If you are using Oracle Linux cloud images available from https://yum.oracle.com/oracle-linux-templates.html and at some point it does not boot up again and you see it is stuck in the bootloader (grub> prompt), then here are some steps to help you boot it up again. I have used them to rescue OL8 systems.

Oracle Support has a note “Oracle Linux: How to Recover a Non-Booting GRUB2 After Kernel Update (Doc ID 2898390.1)” but these steps do not perfectly work for the provided cloud image.

First check what disk devices are available, for the cloud image you should see this

grub> ls
(hd0) (hd0,msdos1) (hd0,msdos2)

Then check what Linux kernels you have available on this system. You should see vmlinuz ja initramfs file (files) with the matching version number.

grub> ls (hd0,msdos1)/
vmlinux-5.4.17-2136.342.5.el8uek.x86_64 initramfs-5.4.17-2136.342.5.el8uek.x86_64.img

Now boot it up

insmod lvm
insmod normal
insmod gzio
insmod part_gpt
insmod xfs
set root=(hd0,msdos1)
linux /vmlinux-5.4.17-2136.342.5.el8uek.x86_64 root=/dev/mapper/vg_main-lv_root
initrd /initramfs-5.4.17-2136.342.5.el8uek.x86_64.img
boot

After that the system should boot up as normal.

The Oracle Support note claims this can happen due to broken grub.cfg file, but at least the cases I’ve seen grub.cfg has been fine and regenerating it, as the support note recommends, had no help. But at least can temporarily boot up the system again.

To enable edit mode on Interactive Grid immediately when page loads (to save users a double click), you can create a dynamic action to run custom JavaScript on page load:

• Set Static ID on your Interactive Grid region – lets call it MYIG1
• Create a Dynamic Action on event Page Load and on True event let it execute the following JavaScript Code

apex.region("MYIG1").call("getActions").set("edit", true);

Up to this part all is well and if you page is not very log, problem solved. But if the page is longer you will notice a side-effect – the page gets automatically scrolled to set focus on the Interactive Grid. To fix it append a scroll up code to the JavaScript snippet above, so a full example would look like this.

apex.region("MYIG1").call("getActions").set("edit", true);
$("html, body").delay(500);
$("html, body").animate({ scrollTop: 0 },0);

That little bit of delay is necessary, otherwise scrolling will not work. It will also introduce a little bit of “page flickering”, but at least the page focus is back on top when page is loaded.

Tested with APEX 24.2.