bug#41356: Install script fails on Ubuntu 18.04 x86_64: Workaround

bug#41356: Install script fails on Ubuntu 18.04 x86_64: Workaround

[Trevor Lee]

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Command:

```bash
sudo /tmp/guix-install.sh
```

Result:

```bash
cp: cannot stat '/root/.config/guix/current
/lib/systemd/system/gnu-store.mount': No such file or directory
chmod: cannot access '/etc/systemd/system/gnu-store.mount': No such file or
directory
```

Workaround:
Comment out `cp` at lines 347-348
Insert @ line 347

```bash
cat <<EOF > /etc/systemd/system/gnu-store.mount
[Unit]
Description=Read-only /gnu/store  for GNU Guix
DefaultDependencies=no
ConditionPathExists=/gnu/store
Before=guix-daemon.service

[Install]
WantedBy=guix-daemon.service

[Mount]
What=/gnu/store
Where=/gnu/store
Type=none
Options=bind,ro
EOF
```

HTH

-- 
Kind Regards

Begley Brothers Inc.


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bug#41356: Install script fails on Ubuntu 18.04 x86_64: Workaround

[Tobias Geerinckx-Rice via Bug reports for GNU Guix]

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Trevor,

Thanks for the report!

Trevor Lee 写道：
> ```bash
> cp: cannot stat '/root/.config/guix/current
> /lib/systemd/system/gnu-store.mount': No such file or directory
> chmod: cannot access '/etc/systemd/system/gnu-store.mount': No 
> such file or
> directory
> ```

This happens because [0] links to guix-install.sh on (git) master, 
which contains new code to install gnu-store.mount, but then 
downloads an older (release) archive that doesn't contain that 
file yet.

The above error is harmless, in that there's no regression from 
1.1.0.  New installations just won't benefit from Guix Advanced 
System Protection(ZOMG™) just yet. 
ebbf91542269fcb36d64928d4a4992e6afbf2acf avoids the error.

With that I'm closing this bug with little sense of satisfaction.

Your manual work-around is totes valid but (and do keep it), but 
while not mounting /gnu/store ro on foreign distributions was a 
serious oversight I don't think it warrants bundling or 
downloading a copy of the .mount unit.

IMO it does warrant a 1.1.1 release once Vincent's non-systemd 
work gets merged.

Kind regards,

T G-R

[0]: 
http://guix.gnu.org/manual/en/html_node/Binary-Installation.html#Binary-Installation

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bug#41356: closed (Re: bug#41356: Install script fails on Ubuntu 18.04 x86_64: Workaround)

[Ben Sturmfels]

unarchive 41356

On Sun, 17 May 2020, GNU bug Tracking System wrote:

>> ```bash
>> cp: cannot stat '/root/.config/guix/current
>> /lib/systemd/system/gnu-store.mount': No such file or directory
>> chmod: cannot access '/etc/systemd/system/gnu-store.mount': No such file or
>> directory
>> ```
>
> This happens because [0] links to guix-install.sh on (git) master, which
> contains new code to install gnu-store.mount, but then downloads an older
> (release) archive that doesn't contain that file yet.
>
> The above error is harmless, in that there's no regression from 1.1.0.  New
> installations just won't benefit from Guix Advanced System Protection(ZOMG™)
> just yet. ebbf91542269fcb36d64928d4a4992e6afbf2acf avoids the error.

The manual install has a similar issue where in 2.1 Binary Installation
step 5, it asks you to run:

# cp ~root/.config/guix/current/lib/systemd/system/gnu-store.mount \
     ~root/.config/guix/current/lib/systemd/system/guix-daemon.service \
     /etc/systemd/system/

Which confused me during an install with the same "No such file" error
as above. I see that guix-install.sh now includes a conditional around
this `cp`. Perhaps it would be worth a small note in the documentation
to advise that this will issue a harmless error on Guix <= 1.1.1?

Regards,
Ben