Wolfgang Denk wrote:
There is a hard limitation in u-boot, causing "bootm" command to silently fail gunzip with images having an uncompressed size of > 4Mb.
This has NOTHING to do with ramdisk sizes.
U-Boot does not uncompress ramdisk images, this is done by the Linux kernel. U-Boot just (loads and) passes the address of the ramdisk image to the Linux kernel without touching the data at all.
The ugly fix would be to just increase this value (like I did).
No such change is needed (unless you end up with a Linux kernel that does not fit in 4 MB any more).
Well, this is probably true in more sane cases, but when using embedded ramdisk image (available for both mips and ppc I believe), the 4Mb u-boot limit can indeed cause problems.
Yes I know everyone's supposed to upgrade to 2.6 and initramfs.
/ Leif