Can't use borg shell

[CypLef]

Hi,

When I try to run a borg command from the borg shell, it fails:

bash: /venv/bin/borg: No such file or directory

Step to reproduce:
sudo yunohost app shell borg
borg list

Error
bash: /venv/bin/borg: No such file or directory

General information
I have this problem only on one of my two Yunhost server, the oldest one.
I think I installed Borg on this Yunohost server before the borg shell exist.
Borg seems to works fine, it does backup every day, as i can see in "Last Backup list" on the yunohost web admin.

Ideas of where the error can come from

The good folder exist, but the borg shell may be related to the wrong folder (absolute path to / : "/venv/bin/borg") :

sudo ls -lah /var/www/borg/venv/bin/
drwxr-xr-x 2 root borg 4.0K May 25 16:21 .
drwxr-xr-x 5 root borg 4.0K Nov 20  2024 ..
-rwxr-xrwx 1 root borg  226 Mar 30 18:13 borg
-rwxr-xrwx 1 root borg  226 Mar 30 18:13 borgfs
-rwxr-xr-x 1 root borg  235 Nov 20  2024 pip
-rwxr-xr-x 1 root borg  235 Nov 20  2024 pip3
-rwxr-xr-x 1 root borg  235 Nov 20  2024 pip3.11
lrwxrwxrwx 1 root borg    7 Nov 20  2024 python -> python3
lrwxrwxrwx 1 root borg   16 Nov 20  2024 python3 -> /usr/bin/python3
lrwxrwxrwx 1 root borg    7 Nov 20  2024 python3.11 -> python3
-rwxr-xr-x 1 root borg  228 May 25 16:21 wheel

Also, each time i connect threw ssh to this server, and each time i type a sudo yunohost app shell command, i have this error, but the command itself didn't fail:

sudo yunohost app shell borg
Error: yunohost command must be run as root or with sudo.
Error: yunohost command must be run as root or with sudo.
borg@myserver:~$ 

And i have 2 borg instance running on this server (borg and borg__2)
-> is it possible that each borg instance try to run a command to create or use the right venv but it fails?

[orhtej2]

When you enter the shell, what are the contents of wrapper/borg? Namely, are the variables substituted in the last line? Mine says

sudo --preserve-env="BORG_PASSPHRASE BORG_REPO BORG_RELOCATED_REPO_ACCESS_IS_OK BORG_RSH BORG_REMOTE_PATH " /var/www/borg/venv/bin/borg "$@"

Also, what version are you running? Mine is version: 1.4.4~ynh2

[fflorent]

In complement of what @orhtej2, what raises my attention in your report is the path of borg:

bash: /venv/bin/borg: No such file or directory

The path should have been prepended with the installation directory (source).

Two questions:

• Do you by chance have several borg client installations? (the result of yunohost app list may return borg apps with ID borg, borg__2, borg__3, ....)
  • If there are several borg client installations, this may explain that you can still push backups
• What is the result of yunohost app setting borg install_dir? (this must be /var/www/borg in order to work correctly)

[CypLef]

what are the contents of wrapper/borg?

set -a
source /var/www/borg/.env
sudo --preserve-env="BORG_PASSPHRASE BORG_REPO BORG_RELOCATED_REPO_ACCESS_IS_OK BORG_RSH BORG_REMOTE_PATH " /var/www/borg/venv/bin/borg "$@"

• my version of borg is: 1.4.4~ynh2

• I have 2 instance of borg backup and 1 borgserver:

  0: 
    description: Regularly create deduplicated, encrypted backups sent to another server using Borg
    id: borg
    name: Borg_Backup
    version: 1.4.4~ynh2
  1: 
    description: Regularly create deduplicated, encrypted backups sent to another server using Borg
    id: borg__2
    name: Borg Backup 2
    version: 1.4.4~ynh2
  2: 
    description: Offer backup storage to a friend
    id: borgserver
    name: Borg Server
    version: 1.4.3~ynh1

• when i type: sudo yunohost app setting borg install_dir
/var/www/borg

• and: sudo yunohost app setting borg__2 install_dir
/var/www/borg__2

• sudo yunohost app setting borgserver install_dir
/var/www/borgserver

[orhtej2]

When logged into borg shell, what's the outcome of which borg?

