Hi, Yes, I did this a while ago. I have an hx4700 that can boot from internal NAND, SD (GPE) and SD (Opie). I did this by adding a CompactFlash card, only for the bootloader, and the main partitions were on a 4Gb SD-HC card. With this technique, I didn't need to patch the SDG bootloader. Do you want me to root through my files?
James A. Langbridge Packetfury.net -- The urgent is done, the impossible ongoing. For miracles, expect a small delay. On 29 June 2012 16:19, wiseLYNX <wiselynx.na...@fastwebnet.it> wrote: > hello everybody, > > my struggle to get my hx4700 in shape still goes on.. > > now I'd want to have its root filesystem on an SD card, while booting > from SDG bootloader, for two reasons: > - most images are quite bigger that what the internal NAND could store > - while I'm experimenting, I'm reflashing the image over and over, and > it's a long, boring task; moreover, I'd really want to spare some write > cycles on the NAND, while an external SD card is expendable > > to do achieve that, I "hex-patched" the sdg bootloader so that it > assumes the root filesystem on /dev/mmcblk0p1 (ext2 formatted SD) > instead of /dev/mtdxxxx (can't remember the name, it's not important > now). This works quite well, but I get a kernel panic when it does try > to mount the root filesystem and it doesn't find it. > > I already tried adding the "rootwait" parameter to kernel, only to have > a nice message about waiting the root device to show up, which never > happens. > > I compiled everything I think is needed statically, which includes "MMC > block device driver" and "Toshiba Mobile IO controller (TMIO)" (if > helpful, I can send the kernel .config I'm using, I'm not sending it now > as I'm not sure it's ok with the mailing list policy). I can see in logs: > > mmc0: mmc_try_rescan_freq: trying to init card at 400000 Hz > mmc0 at 0xc4834800 irq 162 > > but it doesn't seem to "see" the partitions. > > Any hint? Anyone already did something similar? Is it even possible to > do what I'm trying to do? > > thank you very much everybody > > Enrico > > _______________________________________________ > Angstrom-distro-users mailing list > Angstrom-distro-users@linuxtogo.org > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-users > > _______________________________________________ Angstrom-distro-users mailing list Angstrom-distro-users@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-users
