The reason why i do this is i accidently write crappy codes inside #pre_upgrade function So pre_upgrade will definite trap when ugrading canister. I have read ic-manage-canister api doc on install_code api . And i find out some ways to might achive goal: method1: Can i do something like that a…

method2: still got some FIXME yet. dont have complete workeable solution. And great thanks to @openchat codebase and team product. below code ref from openchat use candid::Principal; #[allow(unused_imports)] // use ic_agent::{ Identity}; #[allow(unused_imports)] use ic_utils::call::AsyncCall; use …

Turns out dfx does not support the flag and the ic_utils library has the type wrong so it’s not a trivial change to add the flag to dfx. @q2333gh you need to pin your version of ic_utils to the commit in this PR otherwise it won’t work. And the args will be the args taken by your init or post_upgra…

And then how should i use this flag in method2 mentioned above using ic-utils lib in rust code . i dont quite know the syntax yet. :grinning:

[image] q2333gh: .with_mode(InstallMode::Upgrade) I think that would be .with_mode(InstallMode::Upgrade{ skip_pre_upgrade: Some(true), })

I have use this commit tag in ic-agent and ic-utils lib: ic-agent = { git = "https://github.com/dfinity/agent-rs.git", rev = "b74445e1da0a6afefc3a08372f74e8ea416cd1ba" } ic-utils = { git = "https://github.com/dfinity/agent-rs.git", rev = "b74445e1da0a6afefc3a08372f74e8ea416cd1ba" } got almost on…

That version already implements identity . Could this be a problem with version mismatches? If you’re willing to do a very hacky solution I think the easiest thing would be to cargo clean, go into the cargo cache for ic-utils (just jump to declaration on the type) and patch InstallMode there

yeah. i tried the “hacky” way~ . like it .

I tried for hours but still can get it right. :sob:

How to mannually upgrade a canister with `skip_pre_upgrade = ture` flag?

Developers

Vivienne February 21, 2024, 9:53am 6

I think that would be

.with_mode(InstallMode::Upgrade{
  skip_pre_upgrade: Some(true),
})

If i uninstall canister code . and install with new wasm. will stable memory data still keep all its data without anychange?

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How to mannually upgrade a canister with `skip_pre_upgrade = ture` flag?

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