uClinux nios2 mmu

[Altera_Forum]

Hi. 

 I'm developing a system nios2 with mmu support and I can't make uClinux work.  This is the system nios ii build in Sopc Builder.  https://www.alteraforum.com/forum/attachment.php?attachmentid=8483   I can download the zImage.initramfs.gz  $ nios2-download -g zimage.initramfs.gz Using cable "USB-Blaster [USB-0]", device 1, instance 0x00 Pausing target processor: OK Initializing CPU cache (if present) OK Downloaded 1634KB in 23.8s (68.6KB/s) Verified OK Starting processor at address 0xC0400000  Then, I run nios2-terminal and...  $ nios2-terminal.exenios2-terminal: connected to hardware target using JTAG UART on cable nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0 nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)   Initializing cgroup subsys cpu Linux version 3.7.0+ (usuario@cent24.16 BogoMIPS (lpj=120832) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 512 NET: Registered protocol family 16 bio: create slab <bio-0> at 0 SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb Switching to clocksource timer NET: Registered protocol family 2 TCP established hash table entries: 512 (order: 0, 4096 bytes) TCP bind hash table entries: 512 (order: -1, 2048 bytes) TCP: Hash tables configured (established 512 bind 512) TCP: reno registered UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc. io scheduler noop registered io scheduler deadline registered (default) crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64 crc32: self tests passed, processed 225944 bytes in 3308320 nsec crc32c: CRC_LE_BITS = 64 crc32c: self tests passed, processed 225944 bytes in -4244500 nsec ttyAL0 at MMIO 0x803440 (irq = 1) is a Altera UART console [ttyAL0] enabled, bootconsole disabled  in putty...  console [ttyAL0] enabled, bootconsole disabledttyJ0 at MMIO 0x803468 (irq = 2) is a Altera JTAG UART spi_altera 803400.spi: master is unqueued, this is deprecated spi_altera 803400.spi: base e0803400, irq 3 Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. mousedev: PS/2 mouse device common for all mice mmc_spi spi32766.0: SD/MMC host mmc0, no DMA, no WP, no poweroff, cd polling usbcore: registered new interface driver usbhid usbhid: USB HID core driver TCP: cubic registered Warning: unable to open an initial console. vfs: cannot open root device "(null)" or unknown-block(0,0): error -2 please append a correct "root=" boot option; here are the available partitions: kernel panic - not syncing: vfs: unable to mount root fs on unknown-block(0,0)  and then nothing happens...  If anyone can help, I will be very grateful.  Attached the kernel configuration files and applications.  Thanks Nicolás Córdoba Argentina