Dear developers, To update many old production servers never updated I need to use an old CentOS 5.6 live CD (CentOS-5.6-i386-LiveCD.iso) which does not support loopback method. Impossible to get it to work, impossible to boot it always cannot find root file system! dd'ing this iso to an USB key does not work too. LiveCD does not boot. So I have using severals method and created a HDD which is booting and working. This HDD has the following settings:Disk /dev/sdb: 775,2 MiB, 812851200 bytes, 1587600 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x8a965d8b
Device Boot Start End Sectors Size Id Type /dev/sdb1 * 128 1583231 1583104 773M c W95 FAT32 (LBA) I made a raw image of this disk using dd. Here is the settings of the disk image:Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x8a965d8b Device CentOS-5.6-i386-LiveHDD-Working.img Boot Start End Sectors Size Id Type * 128 1583231 1583104 773M c W95 FAT32 (LBA) if I try to boot directly from GRUB the physical HDD it is working. grub ls return: (hdd) (hdd,msdos1) set root=(hdd) chainloader +1 But if I try to boot from the raw disk imageinsmod part_msdos insmod fat loopback hdd /boot/img/CentOS-5.6-i386-LiveHDD-Working.img grub ls return : (hdd) (hdd,msdos1) set root=(hdd) chainloader +1This does not boot and I have an empty screen with a blinking cursor. I tried to export MBR from the physical disk using dddd if=/dev/sdb of=~/CentOS-5.6-i386-LiveHDD-Working.mbr bs=512 count=1 and boot from itinsmod part_msdos insmod fat loopback hdd /boot/img/CentOS-5.6-i386-LiveHDD-Working.img set root=(hdd) chainloader (hd0,gpt1)/boot/img/CentOS-5.6-i386-LiveHDD-Working.mbr This does not boot too and I have an empty screen with a blinking cursor. Is it possible to boot from a RAW disk image ? Kind RegardsFabien
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