how to build ext2 rootfs in EP2C35 (dev kit)

Altera_Forum · ‎03-09-2006

I would like to use a ext2 fs instead of a romfs for my rootfs

I tried genext2fs, but it doesn't work. (pb with device file ??).

When I boot , I have the followin message :

"Freeing unused kernel memory: 60k freed (0x413c000 - 0x414a000)

EXT2-fs error (device mtdblock0): ext2_check_page: bad entry in directory# 2: re

c_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0"

Thanks

Laurent

PS : My board is the NIOSII EP2C35( altera DEV KIT ) .

I tried jffs2 fs ( with mkfs.jffs2) and it doesn't work.

Altera_Forum · ‎03-09-2006

Ext2 takes a lot of space, and you should not use it on flash.

You should use the newer initramfs to replace romfs. Follow the link to build tools/kernel/apps.

Altera_Forum · ‎03-09-2006

Can I create initramfs easily with cygwin and Nios2 IDE ( version 5.0) ??

Laurent

Altera_Forum · ‎03-10-2006

Hi grassay,

You'd better do it on Linux. Jdhar and I had tried a lot on Windows/cygwin, but failed. Unless you are too bored, do'nt try it on Windows again.