> Second, I am having trouble figuring out the right way to install the
> root filesystem. The best I have been able to figure out is:
>
> 1. Build a squashfs image.
>
> 2. Create ubi.conf:
>
> [root_volume]
> mode=ubi
> image=lede-ar71xx-mikrotik-root.squashfs
> vol_id=0
> vol_name=rootfs
> vol_size=50MiB
>
> 3. Run "ubinize -vv -o root.img -m 2048 -p 128KiB -s 2048 ubi.conf".
>
> 4. Run "ubiformat /dev/mtd6 -f root.img".
>
> This sees to work. However, with OpenWrt I could simply mount
> /dev/mtdblock6 and extract openwrt-ar71xx-mikrotik-Ath5k-rootfs.tar.gz
> into the disk. This would result in a r/w yaffs rather than a read-only
> squashfs. The RouterBoard 493G has plenty of flash, so a writable root
> filesystem is both feasible and convenient (writes are very rare).
A quick update: I now use ubifs instead of squashfs to create a writable
filesystem.
Would it be possible to add to the LEDE build process the ability to
create a ubifs target image in addition to ext4 and squashfs?
Also, during earlier work I found that selecting the "ext4" target
image does not work. After I selected "ext4," "make V=99" simply did not
create an ext4 image, nor did the kernel build with ext4 support. Is
this expected?
After extracting the .tar.gz filesystem archive to /tmp/root, I run this
on my computer:
mkfs.ubifs -x none -m 2048 -e 126976 -c 240 -r /tmp/root -o
/tmp/lede-ar71xx-mikrotik-root.ubifs
Then I run this on the router:
ubi.conf:
[root_volume]
mode=ubi
image=/tmp/lede-ar71xx-mikrotik-root.ubifs
vol_id=0
vol_name=rootfs
vol_size=50MiB
ubinize -vv -o lede-ar71xx-mikrotik-root.ubi -m 2048 -p 128KiB
-s 2048 ubi.conf
ubidetach -p /dev/mtd6
ubiformat /dev/mtd6 -f lede-ar71xx-mikrotik-root.ubi
--
Mike
:wq
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