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debian:upgradepathtemplate [2024/04/17 22:13]
51.174.65.41 old revision restored (2024/04/02 03:28) 		debian:upgradepathtemplate [2024/04/30 16:41] (current)
135.181.212.177 old revision restored (2022/11/15 12:43)
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 I will normally create a complete system clone and use this template to work out the entire correct and functional path for the production system in question. I will normally create a complete system clone and use this template to work out the entire correct and functional path for the production system in question.
 +
 +Debian Release upgrade paths:
 +
 +  Jessie -> Buster -> Bullseye
 +  Stretch -> Buster -> Bullseye
 +  Buster -> Bullseye
  
 ===== 1. Preparing for the upgrade ===== ===== 1. Preparing for the upgrade =====
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 ==== 1.3. Prepare for downtime on services ==== ==== 1.3. Prepare for downtime on services ====
  
-            Set maintainance window for upgrade with buffer+ Set maintainance window for upgrade with buffer 
 ==== 1.4. Prepare for recovery ==== ==== 1.4. Prepare for recovery ====
  
-            Verify the recoverability of system from backup image+ Verify the recoverability of system from backup image 
 ==== 1.5. Prepare a safe environment for the upgrade ==== ==== 1.5. Prepare a safe environment for the upgrade ====
  
-            Local terminal or SSH access+ Local terminal or SSH access 
 ==== 1.6. Develop tests for section 3.3 that will ensure correct execution of needed tasks ==== ==== 1.6. Develop tests for section 3.3 that will ensure correct execution of needed tasks ====
  
-            i.e.: + i.e.: 
-                a. Web server delivers correctly +  a. Web server delivers correctly 
-                b. php scripts execute correctly +  b. php scripts execute correctly 
-                c. DB runs correctly +  c. DB runs correctly 
-                d. mail works+  d. mail works
  
 ===== 2. Checking system status ===== ===== 2. Checking system status =====
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 ==== 2.1. Review actions pending in package manager ==== ==== 2.1. Review actions pending in package manager ====
  
-            # aptitude +    # aptitude 
-            Select GO and review+  Select GO and review 
 ==== 2.2. Disabling APT pinning ==== ==== 2.2. Disabling APT pinning ====
  
-            check /etc/apt/preferences & /etc/apt/preferences.d/ for entries+ check /etc/apt/preferences & /etc/apt/preferences.d/ for entries 
 ==== 2.3. Checking packages status ==== ==== 2.3. Checking packages status ====
  
-            # dpkg --audit +  # dpkg --audit 
-            # aptitude search "~ahold" +  # aptitude search "~ahold" 
-            # dpkg --get-selections | grep 'hold$'+  # dpkg --get-selections | grep 'hold$' 
 + 
 + To remove a hold on a package: 
 +  echo package_name install | dpkg --set-selections
  
-         To remove a hold on a package: echo package_name install | dpkg --set-selections 
 ==== 2.4. Remove proposed-updates section if present in /etc/apt/sources.list ==== ==== 2.4. Remove proposed-updates section if present in /etc/apt/sources.list ====
  
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 3.1. Update current installation 3.1. Update current installation
-            # sudo apt update+  # sudo apt update
 3.2. Upgrade current installation 3.2. Upgrade current installation
-            # sudo apt upgrade+  # sudo apt upgrade
 3.3. Check functionality 3.3. Check functionality
-            Verify all services required of current host is functioning correctly+ Verify all services required of current host is functioning correctly
 3.4. Upgrade current distribution 3.4. Upgrade current distribution
-            # sudo apt dist-upgrade+  # sudo apt dist-upgrade
 3.5. Check functionality 3.5. Check functionality
-            see 3.3 above+ see 3.3 above
  
 ===== 4. Preparing sources for APT ===== ===== 4. Preparing sources for APT =====
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 4.1. Adding APT Internet sources 4.1. Adding APT Internet sources
-            # sudo sed -i 's/CURRENT_RELEASE/TARGET_RELEASE/g' /etc/apt/sources.list + 
-            # sudo sed -i 's/CURRENT_RELEASE/TARGET_RELEASE/g' /etc/apt/sources.list.d/*+  # sudo sed -i 's/CURRENT_RELEASE/TARGET_RELEASE/g' /etc/apt/sources.list 
 +  # sudo sed -i 's/CURRENT_RELEASE/TARGET_RELEASE/g' /etc/apt/sources.list.d/* 
 4.2. Adding APT sources for a local mirror 4.2. Adding APT sources for a local mirror
-            Only required for special in-house software+ 
 + Only required for special in-house software 
 4.3. Adding APT sources from optical media 4.3. Adding APT sources from optical media
-            Only required for special 3rd party delivered software+ 
 + Only required for special 3rd party delivered software
  
 ===== 5. Upgrading packages ===== ===== 5. Upgrading packages =====
debian/upgradepathtemplate.1713384800.txt.gz · Last modified: 2024/04/17 22:13 by 51.174.65.41

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