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debian:upgradepathtemplate [2024/04/17 19:38] 51.174.65.41 old revision restored (2022/11/13 22:43) |
debian:upgradepathtemplate [2024/04/30 04:13] 154.38.173.98 old revision restored (2023/02/03 11:22) |
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- | 1.1. Back up any data or configuration information | + | ==== 1.1. Back up any data or configuration information |
- | 1.2. Inform users in advance | + | |
- | 1.3. Prepare for downtime on services | + | ==== 1.2. Inform users in advance |
- | Set maintainance window for upgrade with buffer | + | |
- | 1.4. Prepare for recovery | + | ==== 1.3. Prepare for downtime on services |
- | Verify the recoverability of system from backup image | + | |
- | 1.5. Prepare a safe environment for the upgrade | + | Set maintainance window for upgrade with buffer |
- | Local terminal or SSH access | + | |
- | 1.6. Develop tests for section 3.3 that will ensure correct execution of needed tasks | + | ==== 1.4. Prepare for recovery |
- | i.e.: | + | |
- | a. Web server delivers correctly | + | |
- | b. php scripts execute correctly | + | |
- | c. DB runs correctly | + | ==== 1.5. Prepare a safe environment for the upgrade |
- | d. mail works | + | |
+ | Local terminal or SSH access | ||
+ | |||
+ | ==== 1.6. Develop tests for section 3.3 that will ensure correct execution of needed tasks ==== | ||
+ | |||
+ | | ||
+ | a. Web server delivers correctly | ||
+ | b. php scripts execute correctly | ||
+ | c. DB runs correctly | ||
+ | d. mail works | ||
+ | |||
+ | ===== 2. Checking system status ===== | ||
- | 2. Checking system status | ||
find NON-Pure Debian packages | find NON-Pure Debian packages | ||
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# apt-forktracer | sort | # apt-forktracer | sort | ||
- | 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 / | check / | ||
- | 2.3. Checking packages status | + | ==== 2.3. Checking packages status |
# dpkg --audit | # dpkg --audit | ||
# aptitude search " | # aptitude search " | ||
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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 / |
- | 2.5. Verify Unofficial sources are available for target Debian version | + | |
+ | ==== 2.5. Verify Unofficial sources are available for target Debian version | ||
+ | |||
+ | |||
+ | ===== 3. Upgrading current version ===== | ||
- | 3. Upgrading current version | ||
3.1. Update current installation | 3.1. Update current installation | ||
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see 3.3 above | see 3.3 above | ||
- | 4. Preparing sources for APT | + | ===== 4. Preparing sources for APT ===== |
4.1. Adding APT Internet sources | 4.1. Adding APT Internet sources | ||
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Only required for special 3rd party delivered software | Only required for special 3rd party delivered software | ||
- | 5. Upgrading packages | + | ===== 5. Upgrading packages |
Ensure all partition mountpoints are mounted read-write | Ensure all partition mountpoints are mounted read-write | ||
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See 3.3 above | See 3.3 above | ||
- | 6. Possible issues during upgrade | + | ===== 6. Possible issues during upgrade |
6.1. Dist-upgrade fails with “Could not perform immediate configuration” | 6.1. Dist-upgrade fails with “Could not perform immediate configuration” | ||
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Ctrl+Alt+F1 should recover the terminal window | Ctrl+Alt+F1 should recover the terminal window | ||
- | 7. Upgrading kernel and related packages | + | ===== 7. Upgrading kernel and related packages |
7.1. Install any needed kernel metapackage | 7.1. Install any needed kernel metapackage | ||
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# apt-cache show linux-image-amd64 | # apt-cache show linux-image-amd64 | ||
- | 8. Preparing for the next release | + | ===== 8. Preparing for the next release |
8.1. Purging removed packages | 8.1. Purging removed packages | ||
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# aptitude purge ' | # aptitude purge ' | ||
- | 9. Obsolete packages | + | ===== 9. Obsolete packages |
9.1. Dummy packages | 9.1. Dummy packages |