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On 4/18/2014 9:05 AM, Joost Roeleveld wrote: |
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> On Friday 18 April 2014 12:02:01 Thomas Mueller wrote: |
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>> Is there a way to make Gentoo or other Linux allow extra time when root is |
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>> on a USB device? Any way to say "just a second" or more like 15 seconds |
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>> before aborting with the message that root partition does not exist? |
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>> |
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>> In this case it's an IDE hard drive in a USB enclosure. |
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>> |
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>> FreeBSD seems to handle this situation better. I would get a |
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>> mountroot> |
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>> prompt, to which I would respond |
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>> ufs:/dev/ada0p3 |
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>> and be good. |
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>> |
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>> I could avoid this situation with /boot/loader.conf |
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>> |
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>> legal.realtek.license_ack=1 |
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>> rsu-rtl8712fw_load="YES" |
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>> kern.cam.scsi_delay="13000" # Delay (in ms) before probing SCSI |
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>> kern.cam.boot_delay="16000" # Delay (in ms) of root mount for CAM bus |
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>> hint.re.0.disabled="1" |
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>> |
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>> but don't know if Linux has anything like this. |
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>> |
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>> Only lines 3 and 4 are relevant to this issue; other lines are for different |
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>> issues. |
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>> |
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>> Tom |
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> Try adding " rootdelay = 15 " to the kernel commandline. |
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> This should make the kernel wait 15 seconds before trying to access the root- |
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> device. |
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> |
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> See: |
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> http://www.linuxtopia.org/online_books/linux_kernel/kernel_configuration/re58.html |
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> |
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> I used this myself in the past when booting from USB-devices. |
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> |
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> Kind regards, |
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> |
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> Joost |
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> |
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Tiny Core linux, which is primarily booted over usb, does something |
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similar. If I'm understanding this right, they have a loop in their |
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initrd that just waits a maximum of X seconds until it shows up. |
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|
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I'm not sure how easy this would be to move into something else. |
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|
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Lines 114-128: |
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http://git.tinycorelinux.net/index.cgi?url=Core-scripts.git/tree/etc/init.d/tc-config |
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