------- Original Message ------- On poniedziałek, 28 listopada 2022 21:36, Ludovic Courtès wrote: > > > Hi, > > Marek Paśnikowski marekpasnikowski@protonmail.com skribis: > > > grafting '/gnu/store/vp4ybqhxdrf4b2fk37c0s72g6iafqsmz-gtk-4.8.1-doc' -> '/gnu/store/7hfq1hbhfsmzjil433cjd8mngvxd05xv-gtk-4.8.1-doc'... > > ERROR: In procedure fport_fill_input: Input/output error > > > This indicates an error while writing to your storage device, which > could be due to a failing device. > > Does /var/log/messages contains hints of input/output errors? Yes, there is one node with a wrong checksum. On the internet I found [[https://forums.unraid.net/topic/92704-solved-btrfs-csum-error/][a matching topic on Unraid Forum]]. I checked RAM with Memtest (it passed) and then identified the broken file. So far, I think I got "lucky" and had a "cosmic ray" kind of event - I do remember a single failure of resume-from-suspend some time ago. I should be able to heal the system by deleting the bit-flipped file and reinstalling gtk. Does Guix have the ability to remove or rewrite a specific file in its store? The file is rooted in the system configuration - not in a profile. Thank you for your help. I would also like to suggest a tweak to the error message - to make the file system failure more obvious.