Folks:
Complicated story, have a multi-multi-boot set up on my MacPro '12 . . . posting the question here because there can be conversation, the problem bridges across the Gecko Rolling, the TW . . . and the Manjaro installs that I have on /sdb7,8,9 . . . since I used the TW TTY to run these commands I feel it's "OK" to post the question here . . . . I ran this "mount" command to try to "fix" a fresh install of Gecko that on reboot had a "kernel not found" error, although as I had the experience before in TW where first reboot into system was fine, but second was not . . . wasn't sure what the issue was. Booted Super Grub to try to boot the install and that failed. I booted into TW and dropped into a TTY and ran this data from @knurpht that worked for my install of TW a few months back:
Code:
I'm not going to read the entire thread again, so please replace '/dev/sdX#' by the proper entry for your root fs. Boot from a TW install image, hit Ctrl+Alt+F2, you'll see a root prompt. Then do:
Code:
mount /dev/sdb8 /mnt
mount --bind /dev /mnt/dev
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys
chroot /mnt
mount -a
yast
Go System - Bootloader, make sure "Probe for foreign OS" is checked. Hit OK.
Exit YaST
hit Ctrl+D to exit the chroot, reboot.
When I was "in" the Gecko Yast Bootloader I couldn't arrow around and "check" "Probe for foreign OS" . . . but I could move between "kernel parameters" and the three tab headings . . . so in actual fact I couldn't make any changes in Gecko Yast while I was there, but seems like "mounting" the partition did something so that on reboot Grub found it and although it showed another error, "video not found"?? it still loaded the kernel and Gecko booted up!!!
I then went to Gecko's Yast Bootloader and checked "Probe foreign OS" . . . and I rebooted . . . back into TW . . . which already had the "probe foreign OS" checked from the last time we went through the "grub not finding opensusetw" problem here in this forum.
So all appeared to be fine, until this morning, this should be "Manjaro" day . . . but now in Grub there is no Manjaro option??? Booted up the SuperGrub2 disk, found the /EFI/manjaroxxxx file, clicked go . . . and into a black "grub rescue" cursor??? Don't know what to enter, so I put "reboot" . . . and nope, "command not found" . . . .
Shut the machine down, booted into TW and launched GParted . . . and seems like sdb7 . . . only has "447 MB" of data . . . unidentified data?? I haven't run anything other than SG2, and system updates in TW, Gecko, and U-MATE . . . didn't try to mount "sdb7" and/or do anything with sdb7 . . . but it now appears to be gone?
Is there something in using TTY to "mount" a partition that would erase the partition next to it???? Seems odd, it's not like before in TW where something in the installer "broke" the Grub menu contents for TW, but the data for "/" was there and I could log in via TTY and run zypper updates . . . here data appears to have been surgically removed??? By another system, in this case possibly one of the adjacent OSs, which happen to both be opensusetw???? The only thing that remains of Manjaro are a couple of lines in grub cfg & efi . . . that error to grub rescue . . . . :O
