On Wed, Nov 11, 2020 at 3:26 PM Thomas Schmitt <scdbac...@gmx.net> wrote: > > Hi, > > Anatoly Pugachev wrote: > > mator@chubaka:~$ getconf PAGESIZE > > 65536 > > mator@chubaka:~$ uname -a > > Linux chubaka 5.9.0-1-powerpc64 #1 SMP Debian 5.9.1-1 (2020-10-17) > > ppc64 GNU/Linux > > [...] > > mator@chubaka:~$ md5sum /mnt/1mb > > md5sum: /mnt/1mb: Input/output error > > Does it deliver any bytes before erroring out ? > > dd if=/mnt/1mb bs=1 | wc -c
nothing, i.e. read fails immediately mator@chubaka:~$ dd if=/mnt/1mb bs=1 | wc -c dd: error reading '/mnt/1mb': Input/output error 0+0 records in 0+0 records out 0 bytes copied, 9.0447e-05 s, 0.0 kB/s 0 > Just to be sure, can you copy the ISO to a Linux machine with <= 32 KiB > page size and verify that the file "1mb" is readable without i/o error > and yields the due checksum ? > (I am not aware how xorriso could have spoiled it, but ...) copied to my local x86 VM: mator@u164:~> scp chubaka:/tmp/test.iso . test.iso 100% 68KB 960.4KB/s 00:00 mator@u164:~> getconf PAGESIZE 4096 mator@u164:~> ls /mnt mator@u164:~> sudo mount -o loop,ro test.iso /mnt mator@u164:~> md5sum /mnt/1mb md5sum: /mnt/1mb: Input/output error mator@u164:~> dd if=/mnt/1mb bs=1 | wc -c dd: error reading '/mnt/1mb': Input/output error 0+0 records in 0+0 records out 0 bytes copied, 0.000153856 s, 0.0 kB/s 0 probably xorriso wrote a wrong iso on ppc64 ?
