On Aug 4, 2006, at 8:54 AM, Prashant Yendigeri wrote: > > Hi, > > I am able to boot linux kernel 2.6.12 on ppc 8540, and also able to > login too. But then i am unable to see any output when i say ls, > mount,ifconfig etc. Only pwd and env seem to work > Whereas if i boot with kernel 2.4.20 and with the same ramdisk > which i used to boot 2.6.12, i am able to see eveything, ls, mount > outputs etc.
Do you have console=ttyS0 on the command line to the kernel? - kumar > > I built the ramdisk image using busybox 1.2 > > This is the boot messages of 2.6.12 : > ## Booting image at 01000000 ... > Image Name: Linux-2.6.12 > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 1177413 Bytes = 1.1 MB > Load Address: 00000000 > Entry Point: 000000000 > Verifying ksum ... OK > Uncompressing Kernel Image ... OK > ## Loading RAMDisk Image at 01200000 ... > Image Name: MPC85xx ramdisk > Image Type: PowerPC Linux RAMDisk Image (gzip compressed) > Data Size: 5887861 Bytes = 5.6 MB > Load Address: 00000000 > Entry Point: 00000000 > Verifying Checksum ... OK > Loading Ramdisk to 0fa16000, end 0ffb3775 ... OK > mpc8540ads_init(): exit > id mach(): done > MMU:enter > MMU:hw init > MMU:mapin > MMU:setio > MMU:exit > setup_arch: enter > setup_arch: bootmem > mpc8540ads_setup_arch() > arch: exit > openpic: enter > r ...?.?....???..)55?....?.?..???)5? > ] class_hotplug - name = ttyw8 > [ 2.126538] Generic RTC Driver v1.07 > [ 2.127108] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, > IRQ sharind[ 2.130813] ttyS0 at MMIO 0xe0004500 (irq = 26) is a > 16550A > [ 2.152265] ttyS1 at MMIO 0xe0004600 (irq = 26) is a 16550A > [ 2.158526] io scheduler noop registered > [ 2.162574] io scheduler anticipatory registered > [ 2.167318] io scheduler deadline registered > [ 2.171730] io scheduler cfq registered > [ 2.182339] RAMDISK driver initialized: 16 RAM disks of 32768K > size 1024 ble[ 2.193524] loop: loaded (max 8 devices) > [ 2.198105] Equalizer2002: Simon Janes (simon at ncm.com) and David > S. Miller )[ 2.207423] tun: Universal TUN/TAP device driver, 1.6 > [ 2.212597] tun: (C) 1999-2004 Max Krasnyansky <maxk at qualcomm.com> > [ 2.219737] mice: PS/2 mouse device common for all mice > [ 2.225711] i2c /dev entries driver > [ 2.230856] NET: Registered protocol family 2 > [ 2.245261] IP: routing cache hash table of 2048 buckets, 16Kbytes > [ 2.252570] TCP established hash table entries: 16384 (order: 5, > 131072 byt)[ 2.260355] TCP bind hash table entries: 16384 > (order: 4, 65536 bytes) > [ 2.267366] TCP: Hash tables configured (established 16384 bind > 16384) > [ 2.274459] NET: Registered protocol family 1 > [ 2.278943] NET: Registered protocol family 17 > [ 2.284791] RAMDISK: Compressed image found at block 0 > [ 4.435668] VFS: Mounted root (ext2 filesystem). > [ 4.440693] Freeing unused kernel memory: 84k init > [ 4.445614] Reached here > [ 4.448201] Reached here 2 > [ 4.451423] Reached here 3 > [ 4.454196] going to Exec /sbin/init > init started: BusyBox v1.2.0 (2006.08.02-10:51+0000) multi-call > binary > Starting pid 682, console /dev/ttyS0: '/etc/init.d/rcS' > Starting pid 690, console /dev/ttyS0: '/sbin/ge > Welcome to Linux on MPC85xxSK board! > MPC85xxSK login: > > > -> After this i login as root and type ls but no output on the > screen, pwd and env throw output. > -> I also see that in 2.4 booting messages :"Freeing initrd > memory........" is displayed" but not in 2.6.12, eventhough i have > enabled CONFIG_BLK_DEV_INITRD > -> Should i enter something for CONFIG_INITRAMFS_SOURCE as of now > it is blank ? > > Thanks and Regards, > Prashant > > > > ______________________________________________________________________ > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded