On Wed, Oct 30, 2024 at 11:33 AM Matteo Golin <matteo.go...@gmail.com> wrote:
> Hi Alan, > > This makes sense, but I guess the SD card must be formatted in advance for > the "parse_block_partition" to detect and register the partitions as > "/dev/mmcsd0p0" and "/dev/mmcsd0p1"? In my use case I was hoping to have > this work on a blank SD card. > > I was hoping to format a completely unformatted SD card into two partitions > in NuttX (when the first time the system is booted with a fresh SD). you can issue mkgpt or mkmbr from nsh: https://github.com/apache/nuttx-apps/tree/master/fsutils/mkgpt https://github.com/apache/nuttx-apps/tree/master/fsutils/mkmbr > I've > only seen it done with the forceformat option to nx_mount(), but I think > that will always format the entire block device (unless called on the > individual partition itself like mmcsd0p0, but then it's chicken before the > egg scenario). I don't suppose NuttX has any other formatting API that I'm > missing? > > The partition format can be done by a userspace program like aboving, that's why nuttx kernel only contains the parse code, not format code. > Thank you for all your help, > > Matteo > > On Tue, Oct 29, 2024, 5:46 PM Alan C. Assis <acas...@gmail.com> wrote: > > > Hi Matteo, > > > > If the /dev/mmc0pX were created you can format it from the NSH> command > > line. > > > > BR, > > > > Alan > > > > On Tue, Oct 29, 2024 at 6:17 PM Matteo Golin <matteo.go...@gmail.com> > > wrote: > > > > > While we try to get that working, this would require that the SD card > be > > > formatted in advance, right? I would imagine we could possibly > pre-format > > > two FAT partitions, load both partitions and then re-format one of them > > to > > > be littlefs (since littlefs formatting from a host computer is > > non-trivial > > > as far as I'm aware). Since we want 1 littlefs and 1 FAT partition. > Does > > > NuttX have a better way to format an SD into two partitions via an > > internal > > > API, similar to how you can call `nx_mount` with "forceformat" to > > re-format > > > an entire block device? > > > > > > Thank you so much for your help, > > > Matteo > > > > > > On Tue, Oct 29, 2024 at 12:45 AM Xiang Xiao <xiaoxiang781...@gmail.com > > > > > wrote: > > > > > > > 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 > > > > > > > > > > > > > > > On Wed, Oct 30, 2024 at 11:33 AM Matteo Golin <matteo.go...@gmail.com> wrote: > Hi Alan, > > This makes sense, but I guess the SD card must be formatted in advance for > the "parse_block_partition" to detect and register the partitions as > "/dev/mmcsd0p0" and "/dev/mmcsd0p1"? In my use case I was hoping to have > this work on a blank SD card. > > I was hoping to format a completely unformatted SD card into two partitions > in NuttX (when the first time the system is booted with a fresh SD). I've > only seen it done with the forceformat option to nx_mount(), but I think > that will always format the entire block device (unless called on the > individual partition itself like mmcsd0p0, but then it's chicken before the > egg scenario). I don't suppose NuttX has any other formatting API that I'm > missing? > > Thank you for all your help, > > Matteo > > On Tue, Oct 29, 2024, 5:46 PM Alan C. Assis <acas...@gmail.com> wrote: > > > Hi Matteo, > > > > If the /dev/mmc0pX were created you can format it from the NSH> command > > line. > > > > BR, > > > > Alan > > > > On Tue, Oct 29, 2024 at 6:17 PM Matteo Golin <matteo.go...@gmail.com> > > wrote: > > > > > While we try to get that working, this would require that the SD card > be > > > formatted in advance, right? I would imagine we could possibly > pre-format > > > two FAT partitions, load both partitions and then re-format one of them > > to > > > be littlefs (since littlefs formatting from a host computer is > > non-trivial > > > as far as I'm aware). Since we want 1 littlefs and 1 FAT partition. > Does > > > NuttX have a better way to format an SD into two partitions via an > > internal > > > API, similar to how you can call `nx_mount` with "forceformat" to > > re-format > > > an entire block device? > > > > > > Thank you so much for your help, > > > Matteo > > > > > > On Tue, Oct 29, 2024 at 12:45 AM Xiang Xiao <xiaoxiang781...@gmail.com > > > > > wrote: > > > > > > > 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 > > > > > > > > > > > > > > >
