boot nios2 linux kernel fail

[Altera_Forum]

hi all: 

 Why I run nios2 linux kernel fail When I use "nios2-download -g zImage" or "nios2-download -g vmlinux"?  Who can give me some advice?Thanks a lot  The follow is some of the fail informations:   vmlinux: (error) Altera Nios II support © 2004 Microtronix Datacom Ltd. Built 1 zonelists Kernel command line: PID hash table entries: 128 (order: 7, 2048 bytes) Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory available: 14928k/16384k RAM, 0k/0k ROM (739k kernel code, 547k data) Mount-cache hash table entries: 512 Kernel panic - not syncing: crc error   Altera Nios II support © 2004 Microtronix Datacom Ltd. Built 1 zonelists Kernel command line: PID hash table entries: 128 (order: 7, 2048 bytes) Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory available: 14928k/16384k RAM, 0k/0k ROM (739k kernel code, 547k data) Mount-cache hash table entries: 512 Kernel panic - not syncing: broken padding   zImage:(error)# Uncompressing Linux... ERROR crc error   -- System halted     uClinux/Nios II Altera Nios II support © 2004 Microtronix Datacom Ltd. Built 1 zonelists Kernel command line: PID hash table entries: 128 (order: 7, 2048 bytes) Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory available: 14928k/16384k RAM, 0k/0k ROM (739k kernel code, 547k data) Mount-cache hash table entries: 512 Kernel panic - not syncing: junk in compressed archive

[Altera_Forum]

Check kernel usr/initramfs_list, 

Try remove old rootfs and rebuild kernel.  rm -rf ~/rootfs cp -a ~/buildroot/build_nios2/root ~/rootfs cd ~/rootfs# remove include and lib to save space# the dev nodes are generated via ~/download/rootfs_list rm -rf dev usr/include usr/lib# you may use this instead of the one from buildroot cp ~/download/inittab etc# check rootfs size du ~/rootfs

[Altera_Forum]

I do it follow hippo's advice. 

It seems resultful. But I will still test more.