RHEL: Get yum "snapshot" and reuse
jibbajabba
Member Posts: 4,317 ■■■■■■■■□□
in Off-Topic
Is there a way to get a list of packages installed via yum, piped somehow into a list which can then be used on a different server to install the exact packages ?
My own knowledge base made public: http://open902.com 
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log32
Users Awaiting Email Confirmation Posts: 217
you can certainly do that with shell scripting I guess.
List all installed packages with:[COLOR=#333333]yum list installed[/COLOR]
you will get something similar to this:
zlib-devel.x86_64 1.2.3-3 installed
zsh.x86_64 4.2.6-5.el5 installed
with that output, you can simply take the first field with:yum list installed | awk {'print $1'}redirect it to a text file and run a for loop on it.
good luck -
jibbajabba
Member Posts: 4,317 ■■■■■■■■□□
yum list installed | awk {'print $1'}
Thanks, that was the missing pipe-bit I was looking for.
A lot of people suggest yum-debug-**** and yum-debug-restore but for some reason yum-debug-restore is missing from yum-utilsyum list installed | awk {'print $1'} > installed.txt
thenyum -y install $(cat installed.txt)
worked like a charm - thanks for the hint !!My own knowledge base made public: http://open902.com -
jibbajabba
Member Posts: 4,317 ■■■■■■■■□□
You just have to be very careful with this. I blindly did that on a system now forgetting its on a different build ... (5.7 as opposed to 5.9) ..
Both really need to be on the same patch level - which might make it a little bit more difficult.My own knowledge base made public: http://open902.com -
hiddenknight821
Member Posts: 1,209 ■■■■■■□□□□
I was surprised the awk syntax Log32 used actually worked. I didn't believe it until I tested it. I prefer the single quote outside the bracelets, not within. This is what I see in most examples on the Net.
jibbajabba Can't you just update both systems to the latest patches?
