ipl fails with a "program interrupt loop" message
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Novell SUSE Linux Enterprise Server 9 Service Pack 4 on S/390 and S/390x
This error does not occur in case of an update of SLES9 SP3 to SP4.
The root cause is a misplaced RAM Disk, so that after boot, RAMDISK and kernel memory bitmap overlap.
The default initrd value in the ramdisk line in /etc/zipl.conf has changed between SP3 and SP4:
In SP3: ramdisk = /boot/initrd,0x1000000
In SP4: ramdisk = /boot/initrd,0x2000000
The value 0x2000000 will not work on systems with little memory, while the value 0x1000000 will not work on systems with large memory.
So returning the default value to 0x1000000 as in SP3 would cause large-memory system to fail, keeping the current one breaks other systems.
ramdisk = /boot/initrd,0x2000000
ramdisk = /boot/initrd,0x1000000
followed by the command "zipl".
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- Document ID:3113358
- Creation Date:13-MAR-08
- Modified Date:27-APR-12
- SUSESUSE Linux Enterprise Server
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