Messages in this thread | | | Subject | Re: [Etherboot-users] 1G memory limit and Etherboot | From | (Eric W. Biederman) | Date | 18 Dec 2001 11:55:05 -0700 |
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Guolin Cheng <Guolin@alexa.com> writes:
> hi, Eric, > > I tried a few days ago, using etherboot 5.0.2, mknbi 1.2.6 with different > --rdbase options, but all failed. The kernel is 2.4.13, the initrd is around > 64M.
Unless something regressed 2.4.13 should be fairly robust in this regard.
> The netbooted client is a 1.5G memory HP Vectra 420. It can successfully > netbooted with 512M memory. But can not boot when memory is added to 1024M > and 1.5G. > > The error prompt is something like: > > Kernel panic: VFS: Unable to mount root fs on 01:00
Which just means it couldn't find your ramdisk. If you could please report all of your kernel messages. A serial console is ideal for that purpose. Without more information I cannot even guess why you are having problems.
> I'm using Official kernel 2.4.13, the base system is RedHat 7.1 on HP > vectra 420. > > The commands I used to create the tagged images is: > > /usr/bin/mknbi-linux --output=./kernel.test.0540 --ip=dhcp > --rdbase=0x5b000000 --rootdir=/dev/ram0 --append="idebus=66 ide0=ata66 > ide1=ata66 ro" bzImage initrd > > I also tried options, --rdbase=top/asis/0x00300000, all can failed with the > same above problem. > > At last I use local hard disk boot, with the same kernel (4G high memory > option enabled), it can boot successfully, then I tried to see the memory > mapping, and get the following information: > [snip] > > Please suggest which method, I can try to netboot the machine. Thanks a > lot.
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