Dear gem5 community, I have successfully run RISCV FS using the following command: ./build/RISCV/gem5.opt configs/example/gem5_library/riscv-fs.py However, I cannot write anything inside the simulated image because I get "Read-only file system". How can I resolve it? My benchmark produces a number of files and it cannot write them during the simulation. The terminal output: _ _ ____ _ _ | | | |/ ___|__ _ _ __ | | (_)_ __ _ ___ __ | | | | | / _` | '_ \| | | | '_ \| | | \ \/ / | |_| | |__| (_| | | | | |___| | | | | |_| |> < \___/ \____\__,_|_| |_|_____|_|_| |_|\__,_/_/\_\ Welcome to RiscV UCanLinux login: root Password: root@UCanLinux:~ # ls index.html root@UCanLinux:/ # cd /home root@UCanLinux:/home # ls root@UCanLinux:/home # mkdir test mkdir: can't create directory 'test': Read-only file system Thank you in advance for any help! :) Best regards, Nikos

Hi Nikos, I believe it is due to the default kernel params passed to the kernel https://gem5.googlesource.com/public/gem5/+/refs/heads/develop/src/python/gem5/components/boards/riscv_board.py#487 . I think it could be fixed by changing "ro" to "rw", which tells the kernel to mount "/" as read-write. Regards, Hoa Nguyen On Wed, Jun 8, 2022 at 7:37 AM Νικόλαος Ταμπουρατζής < ntampouratzis@ece.auth.gr> wrote: > Dear gem5 community, > > I have successfully run RISCV FS using the following command: > > ./build/RISCV/gem5.opt configs/example/gem5_library/riscv-fs.py > > However, I cannot write anything inside the simulated image because I > get "Read-only file system". How can I resolve it? > My benchmark produces a number of files and it cannot write them > during the simulation. > > The terminal output: > _ _ ____ _ _ > | | | |/ ___|__ _ _ __ | | (_)_ __ _ ___ __ > | | | | | / _` | '_ \| | | | '_ \| | | \ \/ / > | |_| | |__| (_| | | | | |___| | | | | |_| |> < > \___/ \____\__,_|_| |_|_____|_|_| |_|\__,_/_/\_\ > Welcome to RiscV > > UCanLinux login: root > Password: > root@UCanLinux:~ # ls > index.html > root@UCanLinux:/ # cd /home > root@UCanLinux:/home # ls > root@UCanLinux:/home # mkdir test > mkdir: can't create directory 'test': Read-only file system > > > > Thank you in advance for any help! :) > > Best regards, > Nikos > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org >

Dear Hoa, Thank you for the quick answer! It worked! :) Best regards, Nikos Quoting Hoa Nguyen <hoanguyen@ucdavis.edu>: > Hi Nikos, > > I believe it is due to the default kernel params passed to the kernel > https://gem5.googlesource.com/public/gem5/+/refs/heads/develop/src/python/gem5/components/boards/riscv_board.py#487 > . > > I think it could be fixed by changing "ro" to "rw", which tells the kernel > to mount "/" as read-write. > > Regards, > Hoa Nguyen > > On Wed, Jun 8, 2022 at 7:37 AM Νικόλαος Ταμπουρατζής < > ntampouratzis@ece.auth.gr> wrote: > >> Dear gem5 community, >> >> I have successfully run RISCV FS using the following command: >> >> ./build/RISCV/gem5.opt configs/example/gem5_library/riscv-fs.py >> >> However, I cannot write anything inside the simulated image because I >> get "Read-only file system". How can I resolve it? >> My benchmark produces a number of files and it cannot write them >> during the simulation. >> >> The terminal output: >> _ _ ____ _ _ >> | | | |/ ___|__ _ _ __ | | (_)_ __ _ ___ __ >> | | | | | / _` | '_ \| | | | '_ \| | | \ \/ / >> | |_| | |__| (_| | | | | |___| | | | | |_| |> < >> \___/ \____\__,_|_| |_|_____|_|_| |_|\__,_/_/\_\ >> Welcome to RiscV >> >> UCanLinux login: root >> Password: >> root@UCanLinux:~ # ls >> index.html >> root@UCanLinux:/ # cd /home >> root@UCanLinux:/home # ls >> root@UCanLinux:/home # mkdir test >> mkdir: can't create directory 'test': Read-only file system >> >> >> >> Thank you in advance for any help! :) >> >> Best regards, >> Nikos >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-leave@gem5.org >>