Chris: I talked with our Unix group. There was RPM's that SUSE send to us. But they need to execute twice for the issue disappear and appears to happen expanding the DASD not the SAN storage LVM. SUSE still working for a final fix. This is a findings from one of our Unix guy.
"All of our servers share the same layout: DASD disks (from mainframe storage) are used for our main root volume-group and the rest (Oracle filesystems) comes from the "Open world", that is our SAN storage system (IBM v7000 storage-array). We have 4 paths for each LUN and all of them are consolidated via multipath. This multipath device is what we use as PVs for our volume-groups. I was curious if our bug only triggers when we expand logical volumes backed by DASD devices... so we did a test now. I asked for our test system to be restored and I performed the LVM/filesystem expansion with one of Oracle filesytem (/temp) that is backed by LUNs coming from our SAN. To my surprise, the errors didn't show up ! Then I proceeded to expand /opt (from DASD) and indeed we get the error:" Regards, Victor Echavarry System Programmer Operating Systems EVERTEC, LLC -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Will, Chris Sent: Wednesday, May 27, 2020 10:51 AM To: [email protected] Subject: Re: Dracut error after Booting default (grub) message Do you know what package was patched and version? We tried a couple of patches that did not work but they were not as current as the one you are using. Chris -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Victor Echavarry Sent: Tuesday, May 26, 2020 1:57 PM To: [email protected] Subject: Re: Dracut error after Booting default (grub) message [External email] Chris: We open an issue with SUSE, is a LVM issue. They sent a fix last Friday, it looks that is working. The Unix group are testing right now. Regards, Victor Echavarry System Programmer Operating Systems EVERTEC, LLC -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Will, Chris Sent: Tuesday, May 26, 2020 1:45 PM To: [email protected] Subject: Re: Dracut error after Booting default (grub) message We have the exact same problem. Has there been a resolution to this issue? Chris Will -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Victor Echavarry Sent: Wednesday, May 13, 2020 4:02 PM To: [email protected] Subject: Re: Dracut error after Booting default (grub) message [External email] After various testing we found that the issue making the system doesn't boot is when expanding the LVM OS file system, ex. /opt, /var. The Unix administrator send a photo of a message when he resized the filesystem. https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimgur.com%2Fj57a7aL&data=02%7C01%7CVictor.Echavarry%40evertecinc.com%7C259621b495b04a10197108d8024d793b%7C2b5b7d77f19b4c6db1805768c09ad43b%7C0%7C0%7C637261879061029064&sdata=UFNn4%2B7ngUiPk4ANeq3hqBqrrsLSPQ00DwvuygnPlHc%3D&reserved=0 When he reboots the system, the system stop under Booting default (grub2) for a couple of minutes and then show the Dracut message going to Give root password for maintenance (or press Control-D to continue): Right now there an open case under SUSE waiting for a solution. Regards, Victor Echavarry System Programmer Operating Systems EVERTEC, LLC -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Marcy Cortes Sent: Wednesday, April 29, 2020 7:54 PM To: [email protected] Subject: Re: Dracut error after Booting default (grub) message you aren't the only one. Something's definitely different. Open a case with your Linux support. For all least all of the system volumes (ones needed to boot) , consider erasing the 51-dasd* rules in /etc/udev/rules.d and then using "chzdev -e " to put back new 41-dasd-eckd* rules. Then running mkinitrd Then running grub2-mkconfig -o /boot/grub2/grub.cfg; grub2-install These things or some combo of them have solved it when we hit it (after using rescue system get to a point where we could do this) You can also "cat /run/initramfs/rdsosreport.txt" to get more info. It will like complain of some missing devices or maybe you simply have to vgscan or vgchange -ay that rootvg Or boot with parm rd.debug as Mark Post mentioned here last week. -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Victor Echavarry Sent: Wednesday, April 29, 2020 2:40 PM To: [email protected] Subject: [LINUX-390] Dracut error after Booting default (grub) message Hi: The Unix Group is having an internment issue patching SLES Linux guest. They patch every Linux guest on a monthly basis. A server patch various month without a problem and for some unexplained reason after a successful patch and reboot or IPL the guest, shows a warning error and go to Emergency Shell DIAG swap disk defined at virtual address 160 (24789 4K pages of swap space) Enter a non-blank character and ENTER (or two ENTERs) within 10 seconds to interrupt Linux IPL. DMSCYW2246I 16:31:36 WAKEUP in (10 sec). DASD 0190 DETACHED DASD 0191 DETACHED DASD 019E DETACHED Booting default (grub2) dracut-initqueue[347]: Warning: dracut-initqueue timeout - starting timeout scripts dracut-initqueue[347]: Warning: dracut-initqueue timeout - starting timeout scripts dracut-initqueue[347]: Warning: dracut-initqueue timeout - starting timeout scripts . . . . dracut-initqueue[347]: Warning: Could not boot. Starting Dracut Emergency Shell... Warning: /dev/mapper/rootvg-usrlv does not exist Warning: /dev/rootvg/usrlv does not exist Generating "/run/initramfs/rdsosreport.txt" Entering emergency mode. Exit the shell to continue. Type "journalctl" to view system logs. You might want to save "/run/initramfs/rdsosreport.txt" to a USB stick or /boot after mounting them and attach it to a bug report. Give root password for maintenance (or press Control-D to continue): Does anyone saw this before and tell us what to do? We have SLES 12 SP5 under z/VM 6.4. 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