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Re: ramdisk funkiness

Subject: Re: ramdisk funkiness
From: Brian Murphy <>
Date: Thu, 31 May 2001 01:17:56 +0200
References: <>
Ian Thompson wrote:

> Hi,
> I'm porting the 2.4 kernel to a custom board, and I'm running into some
> trouble while trying to mount the root filesystem.  There is no media
> (hard drives, cdrom drives, etc) attached to the system, but of course
> the kernel needs a root filesystem to boot.  So, I'm trying to create an
> empty ramdisk and have the kernel mount that as the root fs.  The kernel
> installs the ramdisk driver fine, but when it tries to open the ramdisk,
> I get this error message:
> RAMDISK driver initialized: 16 RAM disks of 128K size 1024 blocksize
> VFS: Cannot open root device "ram0" or 01:00
> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs on 01:00

Have you got a filesystem on the ramdisk?


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