[Synology DSM] Any command outputs "brew.sh: line 604: /etc/os-release: No such file or directory" #4670

ogerardin · 2023-07-25T09:23:17Z

ogerardin
Jul 25, 2023

Output of `brew config`

/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 604: /etc/os-release: No such file or directory
HOMEBREW_VERSION: 4.1.1-17-gd0f7d2b
ORIGIN: https://github.com/Homebrew/brew
HEAD: d0f7d2b01173d3f01107329af3064c9c9a5ab5c5
Last commit: 88 minutes ago
Core tap origin: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 61239c4c7192787f360874ea7d7d8aa3361ae2c1
Core tap last commit: 5 months ago
Core tap branch: master
Core tap JSON: 25 Jul 09:05 UTC
HOMEBREW_PREFIX: /home/linuxbrew/.linuxbrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 1
HOMEBREW_TEMP: /var/services/homes/olivier/tmp
Homebrew Ruby: 2.6.10 => /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.10_1/bin/ruby
CPU: single-core 64-bit unknown_0x6_0x5c
Clang: N/A
Git: 2.41.0 => /home/linuxbrew/.linuxbrew/bin/git
Curl: 7.79.1 => /bin/curl
Kernel: Linux 4.4.180+ x86_64 GNU/Linux
OS: Unknown
Host glibc: 2.26
/usr/bin/gcc: 12.3.0
/usr/bin/ruby: N/A
glibc: 2.35_1
gcc@11: 11.4.0
gcc: 13.1.0
xorg: N/A

Output of `brew doctor`

/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 604: /etc/os-release: No such file or directory
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Some installed formulae are deprecated or disabled.
You should find replacements for the following formulae:
  gcc@5
  [email protected]

Description of issue

Since a recent update, any brew command outputs:
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 604: /etc/os-release: No such file or directory
before anything else.
It doesn't seem to affect founctionality though.

The system is a Synology NAS with DSM 7.

Answered by ogerardin

Jun 14, 2024

Nice one!
I had to split it on several lines otherwise the heredoc doesn't work.

sudo install -m 755 /dev/stdin /etc/os-release <<EOF 
#!/bin/bash 
echo "PRETTY_NAME=\"\$(source /etc.defaults/VERSION && echo \${os_name} \${productversion}-\${buildnumber} Update \${smallfixnumber})\"" 
EOF

View full answer

SMillerDev · 2023-07-25T09:25:15Z

SMillerDev
Jul 25, 2023

Do you have an lsb_release command? And if so, what does it output?

1 reply

ogerardin Jul 25, 2023
Author

No lsb_release command...

osalbahr · 2023-07-25T11:26:29Z

osalbahr
Jul 25, 2023
Sponsor

What’s the output of brew install --verbose --debug <formula>? (where <formula> is any formula you don’t have installed). I think the error message you see would still be at the very beginning, just double-checking.

8 replies

ogerardin Jul 25, 2023
Author

As stated it's Synology DSM 7, and since the absence of this file doesn't seem to affect functionality, it means brew doesn't rely on it...
Generally speaking I believe it's smarter to tests for features than to determine the distro and infer the features from that.

Synology has a /etc/VERSION file but it does not match the info contained in os-release:

$ cat /etc/VERSION
majorversion="7"
minorversion="1"
major="7"
minor="1"
micro="1"
productversion="7.1.1"
buildphase="GM"
buildnumber="42962"
smallfixnumber="6"
nano="6"
base="42962"
builddate="2023/05/29"
buildtime="20:01:57"

There are ways to determine if it's a Synology distro but I don't think there's a point as it would be non-standard.

SMillerDev Jul 25, 2023

As stated it's Synology DSM 7, and since the absence of this file doesn't seem to affect functionality, it means brew doesn't rely on it...

It is used in brew doctor and in analytics for maintainers to figure out what OS you're using and how to support it. I'd say brew does rely on it.

osalbahr Jul 25, 2023
Sponsor

Homebrew does not rely on it, yeah (for basic functionality, that is). However, in the brew config output:

OS: Unknown

which might make it more difficult to debug issues if they were to arrise.

I’m curious, what do you get when running fastfetch or neofetch (the one by hyfetch)?

osalbahr Jul 25, 2023
Sponsor

but at least the message should be redirected to /dev/null

I see the argument. And you might be interested in doing that locally for the meantime. I don’t think it’s a good idea to simply mask the error message for everyone. Or, if you’re interested, you can PR conditionally handling your case in brew.sh:HOMEBREW_OS_VERSION. Maybe something similar to what neofetch does. I think that would do it.

ogerardin Jul 26, 2023
Author

I don't think the goal is be as complete as neofetch so it makes no sense to implement a full detection logic. For 99% of users the current detection via os-release will work, and for the handful of us that are using a distro without os-release, it's OK to say "OS: Unknown".

