RHEL5.7以前 https://access.redhat.com/site/solutions/9907 download debuginfo packages for RHEL 5.7 and earlier at this address depending on the architecture and release version ("Client" or "Server"): ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5{Client,Server}/en/os/{arch}/Debuginfo
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How can I download or install kernel debuginfo packages for RHEL systems? - Red Hat Customer Portal
Index of /pub/redhat/linux/enterprise/5Server/en/os/x86_64/Debuginfo
