Reopening, this issue occurs on a new installation of Fedora 39 with /boot on a RAID 1 device.
https://askubuntu.com/questions/468466/diskfilter-writes-are-not- supported-what-triggers-this-error/498281#498281 and https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1274320 indicate this problem is related to LVM/RAID. $ df -hP /boot Filesystem Size Used Avail Use% Mounted on /dev/md125 2.0G 250M 1.6G 14% /boot $ cat /proc/mdstat Personalities : [raid10] [raid1] [raid6] [raid5] [raid4] md125 : active raid1 sdc2[2] sdb2[1] sdd2[3] sda3[0] 2094080 blocks super 1.2 [4/4] [UUUU] bitmap: 0/1 pages [0KB], 65536KB chunk There is also a patch proposed at https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=754921 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1274320 Title: Error: diskfilter writes are not supported To manage notifications about this bug go to: https://bugs.launchpad.net/grub/+bug/1274320/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
