Just for reference here is how one can mount a FAT32 USB key during a Debian installation on powerpc. This is needed for example when one wants to store the `dmesg` output during a d-i installation. Since isofs is stricly a read-only system, one cannot use the USB key used during the installation, instead a FAT32 key seems like a good option.
For some reason the linux kernel version used during installation does not have vfat module (`modprobe vfat` → fail ! Thus `mount` does not work). Instead one should: [Ctrl+2, search for modules from the iso] $ cp fat-modules-4.5.0-2-powerpc-di_4.5.3-2_powerpc.udeb /tmp $ cd /tmp $ ar -x fat-modules-4.5.0-2-powerpc-di_4.5.3-2_powerpc.udeb $ xzcat data.tar.xz > data.tar $ tar xf data.tar $ cd /tmp/lib/modules/4.5.0-2-powerpc/kernel/fs/fat $ insmod fat.ko $ insmod vfat.ko $ cd /tmp/lib/modules/4.5.0-2-powerpc/kernel/fs/nls $ insmod nls_cp437.ko $ insmod nls_utf8.ko Now finally mount works: $ mount /dev/sdb /tmp/bla cheers
