使用/ boot将分区扩展到左侧后,Syslinux“ Missing OS”

我有一个GPT分区驱动器。 有点混乱,所以我开始整理一切。

/dev/sda2 is an ArchLinux install and the location of /boot with syslinux being used.

/dev/sda1 is a ubuntu install.

I plan soon to complete do away with the ubuntu partition but for now just make it smaller and the increased /dev/sda2 in size by moving the start of it up to the end of the ubuntu partition.

但是,现在syslinux将无法启动,并且计算机只会出现丢失的os错误。

Acording to gparted /dev/sda2 does still have the boot flag.

我使用了现场CD来检查gparted,如果分区仍然可以正常运行,并且一切正常,则无法启动。

我该怎么做才能再次启动syslinux?