Hi to all,
I've been working without problems booting linux from RAM with uboot using this command:
bootm 340000 480000
My system has 32MB of RAM memory.
Linux image is bzip2 compressed occupying 1.2 MB. It's loaded in 0x00000000.
Ramdisk image is uncompressed, and with size up to 4MB there is no problem in booting the whole system, but if it grows up to 5.6 MB a CRC problem appears.
Here is the log (I've added some prints):
## Booting image at 00340000 ... Header checksum 0x379FE185 calculated checksum 0x379FE185 Image Name: Linux-2.6.22.6 Image Type: PowerPC Linux Kernel Image (bzip2 compressed) Data Size: 1248712 Bytes = 1.2 MB Load Address: 00000000 Entry Point: 00000000 Image checksum 0xC2C0A57C calculated 0xC2C0A57C Verifying Checksum ... OK Uncompressing Kernel Image ... Descompressed in 0x00000000 length 3121286 0x2FA086 OK ## Loading RAMDisk Image at 00480000 ... Header checksum 0x936E410B calculated 0x936E410B Image Name: Root Image Type: PowerPC Linux RAMDisk Image (uncompressed) Data Size: 6156288 Bytes = 5.9 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... Bad Data CRC
It seems that the ramdisk image is corrupted because of the initialization of linux image. Can anyone help me? Is it something related to the descompression of bzip2 image?
Best regards,
Sonia
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