However, I still believe this message should be hidden in normal use because it does not affect functionality at all, it's just for diagnosis purposes. As an end user I don't see why I would need to be made aware of that if everything still works fine. It makes sense though when invoking brew doctor or brew config which are specifically for diagnosis purposes.

ogerardin · 2023-07-25T16:34:19Z

ogerardin
Jul 25, 2023
Author

I’m curious, what do you get when running fastfetch or neofetch (the one by hyfetch)?

fastfetch has no clue (btw /volume2 is NOT removable):

        #####            [redacted]
       #######           -----------------
       ##O#O##           Host: DS918+ (1.0)
       #######           Kernel: 4.4.180+
     ###########         Uptime: 41 days, 19 hours, 43 mins
    #############        Packages: 69 (brew), 80 (pkgtool)
   ###############       Shell: sh 4.4.23
   ################      Terminal: /dev/pts/0
  #################      CPU: Intel(R) Celeron(R) J3455 (4) @ 1.501 GHz
#####################    Memory: 2.90 GiB / 11.55 GiB (25%)
#####################    Disk (/): 1.85 GiB / 2.28 GiB (81%)
  #################      Disk (/volume2): 8 TiB / 10 TiB (75%) [Removable]
                         Locale: en_US.utf8

neofetch does a better job and recognize Synology! Yay!

        #####           [redacted]
       #######          -----------------
       ##O#O##          OS: Synology DSM 7.1.1-42962 Update 6 x86_64
       #######          Host: DS918+ 1.0
     ###########        Kernel: 4.4.180+
    #############       Uptime: 41 days, 19 hours, 46 mins
   ###############      Packages: 69 (brew)
   ################     Shell: sh
  #################     Terminal: /dev/pts/0
#####################   CPU: Intel Celeron J3455 (4) @ 1.5GHz
#####################   Memory: 3.29 GiB / 11.54 GiB (28%)
  #################     Network: 1 Gbps
                        BIOS: INSYDE Corp. (11/11/2019)

0 replies

ogerardin · 2023-07-25T16:37:19Z

ogerardin
Jul 25, 2023
Author

And I was not wrong, it tests /etc/VERSION :)

elif [[ -f /etc/VERSION ]]; then
                # Source the DSM VERSION file
                source /etc/VERSION
                distro="Synology DSM ${productversion}-${buildnumber} Update ${smallfixnumber}"

3 replies

osalbahr Jul 25, 2023
Sponsor

Does it immediately assume that it’s Synology just because of the existence of /etc/VERSION?

ogerardin Jul 25, 2023
Author

Apparently yes...
https://github.com/hykilpikonna/hyfetch/blob/0385fd836d55af63464be6e2fd87f17a5a17d23f/neofetch#L1238

osalbahr Jul 25, 2023
Sponsor

Yeah I think you’re right. This is when it was added:

Add (rudimentary) Synology DSM support dylanaraps/neofetch#1666

vsenn · 2024-06-13T15:59:49Z

vsenn
Jun 13, 2024

This workaround to eliminate Homebrew warning works just fine for me on DSM 7.1

sudo install -m 755 /dev/stdin /etc/os-release <<EOF #!/bin/bash echo "PRETTY_NAME=\"\$(source /etc.defaults/VERSION && echo \${os_name} \${productversion}-\${buildnumber} Update \${smallfixnumber})\"" EOF

No more /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 604: /etc/os-release: No such file or directory after this quick fix

3 replies

ogerardin Jun 14, 2024
Author

Nice one!
I had to split it on several lines otherwise the heredoc doesn't work.

sudo install -m 755 /dev/stdin /etc/os-release <<EOF 
#!/bin/bash 
echo "PRETTY_NAME=\"\$(source /etc.defaults/VERSION && echo \${os_name} \${productversion}-\${buildnumber} Update \${smallfixnumber})\"" 
EOF

Answer selected by ogerardin

vsenn Jun 14, 2024

Yes, in your formatting. Don't know, how to add a carriage return 😄 Thanks a ton for entire brew\DSM hack!

ogerardin Jun 14, 2024
Author

Sorry I had to mark my own reply as answer because of the formatting...
FYI to retain CRs you need to use a block quote (triple backtick)

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Homebrew

[Synology DSM] Any command outputs "brew.sh: line 604: /etc/os-release: No such file or directory" #4670

ogerardin Jul 25, 2023

Output of brew config

Output of brew doctor

Description of issue

Replies: 5 comments · 15 replies

SMillerDev Jul 25, 2023

ogerardin Jul 25, 2023 Author

osalbahr Jul 25, 2023 Sponsor

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ogerardin
Jul 25, 2023

Output of `brew config`

Output of `brew doctor`

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