Sorry I had forgot to remove dependency from /boot/efi So it was causing this error attached the file, reconfiguring the whole system hoping it must work Thanks very much for all the help :) On Tue, 2 Mar 2021 at 16:04, Shyam Saran wrote: > As mentioned I had removed all dependency for root "/" fs > > but result is same > > $ guix system build ~/tmp/config.scm > guix system: warning: the following groups appear more than once: users > guix system: error: service 'swap-/dev/mapper/guix-swap' requires > 'device-mapping-guix-swap', which is not provided by any service > > Then again removed all dependencies from all fs /var /gnu /tmp etc > But the result is the same. > > $ guix system build ~/tmp/config.scm > guix system: warning: the following groups appear more than once: users > guix system: error: service 'swap-/dev/mapper/guix-swap' requires > 'device-mapping-guix-swap', which is not provided by any service > > > Thanks > > > On Mon, 1 Mar 2021 at 14:56, Ludovic Courtès wrote: > >> Hi Shyam, >> >> Shyam Saran skribis: >> >> > Result of application of system build command >> > >> > $ guix system build ~/tmp/config.scm >> > >> > 2s >> > guix system: warning: the following groups appear more than once: users >> > guix system: error: service 'swap-/dev/mapper/guix-swap' requires >> > 'device-mapping-guix-swap', which is not provided by any service >> >> The problem here is that you had: >> >> (file-system >> (mount-point "/") >> ;; … >> (needed-for-boot? #t) >> (dependencies %localmachine-mapped-devices)) >> >> All the needed-for-boot file systems had all the mapped devices in >> ‘dependencies’. Thus, no ‘device-mapping-guix-swap’ Shepherd service >> was created, because that device mapping was needed at boot. >> >> The solution is to remove the ‘dependencies’ field for all your file >> systems. Since they have /dev/mapper/… as their ’device’, you don’t >> need ‘dependencies’: it’s automatically inferred. If, after this >> change, you run: >> >> guix system shepherd-graph /tmp/config.scm| xdot - >> >> you can see that the ‘swap-/dev/mapper/guix-swap’ service depends on >> ‘device-mapping-guix-swap’. >> >> HTH! >> >> Ludo’. >> >