ramdisk problems: No init found

[Kári Davíðsson]

You have to make shure the links excist on the ramdisk, specially then
link from /bin/init to /bin/busybox.

K.D.

> -----Original Message-----
> From: Alex Zeffertt [mailto:ajz at cambridgebroadband.com]
> Sent: 12. desember 2001 17:22
> To: linuxppc-embedded
> Subject: ramdisk problems: No init found
>
>
>
> All,
>
> I'm trying to get my MPC860 based board to boot using a
> ramdisk.  I build the root filesystem using
> busybox.  I then load the image into flash using PPCBoot.
> When the kernel boots it sees the ramdisk
> and decompresses it.  It then initialises the RAMDISK driver.
>  It even manages to mount the root
> filesystem.  However, it then panics with the message "No init found".
>
> I don't understand why the kernel cannot find /sbin/init - it
> is definitely being built.  (In fact
> busybox builds only one executable /bin/busybox; other
> executables such as /sbin/init are actually
> links to /bin/busybox).
>
> Has anyone else had this problem?
>
> Thanks, Alex
>
> PS Here's the kernel output:
>
>
> Hit any key to stop autoboot:  0
> ## Booting image at 40000000 ...
>    Image Name:   Linux-2.4.4
>    Created:      2001-12-10  16:18:51 UTC
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    631277 Bytes = 616 kB = 0 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> ## Loading RAMDisk Image at 40100000 ...
>    Image Name:   ramdisk image
>    Created:      2001-12-12  17:01:04 UTC
>    Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
>    Data Size:    100316 Bytes = 97 kB = 0 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Loading Ramdisk to 01f62000, end 01f7a7dc ... OK
> Linux version 2.4.4 (ajz at zambia) (gcc version 2.95.3 20010315
> (release/MontaVista)) #3 Mon Dec 10
> 16:17:53 GMT 2001
> On node 0 totalpages:
> 8192
> zone(0): 8192 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: root=/dev/ram
> ip=10.0.0.83:10.0.0.2:10.0.0.1:255.0.0.0:fast::off
> Decrementer Frequency: 3000000
> Calibrating delay loop... 47.82 BogoMIPS
> Memory: 30260k available (1208k kernel code, 552k data, 52k
> init, 0k highmem)
> Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> CPM UART driver version 0.03
> ttyS0 on SMC1 at 0x0280, BRG1
> ttyS1 on SMC2 at 0x0380, BRG2
> pty: 256 Unix98 ptys configured
> block: queued sectors max/low 20034kB/6678kB, 64 slots per queue
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 50MHz system bus speed for PIO modes; override
> with idebus=xx
> PCMCIA slot B: phys mem e0000000...ec000000 (size 0c000000)
> No card in slot B: PIPR=00003900
> eth0: FEC ENET Version 0.2, FEC irq 3, MII irq 4, addr
> 00:cb:bd:00:00:13
> RAMDISK: Compressed image found at block 0
> Freeing initrd memory: 4194301k freed
> JFFS version 1.0, (C) 1999, 2000  Axis Communications AB
> JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis
> Communications AB.
>  Amd/Fujitsu Extended Query Table v1.1 at 0x0040
> number of JEDEC chips: 1
> ICU862 flash bank 0: Using static image partition definition
> Creating 8 MTD partitions on "ICU862 Bank 0":
> 0x00000000-0x00100000 : "kernel"
> 0x00100000-0x00400000 : "initrd"
> 0x00400000-0x00800000 : "jffs"
> 0x00800000-0x00c00000 : "cramfs"
> 0x00c00000-0x00f00000 : "jffs2"
> 0x00f00000-0x00f40000 : "ppcboot"
> 0x00f40000-0x00f80000 : "environment"
> 0x00f80000-0x01000000 : "spare"
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP, IGMP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 2048 bind 2048)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> NET4: Ethernet Bridge 008 for NET4.0
> VFS: Mounted root (ext2 filesystem).
> Freeing unused kernel memory: 52k iné
> Kernel panic: No init found.  Try passing init= option to kernel.
> Rebooting in 180 seconds..
>


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