I'm following instruction https://linux.dell.com/repo/hardware/dsu/ but getting problems with it:

1) When "bash bootstrap.cgi" asks to import keys, if I select 'yes', then last key (0x274E9C32857A9594.asc) can't be imported:

[root@fa07 ~]# bash bootstrap.cgi
Checking for Dell GPG keys...
Do you want to import Dell GPG keys (y/n)?y
    0x756ba70b1019ced6.asc: Importing key into RPM.
                            Importing key into GPG.
    0x1285491434D8786F.asc: Importing key into RPM.
                            Importing key into GPG.
    0xca77951d23b66a9d.asc: Importing key into RPM.
                            Importing key into GPG.
    0x3CA66B4946770C59.asc: Importing key into RPM.
                            Importing key into GPG.
    0x274E9C32857A9594.asc: Importing key into RPM.
GPG-KEY import failed.
   Downloading the key failed or insufficient permissions to import the key.

2) If I proceed without importing keys, then "dell-system-update.repo" created; "yum install dell-system-update" works, but problem happens at step "yum install srvadmin-all":

[root@fa07 ~]# yum install srvadmin-all
Last metadata expiration check: 0:00:34 ago on Mon 22 Aug 2022 08:21:11 AM EDT.
No match for argument: srvadmin-all
Error: Unable to find a match: srvadmin-all
[root@fa07 ~]# 

I see https://www.dell.com/community/Systems-Management-General/Installing-OMSA-on-Red-Hat-8/td-p/7318742 reported something similar, but with other OS. Can it be that reason is the same here and Dell just doesn't support Rocky Linux 9 (which should be however quite similar to RHEL8 and we didn't expect to have problems with it)?

Thanks in advance!