Hello,
I have prepared an auto-configuration scritp that allows to create all the partitions needed on my Digi Connect ME 9210:
Nr | Name | Start | Size | Type | FS | Flags
-----------------------------------------------------------------------
0 | U-Boot | 0 | 192 KiB | U-Boot | | fixed
1 | NVRAM | 192 KiB | 128 KiB | NVRAM | | fixed
2 | Kernel | 320 KiB | 1152 KiB | Linux-Kernel | |
3 | RootFS | 1472 KiB | 1 MiB | Filesystem | SQUASHFS | rootfs
4 | UserFS | 2496 KiB | 1600 KiB | Filesystem | JFFS2 |
My scritp assumes that by default the system is configured only with U-Boot and NVRAM partitions and it works properly.
Recently we have received devices with a different default partition table:
Nr | Name | Start | Size | Type | FS | Flags
-----------------------------------------------------------------------
0 | U-Boot | 0 | 192 KiB | U-Boot | | fixed
1 | NVRAM | 192 KiB | 128 KiB | NVRAM | | fixed
2 | Kernel | 320 KiB | 1280 KiB | Linux-Kernel | |
3 | RootFS | 1600 KiB | 1536 KiB | Filesystem | SQUASHFS | rootfs
4 | UserFS | 3136 KiB | 960 KiB | Filesystem | JFFS2 |
Therefore, after the execution of my script the result is:
Nr | Name | Start | Size | Type | FS | Flags
-----------------------------------------------------------------------
0 | U-Boot | 0 | 192 KiB | U-Boot | | fixed
1 | NVRAM | 192 KiB | 128 KiB | NVRAM | | fixed
2 | Kernel | 320 KiB | 1280 KiB | Linux-Kernel | |
3 | RootFS | 1600 KiB | 1536 KiB | Filesystem | SQUASHFS | rootfs
4 | UserFS | 3136 KiB | 960 KiB | Filesystem | JFFS2 |
5 | Kernel | 320 KiB | 1152 KiB | Linux-Kernel | |
6 | RootFS | 1472 KiB | 1 MiB | Filesystem | SQUASHFS | rootfs
7 | UserFS | 2496 KiB | 1600 KiB | Filesystem | JFFS2 |
There are two Linux-Kernel partitions, 2 SQUASHFS partitions and 2 JFFS2 partitions.
In this situation, my application loaded in JFFS2 partition, seems to work the same. Could it be possible?
What can be happen with a wrong partition table as the last described?
How can modify the auto-configuration script in order to detect and delete all unwanted partition at the beginning?
Below the scritp:
intnvram set partition add name=Kernel chip=0 start=0x50000 size=0x120000 type=Linux-Kernel flag_fixed=0 flag_readonly=0
intnvram set partition add name=RootFS chip=0 start=0x170000 size=0x100000 type=Filesystem flag_fixed=0 flag_readonly=0 flag_fs_type=SQUASHFS flag_fs_root=1 flag_fs_mount_readonly=0
intnvram set partition add name=UserFS chip=0 start=0x270000 size=0x190000 type=Filesystem flag_fixed=0 flag_readonly=0 flag_fs_type=JFFS2 flag_fs_root=0 flag_fs_mount_readonly=0
erase_pt UserFS
setenv loadbootsc no
update linux
update rootfs
update userfs tftp userfs.jffs2
setenv bootcmd dboot linux flash
setenv start_app /tmp/mnt/UserFS/boot.sh
setenv console console=none
setenv dhcp on
saveenv
reset
Thanks in advance,
Paolo