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Re: [PATCH] qemu-nbd: Removed deprecated --partition option
From: |
Max Reitz |
Subject: |
Re: [PATCH] qemu-nbd: Removed deprecated --partition option |
Date: |
Thu, 23 Jan 2020 13:44:36 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 |
On 23.01.20 13:30, Eric Blake wrote:
> On 1/23/20 6:10 AM, Max Reitz wrote:
>> On 22.01.20 22:43, Eric Blake wrote:
>>> The option was deprecated in 4.0.0 (commit 0ae2d546); it's now been
>>> long enough with no complaints to follow through with that process.
>>>
>>> Signed-off-by: Eric Blake <address@hidden>
>>> ---
>
>>> -@code{qemu-nbd -t -P 1 -f qcow2 file.qcow2}
>>> -
>>> -can be rewritten as:
>>> -
>>> -@code{qemu-nbd -t --image-opts
>>> driver=raw,offset=1M,size=100M,file.driver=qcow2,file.backing.driver=file,file.backing.filename=file.qcow2}
>>>
>>> -
>
>>> +can be rewritten as:
>>> +
>>> +@code{qemu-nbd -t --image-opts
>>> driver=raw,offset=1M,size=100M,file.driver=qcow2,file.backing.driver=file,file.backing.filename=file.qcow2}
>>>
>>
>> I know you just moved it from above, but isn’t this wrong? Shouldn’t it
>> be s/backing/file/g?
>
> Indeed; file.file.driver=file,file.file.filename=file.qcow2 is required
> for it to work, rather than fail with
> qemu-nbd: Failed to blk_new_open
> 'driver=raw,offset=1m,size=100m,file.driver=qcow2,file.backing.driver=file,file.backing.filename=file4':
> A block device must be specified for "file"
>
> I'll repost with the bug-fix as a separate commit (and it's a shame that
> we've gone nearly a year with no one noticing the typo in the original).
It was actually meant as a service to our users! So they can’t just
blindly copy-paste the example but have to think it through. And the
fact that noone has complained shows that our users indeed didn’t let
themselves be caught off-guard! /s O:-)
Thanks!
Max
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