Background: I have 150 laptops that need to be imaged with an Ubuntu linux image for our senators and representatives.  I chose systemimager for this task.

I set everything up by and(i.e. nt using mkbootserver, etc).  I did not use the PXE package as it should not be neccessary(please explain this to me if I am wrong) since modern DHCP servers handle PXE booting. 

The client machine boots, gets a DHCP address and finds the kernel provided by the systemimager package.  I then get a couple of errors followed by a kernel panic.  The errors are as follows.

cramfs: wrong magic
FAT: bogus logical sector size 0
Kernel panic: VFS: Unable to mount root fs on 00:00

I am allowing the pxelinux.cfg/default file to be used.  The contents of that file are as follows.

DEFAULT install

label install
        kernel systemimager/kernel
        append vga=normal systemimager/initrd=initrd.img ramdisk_size=90000 root=/dev/rd/0 rw  --

directory structure is as follows.

[EMAIL PROTECTED]:/tftpboot$ ls -al
total 18
drwxr-xr-x  4 root root  1024 2006-02-22 19:21 .
drwxr-xr-x 23 root root  1024 2006-02-21 18:53 ..
-rw-r--r--  1 root root 13156 2006-02-22 19:05 pxelinux.0
drwxr-xr-x  2 root root  1024 2006-02-22 19:36 pxelinux.cfg
drwxr-xr-x  2 root root  1024 2006-02-22 19:21 systemimager
[EMAIL PROTECTED]:/tftpboot$ cd systemimager/
[EMAIL PROTECTED]:/tftpboot/systemimager$ ls -al
total 4671
drwxr-xr-x 2 root root    1024 2006-02-22 19:21 .
drwxr-xr-x 4 root root    1024 2006-02-22 19:21 ..
-rw-r--r-- 1 root root 3436353 2006-02-22 19:17 boel_binaries.tar.gz
-rw-r--r-- 1 root root   22661 2006-02-22 19:17 config
-rw-r--r-- 1 root root  505141 2006-02-22 19:17 initrd.img
-rw-r--r-- 1 root root  791184 2006-02-22 19:17 kernel
[EMAIL PROTECTED]:/tftpboot/systemimager$ cd ../pxelinux.cfg/
[EMAIL PROTECTED]:/tftpboot/pxelinux.cfg$ ls -al
total 6
drwxr-xr-x 2 root root 1024 2006-02-22 19:36 .
drwxr-xr-x 4 root root 1024 2006-02-22 19:21 ..
-rw-r--r-- 1 root root  165 2006-02-22 19:36 default
-rw-r--r-- 1 root root  701 2006-02-22 19:05 message.txt
-rw-r--r-- 1 root root  791 2006-02-22 19:05 syslinux.cfg
-rw-r--r-- 1 root root   47 2006-02-22 19:05 syslinux.cfg.localboot

I am hoping someone on this list might be able to shed some light on this kernel panic issue.  So far the only thing i have seen in the list is that the ramdisk_size might have been set too small.  I increased it to 90000 as suggested in another thread.

Thanks,
Jason




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