In the process of installing Ascii on a new HD in my box, I somehow managed to break GRUB2 un the principal hard disk in the box, whhich is /dev/sdb. When I boot /dev/sdb, I do not get its GRUB menu, but a simple blinking cursor at the upper left. This usually indicates video problems, but I have no problem with video when I use another means to boot /dev/sdb.
To boot /dev/sdb I have to use reconnect SATA cables to all three disks and use the BIOS boot menu to boot /dev/sda or /dev/sdck. Then I use the boot menu on the disk to boot /dev/sdb. /dev/sdb proceeds to boot without any problem. To fix this, it went to reinstall GRUB2 on /dev/sdb. That effort failed: 1. I insert an Ascii netinst key and select Advanced Options, Then I select CLI rescue mode. I go though the installation steps to the point I'm presented with a list of partitions. These are: /dev/sdb1 This is /root /dev/sdv2 This is broken out /boot ... [other partitions on sdb] /dev/sdc1 [root on a HD with its SATA cable pulled] /dev/sdc2 [ascii system] /dev/sda also has its SATA cable pulled for the moment, but it does not show up in the list of partitions. No idea why /dev/sdc shows up. 2. The directions say to pick the root partition, and so I pick /dev/sdb1. 3. Rescue mode next tells me that it sees I have /boot broken out, and that to reinstall GRUB@ I need to mount it. So I say, Yes, mount it. 4. I am returned to the Rescue options menu. The choices are to pick a differnet root file system, execute a shell, or to reboot. The only other root file system is /dev/sdc1, but that's not where I want to reinstall GRUB. I see no use for a shell. I don't see any option to reinstall GRUB2. In syslog, when I successfully boot /dev/sdb1 is the line: Kernel command line: BOOT_IMAGE=/vmlinuz-4.9.0-9-amd64 root=UUID=fbc8d367-795c-48f2-a9c3-08029e1710e2 ro quiet In /dev/sdb1/ are the symlinks: initrd.img -> boot/initrd.img-4.9.0-9-amd64 initrd.img.old -> boot/initrd.img-4.9.0-8-amd64 vmlinuz -> boot/vmlinuz-4.9.0-9-amd64 vmlinuz.old -> boot/vmlinuz-4.9.0-8-amd64 vmlinuz-4.9.0-9-amd64 and initrd.img-4.9.0-9-amd64 are found in /dev/sdb2. The file /boot/grub/grubenv is empty In /etc/default/grub are: GRUB_DEFAULT=0 GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet" GRUB_CMDLINE_LINUX="" Haines Brown _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
