Hello lzSun, On Tue, Nov 13, 2018 at 03:02:32PM +0800, lzSun wrote: > I want to use a file system in tz_vmm demo. I get to know that there's > sd_card driver for i.mx53 quick start board and a stable file system in > genode which is rump_fs. So my idea is to use rump_fs and use sd_card for > storage. The sd_card is formatted as ext2 and it is also used to booting the > system. I write a simple test client called "test-file" which just try to > create a file and open it.However, when the system booting, it print the > error message: > [init -> sd_card_drv] CID: 0x3534453 0x55303447 0x80b0970d 0x4000e700 > [init -> sd_card_drv] RCA: 0xe624 > [init -> sd_card_drv] SD card detected > [init -> sd_card_drv] capacity: 3781 MiB > [init -> part_blk] Partition 1: LBA 10240 (7733248 blocks) type: 83 > [init] child "part_blk" announces service "Block" > [init -> part_blk] session opened at partition 1 for 'rump_fs -> ' > [init -> rump_fs] Using ext2fs as file system > [init -> rump_fs] asserting rump kernel 14249 KB of RAM > [init -> rump_fs] Error: mounting file system failed (errno 13 ) > [init -> rump_fs] Error: dry mount attempt failed, aborting > [init -> rump_fs] Error: Uncaught exception of type 'Genode::Exception' > [init -> rump_fs] Warning: abort called - thread: ep > [init] child "rump_fs" exited with exit value 1 > > I searched the error number online which tells me that it seems related to > "permission".Here's part of my configuration:
Your're right errno 13 is EACCES in rump/BSD. > <start name="sd_card_drv"> > <resource name="RAM" quantum="3M"/> > <provides><service name="Block"/></provides> > </start> > <start name="part_blk"> > <resource name="RAM" quantum="10M" /> > <provides><service name="Block" /></provides> > <route> > <service name="Block"><child name="sd_card_drv" > /></service> > <any-service><parent/><any-child/></any-service> > </route> > <config> > <policy label_prefix="rump_fs" partition="1"/> This policy configuration permits read access to partition 1. If you add the following attribute to the policy, rump_fs will be granted read-write access to the partition. writeable="yes" > </config> > </start> > <start name="rump_fs" caps="200"> > <resource name="RAM" quantum="16M"/> > <provides><service name="File_system"/></provides> > <config fs="ext2fs"> > <policy label="" root="/" writeable="yes"/> > </config> > <route> > <service name="Block"> <child name="part_blk"/> </service> > <any-service> <parent/> <any-child/> </any-service> > </route> > </start> > <start name="test-file" caps="100"> > <resource name="RAM" quantum="4M"/> > <config> > <vfs> > <dir name="dev"> > <log/> > <inline name="rtc">2000-01-01 00:00</inline> > </dir> > <fs/> > </vfs> > <libc stdout="/dev/log" stderr="/dev/log" > rtc="/dev/rtc" /> > </config> > </start> > > Any help will be ok, thanks in advance! Regards -- Christian Helmuth Genode Labs https://www.genode-labs.com/ · https://genode.org/ https://twitter.com/GenodeLabs · /ˈdʒiː.nəʊd/ Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth _______________________________________________ Genode users mailing list [email protected] https://lists.genode.org/listinfo/users
