The content of the disk is the following: LINUX146 FILELIST A0 V 169 Trunc=169 Size=5 Line=1 Col=1 Alt=18 Cmd Filename Filetype Fm Format Lrecl Records Blocks Date Time * FTPBOOT PARM K1 V 70 6 1 2020-12-30 06:48:39 FTPBOOT INITRD K1 V 8192 5673 11348 2020-12-30 06:48:34 FTPBOOT KERN K1 V 80 104353 2090 2020-12-30 06:48:34 * 00EB5CA8 CMSUT1 K1 V 80 573040 11472 2020-12-30 06:48:34 SUSE INS K1 V 57 6 1 2020-12-30 06:48:29 Doing the math shows that the disk is full. The unusual file is 00EB5CA8 CMSUT1. According to Google this is a temporary file created by CMS commands. In qaboot he suspect is "pipe < ftpboot initrd t | fblock 80 00 | > ftpboot initrd t" This converts the fresh downloaded file into a 80-Byte fixed block file. I did the following change to qaboot: - Increased the size of the VDSK disk from 200000 to 300000 Blocks - exchanged the sequence of the download of initrd and kernel (not shure whether this has a real effect) can someone please restart the test?