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From: Alexandr Andreev <andreev@niisi.msk.ru>
To: "David L. Parsley" <parsley@linuxjedi.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Using cramfs as root filesystem on diskless machine
Date: Tue, 19 Jun 2001 17:24:18 +0400	[thread overview]
Message-ID: <3B2F5282.30602@niisi.msk.ru> (raw)
In-Reply-To: <3B2A0F05.6050902@niisi.msk.ru> <3B2A538A.BA62148A@linuxjedi.org>

David L. Parsley wrote:

>Mathias Killian wrote a patch to allow cramfs initrd's, see:
>http://www.cs.helsinki.fi/linux/linux-kernel/2001-01/1064.html
>
Thank you. I applied this patch, and recompiled my kernel.
All works fine, if the size of root filesystem less than 4096Kb. But 
when i create
an image of root filesystem which size is bigger than 4096Mb, the kernel 
said:
...
RAMDISK driver initialized: 16 RAM disks of 4096K size 4096 blocksize
...
RAMDISK: cramfs filesystem found at block 0  
RAMDISK: Loading 2300 blocks [1 disk] into ram disk... done.
...
Freeing unused kernel memory: 116k freed  
Algorithmics/MIPS FPU Emulator v1.4
Error -3 while decompressing!     
804172a4(-166740)->803da000(4096)      
bash#

As you can see, the size of image is only 2300kb.
The kernel command line is:
root=/dev/ram init=/bin/bash ramdisk_blocksize=4096

When i tried to mount this image on a running kernel it is all OK.

# mount -o loop -t cramfs cramfsdisk.bin /mnt/ramdisk
# chroot /mnt/ramdisk /bin/bash

I already asked Matthias, but he said that he didn't try cramfs for
ram disks larger than 4k. Did anybody try it? Does anybody work on
cramfs now?



  reply	other threads:[~2001-06-19 13:29 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-15 13:35 Using cramfs as root filesystem on diskless machine Alexandr Andreev
     [not found] ` <14506.992621390@redhat.com>
2001-06-15 17:16   ` Alexandr Andreev
2001-06-15 18:27 ` David L. Parsley
2001-06-19 13:24   ` Alexandr Andreev [this message]
2001-06-19 14:04     ` David L. Parsley
2001-06-19 15:08       ` how to display proxy arp addresses using "ip neigh" from iproute2 Christopher Friesen
2001-06-21  5:16         ` Bernd Eckenfels
2001-06-19 15:44       ` Using cramfs as root filesystem on diskless machine Alexandr Andreev
2001-06-19 16:36         ` Stephane Casset
2001-06-17 16:28 ` Pavel Machek
     [not found] <Pine.LNX.4.33.0106151824240.28914-100000@imladris.demon.co.uk>
2001-06-15 17:35 ` Alexandr Andreev

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