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#1 2011-11-25 13:21:38

mutlu_inek
Member
From: all over the place
Registered: 2006-11-18
Posts: 683

Cannot boot into boot menu from GPT-formatted hard drive

I have acquired a new laptop, a Lenovo ThinkPad T420. I got everything working beautifully, but I cannot boot into the system from the hard drive itself. The boot menu never comes up, whether I use GRUB2 or Syslinux. I can, however, boot from a Linux install CD or thumb drive and select the "boot from existing OS" option, which takes me straight to the GRUB2 or Syslinux boot menu.

Initially, I was going for making this a UEFI system. So I formatted to GPT, added the UEFI partition and installed GRUB2, which reported successful installation. However, the GRUB2 boot menu would not come up. I could boot using a CD or thumb drive and choose "boot into existing OS". I reinstalled GRUB2 several times, to no avail. So I discarded the UEFI option, created a GRUB2 bios partition and did the grub_bios-install. This also reported success, but, again, it did not boot. Lastly, I installed Syslinux (also into the MBR). Same problem.

Parted gives me this:

Model: ATA WDC WD7500BPKT-0 (scsi)
Disk /dev/sda: 750GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number  Start   End    Size    File system  Name                 Flags
 1      2097kB  204MB  202MB   fat16        UEFI
 4      204MB   206MB  1049kB               BIOS boot partition  bios_grub
 2      206MB   357MB  151MB   ext4         BOOT                 legacy_boot
 3      357MB   750GB  750GB                LVM                  lvm

Any ideas?

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#2 2011-11-26 13:28:04

the.ridikulus.rat
Member
From: Indiana, USA
Registered: 2011-10-04
Posts: 765

Re: Cannot boot into boot menu from GPT-formatted hard drive

"However, the GRUB2 boot menu would not come up" - What exact error(s) are you getting? Any idea on http://www.rodsbooks.com/gdisk/bios.html for grub2-bios or syslinux. If you are able to work out UEFI boot, stick with it since GPT works best in UEFI system.

Last edited by the.ridikulus.rat (2011-11-26 13:29:53)

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