On Tue, Oct 29, 2024 at 10:02 AM Jia Lin <jia89...@gmail.com> wrote:

> On 2024/10/26 05:27:35 Xiang Xiao wrote:
> > have you enable CONFIG_GPT_PARTITION or CONFIG_MBR_PARTITION and
> > call parse_block_partition:
> >
>
> https://github.com/apache/nuttx/blob/master/include/nuttx/fs/partition.h#L81
> > to register partitions as block devices again, so you can mount the
> > different file systems on these new block devices.
> >
> > Thanks
> > Xiang
> >
> > On Sat, Oct 26, 2024 at 4:51 AM Matteo Golin <ma...@gmail.com> wrote:
> >
> > > I got my hands on a SPI SD card adapter and managed to try out SD/MMC
> > > support for it through NuttX on my Pico. FAT file
> > > systems worked with no problem, and after a little configuring I
> managed
> > > to get littlefs going as well.
> > >
> > > Now I'm wondering if NuttX has support for multiple partitions on the
> same
> > > device; I'm hoping I can take a 32GB micro-SD
> > > card and have 16GB be littlefs and 16GB be vfat. I haven't been able to
> > > find any documentation about this though, and
> > > after formatting my SD card to have two vfat partitions I can see that
> > > NuttX is only able to mount the first one.
> > >
> > > I managed briefly to get both partitions on one card by first
> formatting
> > > the card as littlefs, then using fdisk on my
> > > host computer to add a vfat partition starting halfway through the
> card,
> > > and then was able to mount both on NuttX as two
> > > distinct file systems. Unfortunately after putting files on them,
> > > rebooting NuttX and trying to remount, the vfat
> > > partition was corrupted.
> > >
> > > Has anyone managed to get multiple partitions to work? How would I go
> > > about it?
> > >
> > > Matteo
> > >
> >
>
> Hello everyone,
>
> I work with Matteo on CUInspace and am currently trying to get Nuttx to
> recognize two partitions on a SD card. Currently I'm a little confused on
> how to use / implement parse_block_partition. I did find a previous thread
> on a similar subject (
> https://lists.apache.org/thread/q19rdvst6k687s4v045q362j68r2so1t
> <(https://lists.apache.org/thread/q19rdvst6k687s4v045q362j68r2so1t>), but
> I
> am a bit lost trying to follow the code, specifically on where would be the
> best place to call parse_block_partition. If anyone has any experience with
> mounting an SD card with multiple partitions any help would be appreciated!
>
>
If the card is inserted physically, you can call parse_block_partition in
board initialization like:
https://github.com/apache/nuttx/blob/master/boards/risc-v/mpfs/common/src/mpfs_emmcsd.c#L74
if the card is inserted dynamically, you may need insert the call in
automount:
https://github.com/apache/nuttx/blob/master/fs/mount/fs_automount.c



> Thanks,
> Tony
>

Reply via email to