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Hi, I followed the instructions for installing kernel 2.6.21after compiling its source and then using the bootload utility to boot it. However, I get the following error which complains about not being able to mount rootfs because the root device cannot be opened. I guess I am doing something wrong in the boot options in the kernel config. I have pasted the last portion of the error log below. Any help is greatly appreciated. ------------------------------------------------------------ .... Built 4 zonelists. Total pages: 8128 Kernel command line: root=/dev/root/ init=/linuxrc console=ttyAM0,115200 PID hash table entries: 128 (order: 7, 512 bytes) Console: colour dummy device 80x30 Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory: 8MB 8MB 8MB 8MB = 32MB total Memory: 29076KB available (2976K code, 266K data, 112K init) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok NET: Registered protocol family 16 ep93xx: PLL1 running at 400 MHz, PLL2 at 192 MHz ep93xx: FCLK 200 MHz, HCLK 100 MHz, PCLK 50 MHz SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 1024 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes) TCP: Hash tables configured (established 1024 bind 1024) TCP reno registered NetWinder Floating Point Emulator V0.97 (double precision) JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc. yaffs Sep 22 2008 16:46:51 Installing. io scheduler noop registered io scheduler deadline registered (default) ep93xx_wdt: EP93XX watchdog, driver version 0.3 Serial: AMBA driver $Revision: 1.1.1.1 $ apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: loaded (max 8 devices) PPP generic driver version 2.4.2 tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky <> ep93xx-eth version 0.1 loading eth0: ep93xx on-chip ethernet, IRQ 39, 00:d0:69:41:58:40. Linux video capture interface: v2.00 Searching for NAND flash... NAND device: Manufacturer ID: 0xec, Chip ID: 0x75 (Samsung NAND 32MiB 3,3V 8-bit) Scanning device for bad blocks cmdlinepart partition parsing not available Using static partition definition Creating 3 MTD partitions on "ts7250-nand": 0x00000000-0x00020000 : "TS-BOOTROM" 0x00020000-0x01d20000 : "Linux" 0x01d20000-0x0201c000 : "RedBoot" mtd: partition "RedBoot" extends beyond the end of device "ts7250-nand" -- size trunc0ep93xx-ohci ep93xx-ohci: EP93xx OHCI ep93xx-ohci ep93xx-ohci: new USB bus registered, assigned bus number 1 ep93xx-ohci ep93xx-ohci: irq 56, io mem 0x80020000 usb usb1: Product: EP93xx OHCI usb usb1: Manufacturer: Linux 2.6.21-ts ohci_hcd usb usb1: SerialNumber: ep93xx usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usbcore: registered new interface driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver mice: PS/2 mouse device common for all mice rtc-m48t86 rtc-m48t86: rtc core: registered m48t86 as rtc0 rtc-m48t86 rtc-m48t86: battery ok ep93xx-rtc ep93xx-rtc: rtc core: registered ep93xx as rtc1 TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 10 IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 NET: Registered protocol family 15 ieee80211: 802.11 data/management/control stack, git-1.1.13 ieee80211: Copyright (C) 2004-2005 Intel Corporation <> rtc-m48t86 rtc-m48t86: hctosys: invalid date/time VFS: Cannot open root device "root/" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ----------------------------------------------------------------- thanks, Pradip __._,_.___
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