bash vdo command not found

[bartbus7]

While trying to install vdo, I got error bash: vdo command not found. Nor was stratisd recognized.

[chlebik]

I'm not in the subject that much anbymore but if it's not installed isn't it just a simple yum install vdo?

[bartbus7]

The error came from yum install vdo, and yum install kmod-kvdo, and also tried using dnf.

[bartbus7]

If rpm -q vdo kmod-kvdo shows nothing, and yum install vdo kmod-kvdo (or dnf/yum install kmod-kvdo vdo, or kmod-kvdo, or vdo) produce error bash: vdo command not found or vdo command unknown, on RHEL 8, then I don't know of any other way to get VDO on a machine.

[chlebik]

Hmm, my notes are mostly about RHEL7, RHEL8 certification appeared a couple of weeks after I've done the notes. In general AFAIK RHEL8 repos/software model changed in some way recently, probably that's the case.

[bartbus7]

No problem. I'm still researching, but coming up empty. I reached out to RH, but they were no help. It's on the exam.

[Zcheng1995]

you should be able to install via yum or dnf dnf install kmod-kvdo vdo -y dnf install stratisd stratis-cli -y

Could try enabling and starting both services systemctl enable --now stratisd systemctl enable --now vdo

[bartbus7]

I tried those during my exam and they didn't work, but I think it can be done using lvcreate --type vdo -L ####M vgname, with #### being the size in MB and vgname being your volume group. I can't find any other way to create VDO other than these 2 ways. Pretty tricky on RH's part. In my RH course and book you are taught to use the command: dnf install kmod-kvdo vdo -ythen vdo create --name=vdoname --device=/dev/sdc --vdoLogicalSize=1T.......If there are more than these 2 ways to create a VDO, I haven't found them.

Les Lambus

On Tuesday, May 4, 2021, 7:43:09 AM CDT, Zcheng1995 ***@***.***> wrote:  

you should be able to install via yum or dnf dnf install kmod-kvdo vdo -y dnf install stratisd stratis-cli -y

Could try enabling and starting both services systemctl enable --now stratisd systemctl enable --now vdo

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[Zcheng1995]

Hmm that's strange, because vdo create is what redhat academy went along with:

Create the VDO volume vdo1, using the /dev/vdd device. Set its logical size to 50GB.

Switch to the root user.

[student@servera ~]$ sudo -i [sudo] password for student: student [root@servera ~]# Confirm that the vdo package is installed using the rpm command.

[root@servera ~]# yum list installed vdo vdo-6.2.0.293-10.el8.x86_64 Create the vdo1 volume using the vdo create command.

[root@servera ~]# vdo create --name=vdo1 --device=/dev/vdd --vdoLogicalSize=50G ...output omitted... Verify the availability of the vdo1 volume using the vdo list command.

[root@servera ~]# vdo list vdo1

I tried those during my exam and they didn't work, but I think it can be done using lvcreate --type vdo -L ####M vgname, with #### being the size in MB and vgname being your volume group. I can't find any other way to create VDO other than these 2 ways. Pretty tricky on RH's part. In my RH course and book you are taught to use the command: dnf install kmod-kvdo vdo -ythen vdo create --name=vdoname --device=/dev/sdc --vdoLogicalSize=1T.......If there are more than these 2 ways to create a VDO, I haven't found them. Les Lambus On Tuesday, May 4, 2021, 7:43:09 AM CDT, Zcheng1995 @.***> wrote: you should be able to install via yum or dnf dnf install kmod-kvdo vdo -y dnf install stratisd stratis-cli -y Could try enabling and starting both services systemctl enable --now stratisd systemctl enable --now vdo — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[bartbus7]

That's exactly what I was taught also. I found the lvcreate way buried on their website and also other websites. I've Googled ways to create vdo for over a month and finally found the other one. it is very odd. I wish others would comment on it.  Les Lambus

On Wednesday, May 5, 2021, 03:29:02 AM CDT, Zcheng1995 ***@***.***> wrote:  

Hmm that's strange, because vdo create is what redhat academy went along with:

Create the VDO volume vdo1, using the /dev/vdd device. Set its logical size to 50GB.

Switch to the root user.

@. ~]$ sudo -i [sudo] password for student: student @. ~]# Confirm that the vdo package is installed using the rpm command.

@.*** ~]# yum list installed vdo vdo-6.2.0.293-10.el8.x86_64 Create the vdo1 volume using the vdo create command.

@.*** ~]# vdo create --name=vdo1 --device=/dev/vdd --vdoLogicalSize=50G ...output omitted... Verify the availability of the vdo1 volume using the vdo list command.

@.*** ~]# vdo list vdo1

I tried those during my exam and they didn't work, but I think it can be done using lvcreate --type vdo -L ####M vgname, with #### being the size in MB and vgname being your volume group. I can't find any other way to create VDO other than these 2 ways. Pretty tricky on RH's part. In my RH course and book you are taught to use the command: dnf install kmod-kvdo vdo -ythen vdo create --name=vdoname --device=/dev/sdc --vdoLogicalSize=1T.......If there are more than these 2 ways to create a VDO, I haven't found them. Les Lambus On Tuesday, May 4, 2021, 7:43:09 AM CDT, Zcheng1995 @.***> wrote: you should be able to install via yum or dnf dnf install kmod-kvdo vdo -y dnf install stratisd stratis-cli -y Could try enabling and starting both services systemctl enable --now stratisd systemctl enable --now vdo — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.