Date: Wed, 23 Sep 2020 10:03:47 +0200 From: Ludovit Koren <ludovit.koren@gmail.com> To: Christoph Brinkhaus <c.brinkhaus@t-online.de> Cc: <freebsd-questions@freebsd.org> Subject: Re: ZFS snapshot - rollback problem Message-ID: <86a6xg2a3g.fsf@gmail.com> In-Reply-To: <20200912143051.GA1500@esprimo> (Christoph Brinkhaus's message of "Sat, 12 Sep 2020 16:30:51 %2B0200") References: <CADZBGL4C83JyMqHNP5A_aUV%2BddXxbd2F7RtCQhox4dCKKQAqLw@mail.gmail.com> <20200912143051.GA1500@esprimo>
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>>>>> Christoph Brinkhaus <c.brinkhaus@t-online.de> writes:
> On Thu, Sep 10, 2020 at 04:18:39PM +0200, Ludovit Koren wrote:
> Dear Ludovit,
> I quote the first message because I have a complete different idea.
> I hope this is ok.
>> Hi,
>>
>> I have the following configuration:
>>
>> ~>uname -a
>> FreeBSD XxX 11.3-STABLE FreeBSD 11.3-STABLE #1 r354607: Mon Nov 11
>> 12:19:28 CET 2019 root@jedi:/usr/obj/usr/src/sys/HP amd64
>> ~>zfs list
>> NAME USED AVAIL REFER MOUNTPOINT
>> zroot 244G 0 10.7G /mnt
>> zroot/Centos8 6.80G 4.13G 2.67G -
>> zroot/msw7 44.9G 25.8G 19.1G -
>> zroot/swapdisk0 40.8G 20.6G 20.2G -
>> zroot/usr 131G 0 50.9G /usr
>> zroot/usr/home 80.1G 0 80.1G /usr/home
>> zroot/var 9.94G 0 9.94G /var
> Is it possible that the pool has been generated using Centos?
> Then the features of the pool might be different to that what
> is supported by FreeBSD.
> Kind regards,
> Christoph
>>
>> After zfs snapshot, which I did on the root, I got:
>> ~>zfs list -t snapshot
>> NAME USED AVAIL REFER MOUNTPOINT
>> zroot@200909 1K - 10.7G -
>> zroot/Centos8@200909 1K - 2.67G -
>> zroot/msw7@200909 1K - 19.1G -
>> zroot/swapdisk0@200909 0 - 20.2G -
>> zroot/usr@200909 1K - 50.9G -
>> zroot/usr/home@200909 1K - 80.1G -
>> zroot/var@200909 1K - 9.94G -
>>
>> i.e. whole filesystem is read only. I am not able to do neither
>> rollback, nor destroy of the snapshot. Is there any possibility to
>> reset the filesystem to the read-write mode?
>>
>>
>> Any help is greatly appreciated.
>>
>>
>> Regards,
>>
>>
>> lk
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Just to sum up, at the end. I did backup of the FS and reinstall the
OS. I did not find the way to reset the FS to read-write mode.
Regards,
lk
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