Messages in this thread | | | Date | Fri, 15 Jun 2001 21:16:04 +0400 | From | Alexandr Andreev <> | Subject | Re: Using cramfs as root filesystem on diskless machine |
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Hi, David. David Woodhouse wrote:
>Where does the bootloader get the initrd from? > Bootloader only jumps to the kernel entry point. The initrd image is compiled inside the kernel. ( special section in the ELF kernel binary ) .config: ... CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192 CONFIG_BLK_DEV_INITRD=y ... If 'root=/dev/ram' option is set in command line, the root file system will bi in RAM. When the linux kernel is booting, it tries to identify_ramdisk_image() ( at drivers/block/rd.c ). So it can only understand ext2, minix, romfs, and gzipped images. But what about cramfs? How can i use a cramfs image to mount it as my root file system? Is any patches to the rd.c requiried?
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