选的南京大学的镜像,使用sudo oma upgrade时,出现错误:
INFO Refreshing local database ...
ERROR Checksum verification failed for
mirror.nju.edu.cn_anthon_debs_dists_stable_main_binary-all_Packages.
Retrying 2 times ...
ERROR Checksum verification failed for
mirror.nju.edu.cn_anthon_debs_dists_stable_main_BinContents-
loongarch64. Retrying 2 times ...
ERROR Checksum verification failed for
mirror.nju.edu.cn_anthon_debs_dists_stable_main_binary-
loongarch64_Packages. Retrying 2 times ...
ERROR Failed to download file
mirror.nju.edu.cn_anthon_debs_dists_stable_main_binary-all_Packages,
Reason: Checksum mismatch.
ERROR Failed to download file
mirror.nju.edu.cn_anthon_debs_dists_stable_main_binary-
loongarch64_Packages, Reason: Checksum mismatch.
ERROR Checksum verification failed for
mirror.nju.edu.cn_anthon_debs_dists_stable_main_Contents-all.zst.
Retrying 2 times ...
ERROR Checksum verification failed for
mirror.nju.edu.cn_anthon_debs_dists_stable_main_BinContents-all.
Retrying 2 times ...
ERROR Checksum verification failed for
mirror.nju.edu.cn_anthon_debs_dists_stable_main_Contents-
loongarch64.zst. Retrying 2 times ...
ERROR Failed to refresh repository metadata.
更新不了。请问如何处理?