[Lab 5.1 Group Management] Couldn't create file under "somedir": Permission denied
Following the instructions in the document for Lab 5.1 where you have to create a file as a user belonging to a group inside a directory placed under another user's home directory, I only kept getting this error:
📦[bullwinkle@linux-sysadmin-course ~]$ touch /home/rocky/somedir/somefile touch: cannot touch '/home/rocky/somedir/somefile': Permission denied
I figured out later that the outputs of ls -l
weren't the same for the systems I tried it on (Fedora 38, openSUSE Tumbleweed 20240310, Debian 11), e.g. my Fedora distrobox:
📦[rocky@linux-sysadmin-course ~]$ ls -l total 4 drwxr-xr-x 2 rocky bosses 4096 Mar 13 17:22 somedir
Compared to the walkthrough provided:
$ ls -l total 16 -rw-r--r-- 1 rocky rocky 8980 Oct 4 2013 examples.desktop drwxrwxr-x 2 rocky bosses 4096 Oct 30 09:53 somedir
i.e. the write permissions weren't granted on the directory for me, but they were (by default?) in the example.
I don't know if this was intended or not, but I felt like I should have made a post about this.
Comments
-
Hi @fabv , what is the distro and version that didn't work for you? I can try to reproduce the issue.
Regards,
Luis.0 -
Hi! The details are in my post already:
the systems I tried it on (Fedora 38, openSUSE Tumbleweed 20240310, Debian 11)
I can provide more details if needed, the Fedora container I used for my own example has this for its
/etc/os-release
:$ cat /etc/os-release NAME="Fedora Linux" VERSION="38 (Container Image)" ID=fedora VERSION_ID=38 VERSION_CODENAME="" PLATFORM_ID="platform:f38" PRETTY_NAME="Fedora Linux 38 (Container Image)" ANSI_COLOR="0;38;2;60;110;180" LOGO=fedora-logo-icon CPE_NAME="cpe:/o:fedoraproject:fedora:38" DEFAULT_HOSTNAME="fedora" HOME_URL="https://fedoraproject.org/" DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f38/system-administrators-guide/" SUPPORT_URL="https://ask.fedoraproject.org/" BUG_REPORT_URL="https://bugzilla.redhat.com/" REDHAT_BUGZILLA_PRODUCT="Fedora" REDHAT_BUGZILLA_PRODUCT_VERSION=38 REDHAT_SUPPORT_PRODUCT="Fedora" REDHAT_SUPPORT_PRODUCT_VERSION=38 SUPPORT_END=2024-05-14 VARIANT="Container Image" VARIANT_ID=container
0 -
To add, after reading the umask lesson and seeing the "Demo: umask" video, I noticed that it does look like at the time of writing them, those systems had a default umask of
0002
instead of the current0022
I get on my systems.
I don't know where to look to say when this change could have been implemented.0 -
Hi @fabv ,
I tested it on Fedora 38 and I was able to reproduce the issue. So the workaround is the following:
1.- Move or copy the test to /tmp/ , so in some distros will be easier to avoid specific setups about the user directories.
I used 'cp -Rpv somedir/ /tmp/' in order to preserve the permissions on the directory.
2.- You need to give write permissions over somedir/ directory for the bosses group, so that way the bullwinkle user will be able to write on it.
I did that as rocky user and:
chmod 771 /tmp/somedir/
And that was enough.
Regards,
Luis.1 -
Thanks for confirming and for providing another solution!
Personally, I had solved that by simply giving write permissions on the directory to the group:
chmod g+x somedir
1 -
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