[Nix-dev] error: querying path in database: database disk image is malformed

[Marco Maggesi]

I'm on NixOS.  I see that the nixos-install is present in my system.
Then I would like to avoid to burn a new installation CD, if possible.

Can I run nixos-install from my installed system?
I tried, and this is what I get:

# nixos-install --root /
/run/current-system/sw/bin/nixos-install: line 88:
/run/current-system/sw/bin/mount: No such file or directory

# mount /dev/disk/by-label/nixos /mnt

# nixos-install
cp: cannot stat '/etc/resolv.conf': No such file or directory
cp: cannot stat '/etc/hosts': No such file or directory

Thanks again,
Marco



2016-07-26 9:18 GMT+02:00 Domen Kožar <domen at dev.si>:

> If it's a single user install, just run:
>
> $ curl https://nixos.org/nix/install | sh
>
> If it's a multi-user install, follow
> http://nixos.org/nix/manual/#ssec-multi-user
>
> For NixOS, run nixos-install on your root partition.
>
>
> On Tue, Jul 26, 2016 at 9:13 AM, Marco Maggesi <maggesi at math.unifi.it>
> wrote:
>
>> Thanks Domen.
>>
>> But how I do (re)install Nix?
>> From sources?
>>
>> M.
>>
>> 2016-07-25 10:46 GMT+02:00 Domen Kožar <domen at dev.si>:
>>
>>> Happened to me once, I deleted the sqlite db (made a backup of it first)
>>> and just installed Nix again.
>>>
>>> On Mon, Jul 25, 2016 at 10:23 AM, Marco Maggesi <maggesi at math.unifi.it>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> during the last upgrade I got this error:
>>>>
>>>> # nix-env --always -u
>>>> error: querying path in database: database disk image is malformed
>>>> (use ‘--show-trace’ to show detailed location information)
>>>>
>>>> Here is what sqlite says:
>>>>
>>>> ./sqlite3 /nix/var/nix/db/db.sqlite "pragma integrity_check"
>>>> *** in database main ***
>>>> Page 5033: btreeInitPage() returns error code 11
>>>> Page 3988: btreeInitPage() returns error code 11
>>>> Page 1926: btreeInitPage() returns error code 11
>>>> Page 2363: btreeInitPage() returns error code 11
>>>> Page 3146: btreeInitPage() returns error code 11
>>>> Page 5090: btreeInitPage() returns error code 11
>>>> Page 5124: btreeInitPage() returns error code 11
>>>> Page 283: btreeInitPage() returns error code 11
>>>> Error: database disk image is malformed
>>>>
>>>> Can you give me a suggestion on the cheapest way to recover from this?
>>>>
>>>> Thanks,
>>>> Marco
>>>>
>>>>
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>>>>
>>>>
>>>
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>>
>
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