Thread: u-boot for the RX-51 (N900)
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Fabry is offline Fabry
2011-09-26 , 22:01
Posts: 362 | Thanked: 426 times | Joined on Nov 2010 @ Italy, Lombardia
#80
Originally Posted by mirakels View Post
I guess it must be possible to build a cpio formatted ramdisk and let the kernel do the proper ramdisk filesystem handling. After all it is able to use the internal maemo flash rootfs as a root filesystem without preloading any filesystem drivers.
But Cpio does not involve the use of EXT2 ?
Cpio Is just a archive format, but when the kernel, during boot process, decompresses the cpio image on ramfs does not try to use EXT2 ?
And without ext2/3/4 available which happens ?

RootFS is UBIFS and UBIFS is statically compiled on kernel
It is not possible to make a ramdisk with ubifs because UbiFs needs a Nand (or NandSim) under the hood

CramFS is available on Maemo and since I not see a module for it, I suppose that is present in the kernel itself.
So a cramfs initrd is teorically bootable.
Last edited by Fabry; 2011-09-26 at 22:10.