Hello list, My little Celeron LAN server lives on /dev/sda5, with /boot on /dev/sda2. It's a UEFI system so /dev/sda2 is VFAT. Other partitions exist but they're not germane here.
The poor wee thing takes about four hours to compile a kernel using both its cores, during which time I keep /boot mounted. I could leave mounting it until the 'make install' stage but I haven't done that so far. The machine also contains a small rescue system on /dev/sda4, which I maintain in a chroot under /mnt/rescue. Its kernel also takes four hours since I prefer to keep the two kernels identical (apart from a local '-rescue' suffix in that system). Now, my question is: is it safe for me to mount the boot partition on /boot and /mnt/rescue/boot simultaneously? The man page hints that it is, and I can see them both: $ cat /proc/mounts | grep boot /dev/sda2 /mnt/rescue/boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=850,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0 /dev/sda2 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=850,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0 The main system and the rescue system will each write files to its own /boot, but there shouldn't be any collisions because of course they all have different names. Ordinarily, there's no difficulty because the two systems don't usually need kernels compiled at the same time, but if I can run them concurrently overnight I ought to finish ahead. Has anyone any cautionary notes for me? -- Regards, Peter.