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debian:upgradepathtemplate
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debian:upgradepathtemplate [2024/05/07 12:06] 158.220.122.230 old revision restored (2023/02/04 02:33) |
debian:upgradepathtemplate [2024/05/20 00:56] (current) 178.150.14.250 old revision restored (2023/02/05 02:59) |
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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 ===== | ||
| Line 20: | Line 14: | ||
| ==== 1.3. Prepare for downtime on services ==== | ==== 1.3. Prepare for downtime on services ==== | ||
| - | 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 | + | |
| ==== 1.5. Prepare a safe environment for the upgrade ==== | ==== 1.5. Prepare a safe environment for the upgrade ==== | ||
| - | 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.: | + | |
| - | 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 ===== | ||
| Line 48: | Line 42: | ||
| ==== 2.1. Review actions pending in package manager ==== | ==== 2.1. Review actions pending in package manager ==== | ||
| - | | + | |
| - | Select GO and review | + | Select GO and review |
| ==== 2.2. Disabling APT pinning ==== | ==== 2.2. Disabling APT pinning ==== | ||
| - | check / | + | |
| ==== 2.3. Checking packages status ==== | ==== 2.3. Checking packages status ==== | ||
| - | | + | |
| - | # aptitude search " | + | # aptitude search " |
| - | # dpkg --get-selections | grep ' | + | # dpkg --get-selections | grep ' |
| - | + | ||
| - | 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 / | ==== 2.4. Remove proposed-updates section if present in / | ||
| Line 73: | Line 64: | ||
| 3.1. Update current installation | 3.1. Update current installation | ||
| - | | + | |
| 3.2. Upgrade current installation | 3.2. Upgrade current installation | ||
| - | | + | |
| 3.3. Check functionality | 3.3. Check functionality | ||
| - | Verify all services required of current host is functioning correctly | + | |
| 3.4. Upgrade current distribution | 3.4. Upgrade current distribution | ||
| - | | + | |
| 3.5. Check functionality | 3.5. Check functionality | ||
| - | see 3.3 above | + | |
| ===== 4. Preparing sources for APT ===== | ===== 4. Preparing sources for APT ===== | ||
| Line 87: | Line 78: | ||
| 4.1. Adding APT Internet sources | 4.1. Adding APT Internet sources | ||
| - | + | | |
| - | | + | # sudo sed -i ' |
| - | # sudo sed -i ' | + | |
| 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 | + | |
| 4.3. Adding APT sources from optical media | 4.3. Adding APT sources from optical media | ||
| - | + | | |
| - | Only required for special 3rd party delivered software | + | |
| ===== 5. Upgrading packages ===== | ===== 5. Upgrading packages ===== | ||
debian/upgradepathtemplate.1715076405.txt.gz · Last modified: 2024/05/07 12:06 by 158.220.122.230
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