Re: [User-mode-linux-user] minimal command-line options for starting the kernel??

[William S. <wst...@po...>]

Good morning, Etienne,

On Wed, 16 Aug 2000, Etienne Tourigny-Manning wrote:

> I just tried using linux-2.4.0-test6 with the root_fs_redhat_6.2.
> I used the command-line  `./linux-2.4.0-test6 udb0=root_fs_redhat_6.2`
> and it doesn't boot up:
> 
> tourige@gaia ~/user_linux]% ./linux-2.4.0-test6 udb0=root_fs_redhat_6.2
> tracing thread pid = 10008
> Linux version 2.4.0-test6-1um (jd...@cc...) (gcc version
> egcs-2 19990314/Linux (egcs-1.1.2 release)) #1 Tue Aug 15 13:40:25 EST
> 2000
> On node 0 totalpages: 4096
> zone(0): 0 pages.
> zone(1): 4096 pages.
> zone(2): 0 pages.
> Kernel command line: udb0=root_fs_redhat_6.2 root=/dev/ubd0
> Calibrating delay loop... 583.27 BogoMIPS
> Memory: 16112k available
> Dentry-cache hash table entries: 2048 (order: 2, 16384 bytes)
> Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Inode-cache hash table entries: 1024 (order: 1, 8192 bytes)
> VFS: Diskquotas version dquot_6.4.0 initialized
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 1024 bind 1024)
> Starting kswapd v1.7
> pty: 256 Unix98 ptys configured
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> loop: registered device at major 7
> loop: enabling 8 loop devices
> User-mode Linux network interface 0.005 (eth0)
> User-mode Linux network interface 0.005 (eth1)
> User-mode Linux network interface 0.005 (eth2)
> User-mode Linux network interface 0.005 (eth3)
> Initializing stdio console driver
> Initializing software serial port version 0
> serial line 0 assigned pty /dev/ptyp4
> ssl receive thread is pid 10014
> Couldn't stat "root_fs" : No such file or directory

	Hmmm, do you have a root filesystem in the current
directory?  Try:
ls -al root_fs
	and see if there's a file by that name here.  If not, go back to
the download page
http://sourceforge.net/project/showfiles.php?group_id=429
	and pull down a root filesystem file for uml to use.  Anything in
the Root Filesystem section (except for the "kit" versions) are ready to
run; just download and uncompress them and start up your uml kernel again.
	Cheers,
	- Bill

> devfs: v0.102 (20000622) Richard Gooch (rg...@at...)
> devfs: devfs_debug: 0x0
> devfs: boot_options: 0x0
> ubd0: Can't open "root_fs":
> No such file or directory
> VFS: Cannot open root device "ubd0" or 62:00
> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs on 62:00

---------------------------------------------------------------------------
	"She worked with a subdued intensity... She once told me that the
only way to know when you have done something truly great is when your
spine tingles."
	- on Alice Kober, cryptanalist, in The Code Book, Simon Singh.
--------------------------------------------------------------------------
William Stearns (wst...@po...).  Mason, Buildkernel, named2hosts, 
and ipfwadm2ipchains are at:                http://www.pobox.com/~wstearns
LinuxMonth; articles for Linux Enthusiasts! http://www.linuxmonth.com
--------------------------------------------------------------------------