[arch-projects] [PATCH] [devtools] Add /dev/loop-control support.

[Gerardo Exequiel Pozzi]

On 01/11/2012 06:49 AM, Thomas Bächler wrote:
> Am 11.01.2012 08:43, schrieb Gerardo Exequiel Pozzi:
>> In order to take advantage of linux-3.1+ and mount/losetup of util-linux-2.21+,
>> thats allows dynamic allocation of loopback devices.
>>
>> Signed-off-by: Gerardo Exequiel Pozzi<vmlinuz386 at yahoo.com.ar>
>> ---
>>   mkarchroot.in |    1 +
>>   1 files changed, 1 insertions(+), 0 deletions(-)
>>
>> diff --git a/mkarchroot.in b/mkarchroot.in
>> index cda761c..4b92a35 100644
>> --- a/mkarchroot.in
>> +++ b/mkarchroot.in
>> @@ -99,6 +99,7 @@ chroot_mount() {
>>   	mknod -m 666 "${working_dir}/dev/tty" c 5 0
>>   	mknod -m 666 "${working_dir}/dev/tty0" c 4 0
>>   	mknod -m 666 "${working_dir}/dev/full" c 1 7
>> +	mknod -m 600 "${working_dir}/dev/loop-control" c 10 237
>>   	ln -s /proc/kcore "${working_dir}/dev/core"
>>   	ln -s /proc/self/fd "${working_dir}/dev/fd"
>>   	ln -s /proc/self/fd/0 "${working_dir}/dev/stdin"
> This still won't create the loopN file when you request one using
> loop-control (unless losetup does it) - this is only tmpfs, and no udev
> instance is looking after the chroot.
>
Ouch, partially true ( partially because udev does not create devices 
anymore 
http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=220893b3cbdbf8932f95c44811b169a8f0d33939 
and such device will be outside the chroot in devtmpfs.

So (chroot)/dev should be devtmpfs here...

-- 
Gerardo Exequiel Pozzi
\cos^2\alpha + \sin^2\alpha = 1