/fstab file contain:

/dev/mmcblk0p1 / ext4 ro,noatime 0 1
mount_overlay /var fuse nofail,defaults 0 0
mount_overlay /home fuse nofail,defaults 0 0
mount_overlay /etc fuse nofail,defaults 0 0
none /tmp tmpfs defaults 0 0

If I mount rootfs as "rw" QStorageInfo works fine.

Please help me understand issue QStorageInfo with readonly rootfs.

Thanks,
Jignesh Patel