Why is it that..?

austrianadmin

LFS207/chapter20/Disk Partitioning:

$ sudo blkid

Why is it that when i type that command, in ubuntu it works fine, but when i try that same comand on debian 12, i get the cannot find command output, although there is a man page, no matter if try with sudo or as root?

thanks and regards

berni

luisviveropena

Hi Berni,

I downloaded and installed Debian 13.2 and I wasn't able to reproduce your issue, because it worked in my VM:

luis@debiansrv:~$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 13 (trixie)"
NAME="Debian GNU/Linux"
VERSION_ID="13"
VERSION="13 (trixie)"
VERSION_CODENAME=trixie
DEBIAN_VERSION_FULL=13.2
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

luis@debiansrv:~$ sudo blkid
[sudo] password for luis:
/dev/sda5: UUID="3e49a5e5-e453-481b-929a-a172e0372bba" TYPE="swap" PARTUUID="adca020b-05"
/dev/sda1: UUID="38aad7f6-0ea9-456b-b174-78d5224318cb" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="adca020b-01"

luis@debiansrv:~$ which blkid
luis@debiansrv:~$ sudo which blkid
/usr/sbin/blkid

luis@debiansrv:~$ apt search blkid
libblkid-dev/stable 2.41-5 amd64
block device ID library - headers

libblkid1/stable,now 2.41-5 amd64 [installed]
block device ID library

This was just to see which package is providing the binary.

So, in your case instead of using sudo, do the following:

luis@debiansrv:~$ su -
Password:
root@debiansrv:~# blkid
/dev/sda5: UUID="3e49a5e5-e453-481b-929a-a172e0372bba" TYPE="swap" PARTUUID="adca020b-05"
/dev/sda1: UUID="38aad7f6-0ea9-456b-b174-78d5224318cb" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="adca020b-01"

In this case, using 'su -', we are running the root's shell with root's permissions, so you should be able to run it.

Please let me know.

Regards,
Luis.

luisviveropena

Hi Berni,

I think it's failing because it's not taking the root's PATH environment variable. So, when you do 'su', you get a login with the root user. When you do 'su -', you get a login with the root user with it's environment variables. So I guess you are just missing the root's PATH when you run the command.

Regards and happy New Year!
Luis.

austrianadmin

and here is the screenshot according the above question...

austrianadmin

Hi Luis,

no it did not function according to the screenshot, what could be the reason?

regards berni

austrianadmin

Hi Luis,
thanks i did not know the difference between su and su - where can i find more information about that because in the lfs 101 and also at this course it was not explained yet but it solves some of my questions...thanks a lot and happy new year and regards

berni

luisviveropena

Hi Berni,

It's in the 'man su' page. Perhaps it's not so clear, but it also takes training and practice.

Thanks, happy New Year to you as well!!

Luis.