[CypLef]

When logged into borg shell, what's the outcome of which borg?

/var/www/borg/wrapper/borg

and for borg__2:
/var/www/borg__2/wrapper/borg

[orhtej2]

I honestly don't see what's wrong here.
You are invoking the wrapper as shown by which borg, the wrapper contents are OK as far as I can tell, cannot tell where the absolute venv path is coming from 🤷

[fflorent]

To me, it looks like there is some place where $install_dir is not set…

Maybe running bash -x $(which borg) version (⚠️ Please redact sensitive information before sharing ⚠️) could bring more clues?

[CypLef]

Maybe running bash -x $(which borg) version

for borg__2:

bash -x $(which borg) version

• set -eEu -o pipefail
• env
• grep -q '^BORG_'
• set -a
• source /var/www/borg__2/.env
  ++ BORG_PASSPHRASE= mypassphrase
  ++ BORG_REPO=/media/freebox/borg3
  ++ BORG_RELOCATED_REPO_ACCESS_IS_OK=yes
  ++ BORG_RSH='ssh -i /root/.ssh/id_borg__2_ed25519 -oStrictHostKeyChecking=yes '
  ++ BORG_REMOTE_PATH=borg
• sudo '--preserve-env=BORG_PASSPHRASE BORG_REPO BORG_RELOCATED_REPO_ACCESS_IS_OK BORG_RSH BORG_REMOTE_PATH ' /var/www/borg__2/venv/bin/borg version
  1.4.4 / 1.4.4

for borg:

• set -eEu -o pipefail
• env
• grep -q '^BORG_'
• set -a
• source /var/www/borg/.env
  ++ BORG_PASSPHRASE= mypassphrase
  ++ BORG_REPO= ssh://myuser@myfriendborgserver:port/~/backup
  ++ BORG_RELOCATED_REPO_ACCESS_IS_OK=yes
  ++ BORG_RSH='ssh -i /root/.ssh/id_borg_ed25519 -oStrictHostKeyChecking=yes '
  ++ BORG_REMOTE_PATH=borg
• sudo '--preserve-env=BORG_PASSPHRASE BORG_REPO BORG_RELOCATED_REPO_ACCESS_IS_OK BORG_RSH BORG_REMOTE_PATH ' /var/www/borg/venv/bin/borg version
  1.4.4 / 1.4.3

For last line: why is it 1.4.4 / 1.4.3 ? and not 1.4.4 /1.4.4 like borg__2?

[fflorent]

For last line: why is it 1.4.4 / 1.4.3 ? and not 1.4.4 /1.4.4 like borg__2?

It is the server-side version.

---

Regarding what I see, all seems good.
Could that be rather an issue with the installation of borg on the remote server?

[CypLef]

Could that be rather an issue with the installation of borg on the remote server?

borg is a local backup (so no other borg instance needed)
borg__2 is a distant backup

both seems to works fine, but on both i can't run borg shell command

[CypLef]

May it be related to this error? (if borg try to run a yunohost command to create venv, and need sudo for example)

sudo yunohost app shell borg
Error: yunohost command must be run as root or with sudo.
Error: yunohost command must be run as root or with sudo.
borg@myserver:~$ 

I have the same error running:

• sudo yunohost app shell borg__2
• sudo yunohost app shell nextcloud (but in NC shell, i can run php occ command without any problem)

For any other yunohost command, i don't have this error. It seems related only to yunohost app shell.

[fflorent]

Yeah, it's surprising, I don't know what could trigger these errors.

[fflorent]

@CypLef By chance, do you see some interesting logs when you do:

sudo yunohost --debug app shell borg