== Artful stock kernel == Fails to upgrade CAP file. ubuntu@awrep7:~$ sudo modprobe capsule-loader ubuntu@awrep7:~$ sudo su root@awrep7:/home/ubuntu# cd fw/ root@awrep7:/home/ubuntu/fw# cat 0ACJA510.CAP > /dev/efi_capsule_loader cat: write error: Invalid argument root@awrep7:/home/ubuntu/fw#
Jan 30 16:27:20 awrep7 kernel: [ 505.615127] efi: capsule update failed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1746019 Title: [Artful/Bionic] Fix capsule update regression since kernel v4.13. Status in linux package in Ubuntu: Incomplete Bug description: [IMPACT] Commit 82c3768b8d68 ("efi/capsule-loader: Use a cached copy of the capsule header") refactored the capsule loading code that maps the capsule header, to avoid having to map it several times. However, as it turns out, the vmap() call we ended up removing did not just map the header, but the entire capsule image, and dropping this virtual mapping breaks capsules that are processed by the firmware immediately (i.e., without a reboot). [FIX] The following patch fixes the issue https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/firmware/efi/capsule-loader.c?id=f24c4d478013d82bd1b943df566fff3561d52864 [TEST] [REGRESSION POTENTIAL] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746019/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
