Re: [Xen-users] max loopback devices

[Fernando Maior <fernando.souto.maior@xxxxxxxxx>]

On 5/20/05, andrew mathes <amathes@xxxxxxxxxxxx> wrote:
> i just wanted to verify ... is this REALLY your kernel boot line, and do
> you have more than 8 loopback devices running?
> 
> because it only worked for me having max_loop on the 2nd line, otherwise
> it wouldn't let me do it.
> 
> and if you don't have more than 8 loopback devices running, the snootiness
> isn't appreciated, especially if you're not 100% sure that you're right.
> 
> so my fault if yours is actually working in the configuration you have
> there, but the attitude is still unnecessary.
> 
> so for anyone else ... try it on the vmlinuz line as well
> 
> have a nice day
> 
> On Wed, 11 May 2005, Kip Macy wrote:
> 
> > In the future check the FAQ first, here is my grub line:
> > kernel /xen-3.0-debug-untested.gz dom0_mem=524288 max_loop=255
> > com1=9600,8n1 cdb=com1 console=com1 hz=1000
> >
> > On 5/11/05, andrew mathes <amathes@xxxxxxxxxxxx> wrote:
> >> I can't seem to increase the # beyond 8 ...
> >>
> >> i'm just using stock xen0 and xenU, here is my grub line:
> >>
> >> title Xen 2.0 / XenLinux 2.6.10
> >> kernel /xen.gz dom0_mem=256000
> >> module /vmlinuz-2.6.10-xen0 root=/dev/md1 max_loop=32 console=tty0 ro
> >>
> >> from all i can figure this should make it 32 ... anyone point me in the
> >> right direction?
> >>
> >> thanks again!
> >>
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> >>
> >
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Hi,

I checked the FAQ, and, in item 4.4 it says:

"By default, Linux only allows up to 8 loop-back 
devices to be active. You can increase this number 
by setting max_loop=32 (etc) on the domain 0 
kernel command line in Grub."

I understand the domain 0 kernel command line
in GRUB should be the one after "kernel" and
titled "module" that is responsible for starting
the dom0 kernel.

If I am wrong, may be the FAQ should be rephrased
in order to make that more clear to others. Pehraps
an example should help.

-- 
Bye,
Fernando Maior
LPIC/1 31908

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