Re: [uml-user] Loading an ISO with UML.

[Flavio <fbc...@gm...>]

2008/5/26 David Chanters <dav...@go...>:
> 2008/5/26 David Chanters <dav...@go...>:
>> Ah -- your command worked in that it loaded the Slackware image, but
>> not what's on the ISO -- my reasoning behind using the  Slackware
>> rootfs was to give the ISO a "launchpad".  Not very logical I know.
>
> Replying to myself, I downloaded a copy of the slackware 12.0 install
> DVD iso and tried this:
>
> sudo ./linux ubda=/home/david/slackware-12.0-install-dvd.iso mem=512MB
Let's try as the following link explains:
http://lass.cs.umass.edu/~pjd/uml/

./linux ubd0=root_fs_slack12.0 ubd1=slackware-12.0-install.iso

It seems you mispelled the kernel command line.
Maybe you have first to create an empty root filesystem image where to
install your distribution.

Regards,

Flavio

>
> However this caused a segfault:
>
> List of all partitions:
> 6200        341 ubda driver: uml-blkdev
> No filesystem could mount root, tried:  reiserfs ext3 ext2
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)
>
> EIP: 0073:[<b7fb2430>] CPU: 0 Not tainted ESP: 007b:bfccc4e0 EFLAGS: 00200246
>    Not tainted
> EAX: 00000000 EBX: 000063c7 ECX: 00000013 EDX: 000063c7
> ESI: 000063c3 EDI: bfccc53c EBP: bfccc504 DS: 007b ES: 007b
> 27c5ae7c:  [<0806b1e8>] show_regs+0xb4/0xb9
> 27c5aea8:  [<08059cd7>] panic_exit+0x25/0x3b
> 27c5aebc:  [<08086132>] notifier_call_chain+0x21/0x46
> 27c5aedc:  [<080861cd>] __atomic_notifier_call_chain+0x17/0x19
> 27c5aef8:  [<080861e4>] atomic_notifier_call_chain+0x15/0x17
> 27c5af14:  [<08071e0e>] panic+0x52/0xd8
> 27c5af34:  [<08049a68>] mount_block_root+0xf8/0x10e
> 27c5af7c:  [<08049aca>] mount_root+0x4c/0x54
> 27c5afa0:  [<08049bce>] prepare_namespace+0xfc/0x123
> 27c5afa8:  [<08049796>] kernel_init+0x68/0x71
> 27c5afb4:  [<08065159>] run_kernel_thread+0x37/0x42
> 27c5afe0:  [<08057918>] new_thread_handler+0x57/0xad
> 27c5affc:  [<00000000>] 0x0
>
> zsh: segmentation fault (core dumped)  sudo ./linux
> ubda=/home/david/slackware-12.0-install-dvd.iso mem=512MB
>
> I'm clearly misunderstanding something -- what is it?  :)
>
> David
>
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