How to delete system generations?

[huang ying]

Hi,

For package, there is

$ guix package --delete-generations

But, for system, I don't find similar stuff?  Is there something for that?

I need that because I found the contents of the following store item is invalid,

/gnu/store/s9mrff47jfp9b3bhgv59q2kzwbmi6rl8-fatfsck-static-4.0

$ ls -l /gnu/store/s9mrff47jfp9b3bhgv59q2kzwbmi6rl8-fatfsck-static-4.0/sbin
total 0
-r-xr-xr-x 1 root root 0 Jan  1  1970 fsck.fat
lrwxrwxrwx 4 root root 8 Jan  1  1970 fsck.vfat -> fsck.fat

I want to regenerate it and the initrd.  But I don't know how.  One
way is to delete all generations depends on it, gc it, then regenerate
it.  But I don't know how to delete system generations.

Or is there some other way to work around this?

Best Regards,
Huang, Ying