Hi All,

I have very sucessfully installed OpenWrt 8.09 Kamikaze (r14417) and installed a SD/MMC card, but when I reboot the router all is lost, here is what I have done.

1. Installed the mmc.o for GPI02 Module to /lib/modules/2.4.35.4
2. echo 0x9c > /proc/diag/gpiomask
3. insmod mmc
4. dmesg gives me the following.

[INFO] mmc_hardware_init: initializing GPIOs
[INFO] mmc_card_init: the period of a 380KHz frequency lasts 524 CPU cycles
[INFO] mmc_card_init: powering card on. sending 80 CLK
[INFO] mmc_card_init: 80 CLK sent in 43646 CPU cycles
[INFO] mmc_card_init: resetting card (CMD0)
[INFO] mmc_card_init: doing initialization loop
[INFO] mmc_card_init: card inited successfully in 663 tries (20453423 CPU cycles).
[INFO] mmc_init: MMC/SD Card ID:
03 53 44 53 55 30 32 47 80 00 e3 a7 61 00 93 7b [INFO] Manufacturer ID : 03
[INFO] OEM/Application ID: SD
[INFO] Product name : SU02G
[INFO] Product revision : 8.0
[INFO] Product SN : 00e3a761
[INFO] Product Date : 2009-3
[INFO] mmc_card_config: size = 1931264, hardsectsize = 1024, sectors = 1931264
[WARN] mmc_init: hd_sizes=1931264, hd[0].nr_sects=3862528
[INFO] mmc_card_init: set_blocklen (CMD16) succeeded !
Partition check:
mmca: p1

5. opkg install e2fsprogs
6. mkfs.ext3 /dev/mmc/disc0/part1

Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
241440 inodes, 482311 blocks
24115 blocks (5.00%) reserved for the super user
First data block=0
15 block groups
32768 blocks per group, 32768 fragments per group
16096 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912

Writing inode tables: done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 25 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

7. opkg install kmod-fs-ext3
8. mount -t ext3 /dev/mmc/disc0/part1 /mnt/
9. df -h

Filesystem                Size      Used Available Use% Mounted on
rootfs                    1.6M      1.6M         0 100% /
/dev/root                 1.6M      1.6M         0 100% /rom
tmpfs                     7.0M     48.0k      7.0M   1% /tmp
/dev/mtdblock/4           1.7M    888.0k    840.0k  51% /jffs
mini_fo:/jffs             1.6M      1.6M         0 100% /
/dev/mmc/disc0/part1      1.8G     34.8M      1.7G   2% /mnt

I can now write or create whatever I want, in "mnt" which is my SD/MMC Card

------ Here is the strange part -------

1a. When I go "mount -t ext3 /dev/mmc/disc0/part1 /mnt/" the power LED keep flashing why is this?.
2b. The next is that this does not survive a reboot how can I fix this.

(Last edited by newboy on 1 Jun 2009, 03:41)

1a. When I go "mount -t ext3 /dev/mmc/disc0/part1 /mnt/" the power LED keep flashing why is this?.

I think mine has this problem too, but the router appears to be functioning normally otherwise....

2b. The next is that this does not survive a reboot how can I fix this.

You need to do two things in order to have the mmc mounted during boot:

a) create a script to load the mmc module during boot in /etc/modules.d, a text file with mmc in it named something like 30-mmc
b) add an entry in /etc/config/fstab to mount the file system

Hi Coolbird,

Good to hear I am not the only one.

Could you please elaborate or tell me exactly what I need to do in a couple of steps as I am a total noob and dont know exactly what I should be doing, greatly appriciate your help.

(Last edited by newboy on 5 Jun 2009, 04:56)

Actually 3 steps:

1. Go to /etc/init.d directory, open up a file named "boot" in vi editor, the last line of this file is "load_modules /etc/modules.d/*", you need to put a line with text "echo 0x9c > /proc/diag/gpiomask" above the load_modules line, save the file and exit vi, assuming you know how to use vi.

2. Go to /etc/modules.d directory, there are a whole bunch files in this directory, if you view the contents of any file, it only has a line or two with the name of the module(s) that needed to be loaded during boot up. Now use vi to create a new file, I named it "30-mmc", put text "mmc" in this file, save and quit vi.

3. Go to /etc/config directory, open file named "fstab" with vi, add the following block of text to the file, save and quit vi.

config mount
        option target   /mnt/sd
        option device   /dev/mmc/disc0/part1
        option fstype   ext3
        option options  defaults
        option enabled  1

for my router, I use ext3 file system, and mount point is /mnt/sd. If you mount to /mnt directory, with a different file system, you need to change the above test accordingly. If you you decided mount to a different mount point other than /mnt, you need to create the directory manually, for me, I had to create the sd directory by running "mkdir /mnt/sd"

After you done all above, reboot your router and the sd card should be mounted.

Coolbird

You beauty, thanks a lot pal, just to think that I was struggling for weeks to do this. Wonder if we could make this a sticky in the wiki.

Just another question I want to install Asterisk on the SD card too, and this too I struggled like mad to get it started at bootup would you know what I would have to do to get it to start in the same way?.

I had all kind of problems on starting the programs installed in mmc/sd, I did a lot of googlings and asked the question here but no resolution. I ended up giving up on it and upgrade my wrt54g to a 16MB flash chip (hard moded) and installed all the programs to the flash chip and everything is ok now. I am current running tinyproxy, dansguardian, asterisk, along with qos-scripts. My unit has the 64M ram mod also....

Looks like I am having the same issue as well, how did you do these mods & what parts did you use?.