Hi All,
I am using u-boot 1.2.0 and tried to boot kernel with one ramdisk, but it seems the u-boot doesn't load my ramdisk image at all. Please view the below log message for detailed informations.
=> tftpboot a0800000 uRamdisk => iminfo a0800000 ## Checking Image at a0800000 ... Image Name: Test Ramdisk Image Created: 2008-12-17 11:43:47 UTC Image Type: MIPS Linux RAMDisk Image (gzip compressed) Data Size: 3824687 Bytes = 3.6 MB Load Address: 82010000 Entry Point: 82010000 Verifying Checksum ... OK => bootm bfc60000 a0800000 ## Booting image at bfc60000 ... Image Name: MIPS OpenWrt Linux-2.6.21.7 Created: 2008-12-16 19:55:08 UTC Image Type: MIPS Linux Kernel Image (gzip compressed) Data Size: 1172251 Bytes = 1.1 MB Load Address: 80010000 Entry Point: 80262000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Loading Ramdisk Image at a0800000 ... Image Name: Test Ramdisk Image Created: 2008-12-17 11:21:06 UTC Image Type: MIPS Linux RAMDisk Image (gzip compressed) Data Size: 3824687 Bytes = 3.6 MB Load Address: 82010000 Entry Point: 82010000 Verifying Checksum ... OK /* COMMENT ADDED BY MIKE, boot loader hasn't loaded RAMDISK since no "Loading Ramdisk to..." output...... */
Starting kernel ...
LINUX started... ... No filesystem could mount root, tried: cramfs squashfs romfs Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
Are there any special requirement of the ramdisk format for u-boot? I used mips mkimage command as below and both of the ramdisk.gz in ext2 or cramfs format are all failed. mkimage -O linux -A mips -T ramdisk -C gzip -n 'Test Ramdisk Image' -d ramdisk.gz uRamdisk
Could somebody give me any suggestions?
Thanks, Mike